Search

Your search keyword '"M.E. Ortiz"' showing total 100 results
Start Over Author "M.E. Ortiz"
100 results on '"M.E. Ortiz"'

1. Intoxicación por munición de plomo en aves silvestres en España y medidas para reducir el riesgo

Author

R. Mateo, N. Vallverdú-Coll, and M.E. Ortiz-Santaliestra

Subjects
Environmental sciences, GE1-350
Abstract

La intoxicación por ingestión de munición de plomo en aves silvestres es conocida en España desde finales del siglo pasado. Elevadas densidades de perdigones de plomo en diversos humedales de importancia internacional producen tasas de ingestión de perdigones cercanas al 70 % en es- pecies como el ánade rabudo (Anas acuta) y el plumbismo llega a ser una de las principales causas de mortalidad de la amenazada malvasía ca- beciblanca (Oxyura leucocephala). El plumbismo también ha sido descrito en diversas especies de aves rapaces y se ha comprobado que la exposición al plomo es elevada en las especies más carroñeras y oportunistas. La contaminación de la carne de caza también ha sido objeto de es- tudio, debido a que en España se da la particularidad de cocinarla en escabeche, lo que incrementa la transferencia de plomo de la munición a la carne. Por el momento, la única acción llevada a cabo para reducir el riesgo de exposición al plomo de la munición en aves y humanos ha sido la prohibición desde 2001 del uso de perdigones de plomo en humedales protegidos. En esta revisión se hace un repaso a los estudios llevados a cabo en España sobre la contaminación por el plomo de la munición y el efecto que están teniendo las medidas hasta el momento adoptadas para reducir este riesgo.

Published
2013

2. Preliminary Measurements of Be-10/Be-7 Ratio in Rainwater for Atmospheric Transport Analysis

Author

K. De Los Rios, M. A. Martinez-Carrillo, Luis Acosta, C. Méndez-García, M.E. Ortiz, and R. Garcia-Martinez

Subjects
010504 meteorology & atmospheric sciences, Isotope, chemistry.chemical_element, 010403 inorganic & nuclear chemistry, Atmospheric sciences, 01 natural sciences, 0104 chemical sciences, Rainwater harvesting, Isotopic ratio, chemistry, TRACER, Soil water, Erosion, Environmental science, Beryllium, 0105 earth and related environmental sciences
Abstract

The meteoric cosmogenic beryllium has been used as an essential geophysical tracer in the analysis of atmospheric flows and erosion soils since 1960. The first measurements Be-7 and Be-10 concentrations in rainwater from Mexico, have been carried out by using gamma decay spectroscopy and AMS techniques, respectively for each isotope. With this it was possible to report a preliminar value for the Be-10/Be-7 isotopic ratio in such environmental samples. The present work described preliminary results related to rainwater collected at mountain and metropolitan areas. Results are compared with predictions and previous measurements for both radioisotopes, observing a very sensible behavior particularly for the case of Be-7 activities.

Published
2020
Full Text
View/download PDF

3. 14C/12C isotopic ratio of a research nuclear reactor graphite control bar

Author

H. S. Cruz-Galindo, J. Mas-Ruiz, M.E. Ortiz, María Rodríguez-Ceja, D. J. Marín-Lámbarri, G. Reza, A.B. Zunun-Torres, D. Belmont, Adrian Huerta, S. Sandoval-Hipólito, Miguel Ángel Martínez, E. Chávez, R. Raya-Arredondo, A.O. Valdez-Guerrero, and Corina Solís

Subjects
Orders of magnitude (power), 010506 paleontology, Nuclear and High Energy Physics, Materials science, Radiochemistry, Nuclear reactor, 010403 inorganic & nuclear chemistry, 01 natural sciences, 0104 chemical sciences, Semiconductor detector, TRIGA, law.invention, law, Gamma spectroscopy, Graphite, Instrumentation, 0105 earth and related environmental sciences, Bar (unit), Accelerator mass spectrometry
Abstract

In this work we determine the 14 C content in a graphite bar used in the core of the research nuclear reactor TRIGA MARK III, at the “Instituto Nacional de Investigaciones Nucleares” (ININ) in Mexico. The 14 C / 12 C ratio was measured, using Accelerator Mass Spectrometry (AMS) at the Laboratorio Nacional de Espectrometria de Masas con Aceleradores (LEMA) at the ”Instituto de Fisica de la Universidad Nacional Autonoma de Mexico” (IFUNAM). Our results show a 14 C ratio over three orders of magnitude higher than that found in modern organic matter. A γ -ray spectroscopy study of the graphite bar with a High Purity Germanium detector (HPGe) shows the presence of the same radioactive isotopes reported in previous studies of similar bars.

Published
2020
Full Text
View/download PDF

4. Historic binnacle of 14 C/ 12 C concentration in Mexico City

Author

M.E. Ortiz, A. Huerta, María Rodríguez-Ceja, J. Villanueva, E. Chávez, Corina Solís, and J.A. Flores

Subjects
010506 paleontology, geography.geographical_feature_category, 010504 meteorology & atmospheric sciences, business.industry, Fossil fuel, Northern Hemisphere, Urban area, 01 natural sciences, law.invention, chemistry.chemical_compound, Geography, chemistry, law, Mexico city, Carbon dioxide, Dendrochronology, Period (geology), Physical geography, Radiocarbon dating, business, 0105 earth and related environmental sciences
Abstract

The radiocarbon concentration is reduced in urban areas, generally due to high CO2 emissions derived from fossil fuels. In this paper, new Δ14C measurements in cellulose extracted from the growth rings of two trees over a 43-year period are presented. The first is in a zone with clean air (El Nayar, Durango, Mexico) and the second is from the Greater Mexico City area (Chapultepec). Data from El Nayar is consistent with that reported for Zone 2 of the Northern Hemisphere while that from the urban area shows a significant decrease in Δ14C. Our results are compared with data from other cities (Nagoya, Japan and Valladolid, Spain).

Published
2017
Full Text
View/download PDF

5. Characterization of the new hybrid low-energy accelerator facility in Mexico

Author

Corina Solís, E. Chávez, Luis Acosta, G. Reza, D. J. Marín-Lámbarri, J. Mas-Ruiz, E. Andrade, Adrian Huerta, M.E. Ortiz, S. Padilla, and B. Góngora

Subjects
010506 paleontology, Range (particle radiation), Materials science, Proton, 010308 nuclear & particles physics, General Physics and Astronomy, High voltage, 01 natural sciences, Ion source, Ion, Nuclear physics, Magnet, 0103 physical sciences, Physics::Accelerator Physics, Beam (structure), 0105 earth and related environmental sciences, Accelerator mass spectrometry
Abstract

In 2013, a new accelerator mass spectrometry (AMS) facility was inaugurated in Mexico. Since then a substantial number of precise measurements of low concentrations of radioactive isotopes (14C, 10Be, 26Al and Pu) have been made. This paper describes the extension to the isotope separator installed at the end of 2017. It takes advantage of the 1MV High Voltage Engineering Europa (HVEE) tandem accelerator with the multicathode ion source (MCIS) and the fine-tuned injection system which delivers low-energy beams into a multipurpose scattering chamber. The MCIS allows for a quick and smooth change of the ion species to be accelerated. The ability to automatically tune all the optics in the injection system produces an accelerator laboratory that can change the beam species, intensities and energies in a few seconds. The careful and detailed study of the high-energy analyzing magnet using well-known proton resonances in 12C and 28Si, allowed for a calibration of the terminal voltage and beam energy. Stable ion beams with energies as low as 300 keV and as high as 8 MeV, from H to Fe, and with intensities in the range 109-1015 particles per second, were produced as listed.

Published
2019
Full Text
View/download PDF

6. 14 C content in aerosols in Mexico City

Author

A. Huerta, V. Gómez, M.E. Ortiz, María Rodríguez-Ceja, J. Aragón, Miguel Ángel Martínez, E. Chávez, E. Andrade, E. Ortiz, and Corina Solís

Subjects
Total organic carbon, Nuclear and High Energy Physics, 010504 meteorology & atmospheric sciences, Potassium, Trace element, chemistry.chemical_element, Fraction (chemistry), 010501 environmental sciences, complex mixtures, 01 natural sciences, chemistry, Environmental chemistry, Mexico city, Environmental science, Biomass burning, Instrumentation, Carbon, Carbonaceous matter, 0105 earth and related environmental sciences
Abstract

14C-AMS of total carbon was determined in aerosols (PM10 fraction), collected in Mexico City during two weeks from 21 November to 3 December 2012. Other tracers such as total carbon (TC), organic carbon (OC), elemental carbon (EC) and trace element contents were also determined. F14C values varied from 0.39 to 0.48 with an average of 0.43. These values are slightly lower than those previously obtained for PM2.5 in 2003 and 2006 and reflect a high contribution of fossil CO2 to the carbonaceous matter in aerosols from Mexico City. In contrast, from 2006 to 2012 PM10 increased; EC, Ca, Ti and Fe concentrations remained constant, while OC, TC and K concentrations decreased. The use of potassium as an indicator of biomass burning showed that this source was negligible during this campaign. Combined analytical approaches allowed us to distinguish temporal variations of anthropogenic and natural inputs to the F14C.

Published
2016
Full Text
View/download PDF

7. Perspectives for low energy reactions measurements at the new LEMA beam-line

Author

Javier Miranda, E. Andrade, D. J. Marín-Lámbarri, Adrian Huerta, E. Chávez, F. Favela, M.E. Ortiz, L. Barrón-Palos, and Luis Acosta

Subjects
Nuclear physics, Nuclear reaction, Physics, History, Low energy, Ion beam analysis, Beamline, Beam energy, Computer Science Applications, Education, Line (formation), Accelerator mass spectrometry
Abstract

Towards the end of 2017, a new beam line was commissioned at the Laboratorio Nacional de Espectrometría de Masas con Aceleradores (LEMA) at Instituto de Física of the Universidad Nacional Autónoma de México (IFUNAM). Initially, LEMA was a 1 MV tandetron accelerator just dedicated to Accelerator Mass Spectrometry (AMS); nowadays, the new line adopted the main characteristics of the AMS system in a natural way: i.e., it has a high precision measurement of the beam energy and a very high and stable current (tens of μ A) depending of charge state of each isotope. The precise low energy limit around 400 keV opens a window to study reactions in the region of interest for Astrophysics. At the same time, the LEMA beam-line allows to develop experiments combining nuclear reactions with AMS, as well the developing of all of kind of Ion Beam Analysis (IBA) studies. In this work the main characteristics of the line, the ancillary systems and the perspectives for low energy measurements for nuclear studies and applications are described.

Published
2020
Full Text
View/download PDF

8. Reaction production + AMS: an alternative method to study low energy reactions. 26Al as a test case

Author

E. Chávez, M. Flores, E. Andrade, M.E. Ortiz, Corina Solís, S. Padilla, Luis Acosta, F. Favela, A. M. Sánchez-Benítez, J. García-Ramírez, C. Méndez-García, O.G. de Lucio, P. Santa Rita, V. Araujo-Escalona, L. Barrón-Palos, and A. Huerta

Subjects
Alternative methods, Work (thermodynamics), Materials science, 010504 meteorology & atmospheric sciences, 010308 nuclear & particles physics, Reaction production, Physics, QC1-999, Analytical chemistry, 01 natural sciences, Low energy, Low energy reactions, 0103 physical sciences, Irradiation, AMS, Test case, 0105 earth and related environmental sciences
Abstract

Considering the importance of the 26Al nuclei in Astrophysics, in this work, preliminary results regarding a campaign of measurements related with this radioisotope production, are presented. We have taken advantage of two different facilities: first, the radio-nucleus is produced by means of irradiation of targets selected in correlation with particular reactions; once the enrichment with 26Al was made, the targets are analyzed in an AMS machine to obtain the concentration of 26Al produced during the irradiation. With this off-line method, it is possible to measure acceptable small cross sections of a selected low energy reaction. In this work, our preliminary results for three different energies of 28Si(d,α)26Al reaction cross sections are shown, as well as our first considerations to commence with measurements of 25Mg(p,γ)26Al reaction cross sections below 1 MeV., This research is being partially supported by the grants: CONACYT 51600, 82692,123655 and PAPIIT-DGAPA-UNAM IA101616, IG101016. The authors want to thank to the LCG staff for their help to carry out the measurements here presented. Authors want also thank to the assigned reviewer for the carefully revision of this work with which it was highly improved.

Published
2017

9. A new AMS facility in Mexico

Author

E. Chávez-Lomelí, M.E. Ortiz, Corina Solís, E. Barrios, A. Huerta, and E. Andrade

Subjects
Nuclear and High Energy Physics, Acceptance testing, Systems engineering, Mineralogy, Python (programming language), Instrumentation, computer, computer.programming_language, Accelerator mass spectrometry
Abstract

A new Accelerator Mass Spectrometry system has been installed at the Institute of Physics of the National Autonomous University of Mexico (UNAM). A sample preparation chemistry laboratory equipped with computer controlled graphitization equipment (AGEIII) has also been established. Together both facilities constitute the LEMA (Laboratorio de Espectrometria de Masas con Aceleradores) first of its kind in Mexico. High sensitivity characterization of the concentration in a sample of 14C as well as 10Be, 26Al, 129I and Pu are now possible. Since the demand for 14C dating is far more abundant, a data analysis program was developed in the cross-platform programming language Python in order to calculate radiocarbon age. Results from installation, acceptance tests and the first results of 14C analyses of reference materials prepared in our own facility are presented.

Published
2014
Full Text
View/download PDF

10. Measurements of air fluorescence induced by low-energy electrons at low pressures

Author

M.E. Ortiz, Francisco J. Blanco, Jaime Rosado, and F. Arqueros

Subjects
Physics, Nuclear and High Energy Physics, chemistry.chemical_element, Electron, Fluorescence, Nitrogen, Secondary electrons, Wavelength, Low energy, chemistry, Ionization, Excited state, Atomic physics, Instrumentation
Abstract

The fluorescence emission excited by electrons in air and pure nitrogen is measured. Observed fluorescence in 1N and 2P nitrogen band systems generated by electrons of up to 30 keV energies is studied at low pressures with spatial, wavelength and time resolution. Experimental results are in good agreement with a model including effects of secondary electrons from ionisation processes.

Published
2008
Full Text
View/download PDF

11. The application of a beam profile monitor as a beam current integrator for charged particle accelerators

Author

R. Monroy, L. Barrón-Palos, M.E. Ortiz, G. Murillo, R. Macias, R. Policroniades, E. Chávez, E. Moreno, Adrian Huerta, E. Andrade, and A. Varela

Subjects
Physics, Nuclear and High Energy Physics, Ion beam, business.industry, Faraday cup, Charged particle, law.invention, symbols.namesake, Optics, Nuclear magnetic resonance, law, symbols, Physics::Accelerator Physics, Laser beam quality, business, Particle beam, Faraday cage, Instrumentation, Beam (structure), Charge amplifier
Abstract

A new procedure to obtain an online measurement of the beam intensity for charged particle accelerators, as well as the total charge deposited on a target, using a commercial beam profile monitor (BPM) is described in this paper. This procedure can be an alternative to the use of Faraday cups in experiments where their implementation is not feasible.

Published
2007
Full Text
View/download PDF

12. Experimental and theoretical transition probabilities in singly ionized gold

Author

G. Malcheva, V. Fivet, R. Mayo, M.E. Ortiz, Emile Biémont, Pascal Quinet, and Krastan B. Blagoev

Subjects
Physics, Branching fraction, Astronomy and Astrophysics, Configuration interaction, Ion, symbols.namesake, Space and Planetary Science, Ionization, Boltzmann constant, Radiative transfer, symbols, Physics::Atomic Physics, Electron configuration, Atomic physics, Spectroscopy
Abstract

Absolute transition probabilities have been measured for lines originating from the 5d 9 6d and 5d 9 7s electronic configurations in the spectrum of singly ionized gold (Au II). The laser-induced breakdown spectroscopy has been applied to free gold atoms and ions produced by laser ablation. Absolute transition probabilities have been determined using the branching fraction and the Boltzmann plot methods. Theoretical branching fractions as well as radiative lifetime values have also been obtained by a relativistic Hartree-Fock method taking core polarization and configuration interaction effects into account. The new results are compared with previous results when available.

Published
2007
Full Text
View/download PDF

13. New supersonic gas jet target for low energy nuclear reaction studies

Author

R. Policroniades, V. Araujo, P. Santa Rita, O.G. de Lucio, F. Favela, Luis Acosta, E. Andrade, Adrian Huerta, A. Varela, E. Chávez, G. Murillo, and M.E. Ortiz

Subjects
Nuclear physics, Nuclear reaction, Physics, Nuclear and High Energy Physics, Jet (fluid), Low energy, Physics and Astronomy (miscellaneous), lcsh:QC770-798, Physics::Accelerator Physics, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Supersonic speed, Surfaces and Interfaces, Nuclear Experiment
Abstract

A windowless supersonic gas jet target (SUGAR) has been put in operation recently in Mexico. It is the first target of its kind in the country and the region. New research opportunities become available with this facility through the study of the direct beam-gas interaction: nuclear physics and astrophysics, atomic physics, interaction of radiation with matter and other interdisciplinary applications. A general description of the apparatus and its commissioning is given here. Air, nitrogen and argon jets were produced. Proton and deuteron beams were used to measure key parameters of the system to compare with theoretical estimates. In addition, as a first study case, we present data from the ^{14}N(d,α)^{12}C reaction, at center of mass energies between 1.9 and 3.0 MeV with an E-ΔE telescope detector at 35°. Excitation functions for several excited states were constructed and an ^{16}O resonance at 22.72 MeV was confirmed.

Published
2015
Full Text
View/download PDF

14. Evaluación de Algunas Características Reológicas y Bioactivas de Hidrocoloides Mixtos Provenientes de Goma de Flamboyán (Delonix regia) y Proteínas de Leguminosas (Phaseolus Lunatus y Vigna Unguiculata), para Su Potencial Aplicación como Ingrediente Funcional

Author

Santiago Gallegos-Tintoré, Luis Jorge Corzo-Ríos, M.E. Ortiz, Luis Chel-Guerrero, David Betancur-Ancona, and Wilbert Rodriguez-Canto

Abstract

En este trabajo se estudiaron las propiedades funcionales de dos sistemas hidrocoloides mixtos (SHM) formados con goma de flamboyan extraida por precipitacion con etanol e hidrolizados proteicos de Phaseolus lunatus y Vigna unguiculata con un grado de hidrolisis de 19.1% y 32.87%, respectivamente, los cuales se obtuvieron por precipitacion isoelectrica para concentrar la proteina y posterior hidrolisis secuencial con pepsina y pancreatina. Se realizaron las curvas de flujo y se determino el porcentaje de estabilidad (%E.E.) de emulsion mediante un diseno factorial 2 3 con los factores y niveles: pH 3 y 7, temperatura 30 o C y 70 o C y concentracion de goma 0.5% y 1.5% (p/v), manteniendo en 2.5% p/v la concentracion del hidrolizado. Se obtuvo que los acidos aspartico y glutamico fueron los mayoritarios en los hidrolizados. Los SHM de P. lunatus y V. unguiculata con 1.5% (p/v) de goma a 30°C, presentaron la mayor viscosidad ajustandose al modelo de Cross, mientras que los demas sistemas se ajustaron a la ley de la potencia. Los valores de viscosidad estuvieron en el rango de 0.045 hasta 1.76 Pa*s. El %E.E. (porcentaje de estabilidad de la emulsion) alcanzo valores de 100 para ambos sistemas a 1.5% de goma y 30°C, el fenomeno presentado de desestabilizacion fue el cremado, mientras que la emulsion con solo goma presento coalescencia. Se determino la capacidad anticariogenica a los sistemas que mejores propiedades funcionales presentaron. La capacidad anticariogenica fue de una reduccion de la desmineralizacion de 59.75% y 50.21% para los SHM de P. lunatus y V. unguiculata , respectivamente. Por lo anterior, los SHM podrian ser usados en la industria alimentaria ya sea como aditivos alimenticios, incorporarlo en cremas, bebidas y una variedad de aplicaciones, debido a las versatilidad de propiedades funcionales y capacidad anticariogenica que presentaron.

Published
2015
Full Text
View/download PDF

15. Tagged fast neutron beams En > 6 MeV

Author

A. T. Ramos, Luis Acosta, R. Policroniades, V. Araujo, A. Varela, F. Favela, E. Andrade, Adrian Huerta, O.G. de Lucio, M.E. Ortiz, G. Murillo, P. Santa Rita, and E. Chávez

Subjects
Nuclear physics, Physics, Nuclear reaction, Time of flight, Proton, Physics::Instrumentation and Detectors, Neutron flux, Nuclear Theory, Detector, Neutron detection, Neutron, Nuclear Experiment, Neutron temperature
Abstract

Controlled flux of neutrons are produced through the 14N(d,n)15O nuclear reaction. Deuteron beams (2-4 MeV) are delivered by the CN-Van de Graaff accelerator and directed with full intensity to our Nitrogen target at SUGAR (SUpersonic GAs jet taRget). Each neutron is electronically tagged by the detection of the associated15O. Its energy and direction are known and “beams” of fast monochromatic tagged neutrons (En> 6 MeV) are available for basic research and applied work. MONDE is a large area (158 × 63 cm2) plastic scintillating slab (5 cm thick), viewed by 16 PMTs from the sides. Fast neutrons (MeV) entering the detector will produce a recoiling proton that induces a light spark at the spot. Signals from the 16 detectors are processed to deduce the position of the spark. Time logic signals from both the 15O detector and MONDE are combined to deduce a time of flight (TOF) signal. Finally, the position information together with the TOF yields the full momentum vector of each detected neutron.

Published
2015
Full Text
View/download PDF

16. Radiative parameters for some transitions arising from the 3d94d and 3d84s2electronic configurations in Cu II spectrum

Author

Pascal Quinet, K. Blagoev, M.E. Ortiz, Emile Biémont, R. Mayo, and G. Malcheva

Subjects
Physics, Ionization, Radiative transfer, Electron configuration, Configuration interaction, Atomic physics, Condensed Matter Physics, Spectroscopy, Absolute scale, Atomic and Molecular Physics, and Optics, Molecular electronic transition, Ion
Abstract

Transition probabilities of 41 transitions originating from the 3d94d and 3d84s2 electronic configurations of singly ionized copper have been determined using laser-induced breakdown spectroscopy. The Cu II ions have been produced by laser ablation. The experimental relative transition probabilities have been converted into an absolute scale using measured branching fractions and theoretical radiative lifetimes of the corresponding upper states obtained by a relativistic Hartree–Fock method taking core-polarization and configuration interaction effects into account. Comparison of the new results with previously available data is also presented.

Published
2006
Full Text
View/download PDF

17. Absolute cross sections measurement for the 12C + 12C system at astrophysically relevant energies

Author

E. Martinez-Quiroz, A. Varela, J. Aspiazu, E. Moreno, G. Murillo, R. Monroy, E. F. Aguilera, R. Policroniades, E. Chávez, M.E. Ortiz, L. Barrón-Palos, and A. Huerta

Subjects
Nuclear physics, Nuclear reaction, Physics, Nuclear and High Energy Physics, Range (particle radiation), Nucleosynthesis, Excited state, Gamma ray, Nuclear fusion, Center of mass, Atomic physics, Stellar evolution
Abstract

The 12 C + 12 C fusion reaction has been studied in the center-of-mass energy range of 2.25 to 6.01 MeV. Through the detection of gamma rays from the first excited states of the residual nuclei 20 Ne, 23 Na and 23 Mg, absolute cross sections for the 12 C( 12 C, α ), 12 C( 12 C, p) and 12 C( 12 C, n) reactions have been obtained. In this new measurement, the energy dependence of the S -factor is found to increase as the energy decreases below 3 MeV in the center of mass. This tendency was observed in previous measurements by Mazarakis et al., and has since then become a subject of controversy. In this work, where the cross sections are measured at even lower energies, we confirm the rise in the S -factor toward the energy region relevant for star evolution and nucleosynthesis calculations ( E c . m . = 1 – 3 MeV ).

Published
2006
Full Text
View/download PDF

18. The yield of air fluorescence induced by electrons

Author

A. Castellanos, Francisco J. Blanco, M.E. Ortiz, Jaime Rosado, and F. Arqueros

Subjects
Physics, Quenching (fluorescence), Astrophysics (astro-ph), FOS: Physical sciences, chemistry.chemical_element, Astronomy and Astrophysics, Electron, Stopping power, Astrophysics, Nitrogen, Secondary electrons, chemistry, Ionization, Excited state, Yield (chemistry), Atomic physics
Abstract

The fluorescence yield for dry air and pure nitrogen excited by electrons is calculated using a combination of well-established molecular properties and experimental data of the involved cross sections. Particular attention has been paid to the role of secondary electrons from ionization processes. At high pressure and high energy, observed fluorescence turns out to be proportional to the ionization cross section which follows the Born-Bethe law. Predictions on fluorescence yields in a very wide interval of electron energies (eV - GeV) and pressures (1 and 1013 hPa) as expected from laboratory measurements are presented. Experimental results at energies over 1 MeV are in very good agreement with our calculations for pure nitrogen while discrepancies of about 20% are found for dry air, very likely associated to uncertainties in the available data on quenching cross sections. The relationship between fluorescence emission, stopping power and deposited energy is discussed., Comment: 27 pages, 12 figures, 64 references. Accepted in Astroparticle Physics

Published
2006
Full Text
View/download PDF

19. Radiative Lifetimes and Transition Probabilities of Astrophysical Interest in Zr II

Author

G. Malcheva, Krastan B. Blagoev, Pascal Quinet, R. Mayo, M.E. Ortiz, Emile Biémont, Huailiang Xu, and Sune Svanberg

Subjects
Physics, Space and Planetary Science, Metastability, Radiative transfer, Astronomy and Astrophysics, Methods laboratory, Atomic physics, Ground state, Polarization (waves), Laser-induced fluorescence, Excitation, Atomic data
Abstract

Radiative lifetimes of 16 odd levels belonging to the 4d(2)5p configuration of Zr II have been measured using a time-resolved laser-induced fluorescence technique with a single-step excitation process either from the ground state or from metastable levels belonging to the 4d(2)5s and 4d(3) configurations. For 12 levels, there were no previous results available. The new experimental results and the lifetime values available in the literature have allowed to test a theoretical relativistic Hartree-Fock (HFR) model including core-polarization effects and to deduce transition probabilities for 242 transitions of astrophysical interest in the range 187.8-535.0 nm.

Published
2006
Full Text
View/download PDF

20. Radiative parameters for some transitions in the spectrum of Ag ii

Author

José Gregorio Soto Campos, K. Blagoev, M.E. Ortiz, Emile Biémont, G. Malcheva, Pascal Quinet, and R. Mayo

Subjects
Physics, business.industry, Branching fraction, Astronomy and Astrophysics, Plasma, Grating, Configuration interaction, Ion, law.invention, Optics, Deuterium, Space and Planetary Science, law, Radiative transfer, Atomic physics, business, Monochromator
Abstract

Radiative parameters for transitions depopulating the levels belonging to the 4d 8 5s 2 , 4d 9 6s and 4d 9 5d configurations of Ag II have been obtained from a combination of theoretical lifetimes and experimental branching fractions. On the experimental side, a laser-produced plasma was used as a source of Ag + ions. The light emitted by the plasma was analysed by a grating monochromator coupled with a time-resolved optical multichannel analyser system. Spectral response calibration of the experimental system was performed using a deuterium lamp in the wavelength range from 200 to 400 nm, and a standard tungsten lamp in the range from 350 to 600 nm. The transition probabilities were obtained from measured branching ratios and theoretical radiative lifetimes of the corresponding states calculated with a relativistic Hartree-Fock approach including core-polarization effects and configuration interaction in an extensive way. Theoretical and experimental data have been compared and the new data have also been compared with the few previous results available in the literature.

Published
2005
Full Text
View/download PDF

21. Measurement of the Stark broadening for several lines of singly ionized gold

Author

M.E. Ortiz and R. Mayo

Subjects
Physics, Electron density, Argon, chemistry.chemical_element, Plasma, Saha ionization equation, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, symbols.namesake, chemistry, Stark effect, Physics::Plasma Physics, symbols, Atomic physics, Homogeneous broadening, Helium, Doppler broadening
Abstract

The Stark broadening parameters of 26 lines of Au II have been measured in a plasma produced by ablation of a gold target with a Nd:YAG laser. In order to obtain suitable experimental conditions for the homogeneity and stability of the plasma, a study of the temporal plasma evolution in helium, argon and nitrogen at different pressures was made. The broadening parameters were obtained with the gold target placed in molecular argon at 6.5 Torr, which provides appropriate measurement conditions. A Boltzmann plot was used to obtain the plasma temperature [16 200 ± 1400 K] and by means of the Saha equation the electron density [(1.45 ± 0.23) × 1017 cm−3] and the plasma composition were determined. The local thermodynamic equilibrium condition was checked. Contributions to broadening arising from a mechanism different from the Stark broadening as well as self-absorption influence were estimated for every studied line.

Published
2005
Full Text
View/download PDF

22. Experimental oscillator strengths of Zn II lines of astrophysical interest

Author

R. Mayo, José Gregorio Soto Campos, and M.E. Ortiz

Subjects
Physics, Work (thermodynamics), Optical measurements, Alloy, Optical physics, Plasma, engineering.material, Atomic and Molecular Physics, and Optics, symbols.namesake, Boltzmann constant, symbols, engineering, Atomic physics, Absolute scale
Abstract

Relative transition probabilities for 18 lines of Zn II (11 measured for the first time) were determined from the emission-line intensities in a laser-produced plasma. The experiment was carried out using Cd–Zn alloy with a Zn content under 10% in order to obtain optically thin plasma. Oscillator strengths were placed on an absolute scale by using experimental lifetimes, line-strength sum rules and Boltzmann plot. A comparison has been conducted between present experimental results, the data available and new calculations reported in this work, as well as a study of the plasma conditions.

Published
2005
Full Text
View/download PDF

23. Experimental transition probabilities for lines arising from the 4d5p and 4d5d configurations of ZrIII

Author

M.E. Ortiz, José Gregorio Soto Campos, and R. Mayo

Subjects
Physics, symbols.namesake, Radiation, Boltzmann constant, symbols, Plasma, Self-absorption, Atomic physics, Absolute scale, Spectroscopy, Atomic and Molecular Physics, and Optics, Plot (graphics)
Abstract

Relative transition probabilities for 120 lines arising from the 4d5p and 4d5d configurations of ZrIII were determined from measurements of emission-line intensities in a laser-produced plasma. The experiment was carried out with Cu–Zr alloy with a Zr content lower than 13% in order to have an optically thin plasma. Transition probabilities were placed on an absolute scale by using theoretical lifetimes, line-strength sum rules and Boltzmann plot. Comparison of the present experimental results with the available theoretical data is made.

Published
2005
Full Text
View/download PDF

24. Transition Probabilities of Some High Lying States of Cd II

Author

M.E. Ortiz, R. Mayo, Krastan B. Blagoev, G. Malcheva, and José Gregorio Soto Campos

Subjects
Physics, Branching fraction, Plasma, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Spectral line, symbols.namesake, Excited state, Boltzmann constant, symbols, Electron configuration, Atomic physics, Wave function, Absolute scale, Mathematical Physics
Abstract

Experimental transition probabilities for 38 transitions with origin of the 4d106p, 7p, 8p, 4f, 5f and 4d95s5p electron configurations of Cd II have been measured. Relative values of the spectral line intensities have been determined in a laser-produced plasma. The experiment was carried out with pure cadmium target as well as with several Zn-Cd alloys, where the Cd content was lower than 10%. Theoretical lifetime values of Cd II excited states have been obtained in this work using Hartree-Fock wavefunctions and multiconfiguration mixing in an intermediate coupling in order to place the experimental data of branching ratio in an absolute scale. The Boltzmann plot and plasma temperature in LTE conditions is also used for obtaining the absolute transition probabilities. Comparison of the present experimental and theoretical results with the previously published data has been made.

Published
2005
Full Text
View/download PDF

25. Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth

Author

Adrian J. Matthews, L. Molina-Bueno, D. Melo, David Walz, F. Suarez, Thomas Hebbeker, Sergio Dasso, T. Huege, A. Parra, Jeffrey Brack, Olaf Scholten, V. Pirronello, Humberto Ibarguen Salazar, F. Gate, Iuri Muniz Pepe, L. Tomankova, G. Navarra, C. A. Moura, T. Yamamoto, Brian Fick, Samo Stanič, van den Ad M Berg, C. Jarne, M. Prouza, J. Kleinfeller, A. Aab, L. Caramete, R. Mussa, J. J. Beatty, D. Pakk Selmi-Dei, R. Sato, A. C. Fauth, Kai Daumiller, Peter Schiffer, B. Vlcek, H. Dembinski, N. Fazzini, L. del Peral, P. Abreu, M. S. A. B. Leão, H. Lyberis, E.M. Holt, D. Ravignani, A. Saleh, Maria-Teresa Dova, R. Alves Batista, D. Kruppke-Hansen, O. Ravel, G. Yuan, Matias Tueros, D. Nosek, Johannes Schulz, A. van Vliet, V. Scherini, Carla Bonifazi, Jose A. Bellido, Daniel Kuempel, Carlos Escobar, S. Maldera, M. Pimenta, F. Diogo, M. Videla, G. Cocciolo, Luis A. Anchordoqui, Marcio Aparecido Muller, D. Maurizio, Richard Dallier, A. Nelles, B. Revenu, Sarka Wykes, Jaime Alvarez-Muñiz, Jing Zhou, J. C. Diaz, M. Risse, Julien Aublin, Alexandra Saftoiu, Jaime Rosado, Ivone F. M. Albuquerque, Ke Fang, M. Zimbres Silva, O. Kambeitz, R. M. de Almeida, F. Werner, Markus Ahlers, S. Riggi, T. Rossler, Eric Mayotte, M. Ave, M. Gómez Berisso, S. J. De Jong, Octavian Fratu, B. Wilczynska, J. D. Swain, E. Varela, T. Suomijaervi, N. Griffith, Lu Lu, N. T. Thao, J. Maller, S. J. Saffi, U. Froehlich, R. Cester, M. Avenier, J. Stapleton, M. Zavrtanik, B. Vargas Cárdenas, J. Pallotta, N. Kunka, G. Marsella, J. R. Vázquez, D. Garcia-Gamez, E. J. Quel, Michael Unger, M. Platino, M. Monasor, Iván Sidelnik, N. Scharf, P. Sanchez-Lucas, D. Harari, M. Buscemi, A. Curutiu, A. Lopez Agueera, A. Kaeaepae, M. Palatka, A. Insolia, M. Kleifges, D. Zavrtanik, I. A. Minaya, P. Heimann, R. C. Shellard, W. Docters, M. Will, K. Louedec, Mariangela Settimo, Ugo Giaccari, B. Keilhauer, Béatrice Fuchs, P. W. Younk, Niraj Dhital, M. Hrabovsky, Alexey Yushkov, Jörg R. Hörandel, G. Garilli, E. Kemp, Serguei Vorobiov, C. Hojvat, Francisco J. Blanco, Jan Ebr, J. Allen, S. J. Sciutto, R. Pesce, A. Weindl, I. Valiño, Xavier Bertou, V. Purrello, Paul Sommers, L. Nellen, Max Malacari, Markus Lauscher, A. Zepeda, A. Filevich, Alina Mihaela Badescu, A. Smialkowski, Dusan Mandat, Raul Sarmento, F. Gomez Albarracin, P. Gouffon, P. N. Dong, D. Monnier Ragaigne, O. A. Taborda, Piotr Homola, M. J. Cooper, John N. Matthews, C. Morello, R. M. Kieckhafer, Juan Moreno, J. Rautenberg, Yingchun Zhu, I. Al Samarai, J. Neuser, F. Salamida, Pedro Assis, G. Matthiae, F. Sánchez, P. Facal San Luis, A. Etchegoyen, M. Josebachuili, C. J. Todero Peixoto, A. Schmidt, H.O. Klages, H. Martinez, Lorenzo Caccianiga, V. M. Theodoro, M. Ambrosio, Antonio Bueno, A. Petrolini, S. Le Coz, Carlos Medina, M. De Domenico, G. Parente, I. Lhenry-Yvon, Libor Nozka, Javier Tiffenberg, Sergio Pastor, Sasa Micanovic, O. Wainberg, D. Nitz, J. R. T. de Mello Neto, H. Bluemer, A. Gorgi, Y. Guardincerri, S. Messina, N. Krohm, C. J.W.P. Timmermans, M. Muenchmeyer, A. P. Ferguson, Peter L. Biermann, Petr Schovanek, Esteban Roulet, Jan Pękala, A. Chiavassa, G. S. Varner, Hernan Wahlberg, L. Ochilo, N. Hollon, V. Verzi, B. Sarkar, B. Tome, H. Schoorlemmer, A. E. Herve, K. B. Barber, S. Jansen, E. Petermann, Gualberto Avila, B. García, Tobias Winchen, P. Lebrun, Christian Glaser, A. Criss, Miroslav Pech, Guenter Sigl, R. López, Karen S. Caballero-Mora, Paolo Privitera, L. R. Wiencke, D. Martraire, Lukas Middendorf, Christine Peters, Ingomar Allekotte, N. Palmieri, J. Espadanal, Corinne Berat, M. Giller, W. C. Brown, K. Link, R. R. Prado, M. C. Maccarone, A. Dorofeev, Darko Veberič, Pavel Horvath, A. Menshikov, L. Latronico, G. Torralba Elipe, R. Krause, Maria Rita Coluccia, Yogendra N. Srivastava, M. I. Micheletti, M. Ludwig, C. E. Santo, Angela V. Olinto, M. Urban, R. J. Lauer, H. Wilczyński, P. Billoir, M. S. Sutherland, J. de Oliveira, A. C. Rovero, L. Valore, S. Navas, Martin Erdmann, M. Melissas, Igor Katkov, J. F. Valdés Galicia, P. Ristori, Amin Aminaei, C. Bleve, C. Aramo, K. Weidenhaupt, Rúben Conceição, R. A. Vázquez, A. Filipčič, I. De Mitri, A. Gascon Bravo, S. Grebe, A. Haungs, Eun-Joo Ahn, L. Villaseñor, I. Rodriguez Cabo, Alberto Daniel Supanitsky, J. L. Harton, V. Marin, Pham Ngoc Diep, C. Di Giulio, Q. Dorosti Hasankiadeh, Paulo J. S. Gonçalves, F. Sarazin, L. Martin, M. Oliveira, Balázs Kégl, G. P. Guedes, S. Petrera, Marc Weber, S. T. Garcia Roca, Sofia Andringa, Marco Cilmo, Philipp Papenbreer, I. Zaw, G. Rodriguez Fernandez, B. Mitrica, Heino Falcke, R. Squartini, François Montanet, Petr Travnicek, Vincenzo Rizi, H. J. Mathes, D. Martello, Bruno Daniel, Alejandro Almela, P. Mantsch, T. Paul, Z. Szadkowski, S. van Velzen, K. H. Becker, M.E. Ortiz, B. Caccianiga, J. Vicha, Trent D. Grubb, Hernán Asorey, T. Yapici, J. J. Masías Meza, D. Huber, M. Ziolkowski, D. Maurel, Roger W Clay, Silvia Mollerach, O. Martínez Bravo, Juan Manuel Figueira, M. A. Leigui de Oliveira, Marco Giammarchi, Roberta Colalillo, J. Rodriguez Rojo, R. Bonino, A. Shadkam, I. Jandt, A. G. Mariazzi, Markus Roth, E. Menichetti, R. Gaior, A. G. Chavez, Enrique Zas, B. Zamorano, Ralf Ulrich, A. Porcelli, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, Peter Hansen, Azadeh Keivani, Fernando Contreras, G. Medina-Tanco, Carola Dobrigkeit, M. Plum, G. van Aar, P. L. Ghia, F. Guarino, J. Lozano Bahilo, A. Tapia, D. Garcia-Pinto, Alan Watson, W. Rodrigues de Carvalho, Peter Buchholz, H. Gemmeke, Paula Gina Isar, Pedro Brogueira, F. Salesa Greus, J. Alvarez Castillo, M. Tartare, J. W. Cronin, M. L. Díaz Castro, G. Farrar, M. Szuba, I.M. Brancus, R. Piegaia, S. Quinn, G. Toma, H. Glass, Marco Aglietta, A. Segreto, G. Cataldi, Nataliia Borodai, K. Islo, Radomir Smida, G. Mueller, Maurice Stephan, Corbin Covault, Y. Petrov, A. Schulz, E. Trovato, A. Tonachini, V. de Souza, A. Di Matteo, Lino Miramonti, J. Baeuml, B. Gookin, C. Ruehle, P.F. Gómez Vitale, B. Wundheiler, M. Blanco, M. D. Rodríguez-Frías, Gregory R Snow, E. M. Santos, S. H. Cheng, Bruce R. Dawson, P.O. Mazur, Marcus Niechciol, R. Pelayo, P. H. Kasper, B. J. Whelan, S. Querchfeld, L. Niemietz, Miguel Mostafá, Ioana Codrina Maris, N. Pacheco, J. Roberts, Tim Niggemann, J. Stasielak, S. Coutu, Christopher B. Williams, G. C. Hill, Colin Baus, Ralph Engel, J. Ridky, C. Porowski, H. Schieler, A. Stutz, M. Fernandes, Karl-Heinz Kampert, E. Santos, Antonella Castellina, Denise Boncioli, German Ros, O. Kroemer, Jose Chinellato, P. Lautridou, A. Widom, A. Letessier-Selvon, Lorenzo Cazon, David Wittkowski, G. Salina, Danielle LaHurd, Olivier Deligny, R. Meyhandan, T. Fuji, Martina Bohacova, Patrick Allison, J. Sorokin, B. D. Fox, V. Novotny, Rossella Caruso, A. Lucero, G. La Rosa, S. Mathys, M. Erfani, Octavian Sima, J. G. Gonzalez, D. Lebrun, D. Heck, M. Candusso, Peter Gorham, L. Collica, L. Perrone, Jiri Chudoba, D. Torres Machado, Thomas Harrison, P. Pieroni, F. Arqueros, P. Necesal, Research unit Astroparticle Physics, A. Aab, P. Abreu, M. Aglietta, M. Ahler, E. Ahn, I. A. Samarai, I. Albuquerque, I. Allekotte, J. Allen, P. Allison, A. l. Almela, J. A. Castillo, J. Alvarez-Muñiz, R. A. Batista, M. Ambrosio, A. Aminaei, L. s. Anchordoqui, S. Andringa, C. Aramo, F. Arquero, H. Asorey, P. Assi, J. Aublin, M. Ave, M. Avenier, G. Avila, A. Badescu, K. Barber, J. Bäuml, C. Bau, J. Beatty, K. Becker, J. Bellido, C. Berat, X. Bertou, P. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. a. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancu, P. Brogueira, W. Brown, P. Buchholz, A. Bueno, M. Buscemi, K. a. am, B. Caccianiga, L. Caccianiga, M. Candusso, L. Caramete, R. Caruso, A. Castellina, G. Cataldi, L. Cazon, R. Cester, A. Chavez, S. Cheng, A. Chiavassa, J. Chinellato, J. Chudoba, M. Cilmo, R. Clay, G. Cocciolo, R. Colalillo, L. Collica, M. Coluccia, R. Conceição, F. Contrera, M. Cooper, S. Coutu, C. Covault, A. Cri, J. Cronin, A. Curutiu, R. a. Dallier, B. Daniel, S. b. Dasso, K. Daumiller, B. Dawson, R. D. Almeida, M. D. Domenico, S. b. De, J. D. Mello, I. D. Mitri, J. D. Oliveira, V. D. Souza, L. D. Peral, O. Deligny, H. Dembinski, N. Dhital, C. D. Giulio, A. D. Matteo, J. Diaz, M. D. Castro, P. Diep, F. Diogo, C. Dobrigkeit, W. Docter, J. D'Olivo, P. b. Dong, A. Dorofeev, Q. D. Hasankiadeh, M. Dova, J. Ebr, R. Engel, M. Erdmann, M. Erfani, C. a. Escobar, J. Espadanal, A. l. Etchegoyen, P. F. San, H. b. bl, K. Fang, G. Farrar, A. Fauth, N. Fazzini, A. Ferguson, M. Fernande, B. Fick, J. Figueira, A. Filevich, A. b. Filipčič, B. Fox, O. Fratu, U. Fröhlich, B. Fuch, T. Fuji, R. Gaior, B. García, S. G. Roca, D. Garcia-Gamez, D. Garcia-Pinto, G. Garilli, A. G. Bravo, F. Gate, H. Gemmeke, P. Ghia, U. Giaccari, M. Giammarchi, M. Giller, C. Glaser, H. Gla, F. G. Albarracin, M. G. Berisso, P. G. Vitale, P. Gonçalve, J. Gonzalez, B. Gookin, A. Gorgi, P. Gorham, P. Gouffon, S. b. Grebe, N. Griffith, A. Grillo, T. Grubb, Y. Guardincerri, F. Guarino, G. Guede, P. Hansen, D. Harari, T. Harrison, J. Harton, A. Haung, T. Hebbeker, D. Heck, P. Heimann, A. Herve, G. Hill, C. Hojvat, N. Hollon, E. Holt, P. a. Homola, J. b. Hörandel, P. Horvath, M. b. Hrabovský, D. Huber, T. Huege, A. Insolia, P. Isar, K. Islo, I. Jandt, S. b. Jansen, C. Jarne, M. Josebachuili, A. Kääpä, O. Kambeitz, K. Kampert, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, E. Kemp, R. Kieckhafer, H. Klage, M. Kleifge, J. Kleinfeller, R. Krause, N. Krohm, O. Krömer, D. Kruppke-Hansen, D. Kuempel, N. Kunka, G. L. Rosa, D. Lahurd, L. Latronico, R. Lauer, M. Lauscher, P. Lautridou, S. L. Coz, M. Leão, D. Lebrun, P. Lebrun, M. L. De, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. L. Agüera, K. Louedec, J. L. Bahilo, L. c. Lu, A. Lucero, M. Ludwig, H. Lyberi, M. Maccarone, M. Malacari, S. Maldera, J. Maller, D. Mandat, P. Mantsch, A. Mariazzi, V. Marin, I. Mariş, G. Marsella, D. Martello, L. a. Martin, H. Martinez, O. M. Bravo, D. Martraire, J. M. Meza, H. Mathe, S. Mathy, A. Matthew, J. Matthew, G. Matthiae, D. Maurel, D. Maurizio, E. Mayotte, P. Mazur, C. Medina, G. Medina-Tanco, M. Melissa, D. Melo, E. Menichetti, A. Menshikov, S. Messina, R. Meyhandan, S. Mićanović, M. Micheletti, L. Middendorf, I. Minaya, L. Miramonti, B. Mitrica, L. Molina-Bueno, S. Mollerach, M. Monasor, D. M. Ragaigne, F. Montanet, C. Morello, J. Moreno, M. Mostafá, C. Moura, M. c. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra, S. Nava, P. Necesal, L. Nellen, A. b. Nelle, J. Neuser, M. Niechciol, L. Niemietz, T. Niggemann, D. Nitz, D. Nosek, V. Novotny, L. NoŽka, L. Ochilo, A. Olinto, M. Oliveira, M. Ortiz, N. Pacheco, D. P. Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, P. Papenbreer, G. Parente, A. Parra, S. Pastor, T. c. Paul, M. Pech, J. Pkala, R. Pelayo, I. Pepe, L. Perrone, R. Pesce, E. Petermann, C. Peter, S. c. Petrera, A. Petrolini, Y. Petrov, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, A. Porcelli, C. Porowski, R. Prado, P. Privitera, M. Prouza, V. Purrello, E. Quel, S. Querchfeld, S. Quinn, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. b. Riggi, M. Risse, P. Ristori, V. Rizi, J. Robert, W. R. De, I. R. Cabo, G. a. Rodriguez, J. R. Rojo, M. Rodríguez-Fría, G. Ro, J. Rosado, T. Rossler, M. Roth, E. Roulet, A. Rovero, C. Rühle, S. Saffi, A. Saftoiu, F. Salamida, H. Salazar, A. Saleh, F. S. Greu, G. Salina, F. Sánchez, P. Sanchez-Luca, C. Santo, E. Santo, F. Sarazin, B. Sarkar, R. Sarmento, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, O. Scholten, H. b. bo, P. Schovánek, A. Schulz, J. Schulz, S. Sciutto, A. Segreto, M. Settimo, A. Shadkam, R. Shellard, I. Sidelnik, G. Sigl, O. Sima, A. Śmiałkowski, R. Šmída, G. Snow, P. Sommer, J. Sorokin, R. Squartini, Y. Srivastava, S. Stanič, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, T. Suomijärvi, A. Supanitsky, M. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, O. Taborda, A. Tapia, M. Tartare, N. Thao, V. Theodoro, J. Tiffenberg, C. b. Timmerman, C. T. Peixoto, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, G. T. Elipe, D. T. Machado, P. Travnicek, E. Trovato, M. Tuero, R. Ulrich, M. Unger, M. Urban, J. V. Galicia, I. Valiño, L. Valore, G. V. Aar, A. V. Den, S. V. Velzen, A. V. Vliet, E. Varela, B. V. Cárdena, G. Varner, J. Vázquez, R. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, B. Vlcek, S. Vorobiov, H. Wahlberg, O. l. Wainberg, D. Walz, A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, B. Whelan, A. Widom, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. William, T. Winchen, D. Wittkowski, B. Wundheiler, S. Wyke, T. Yamamoto, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano, E. Za, D. b. Zavrtanik, M. b. Zavrtanik, I. Zaw, A. Zepeda, J. Zhou, Y. Zhu, M. Z. Silva, M. Ziolkowski, Unité Scientifique de la Station de Nançay ( USN ), Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire SUBATECH Nantes ( SUBATECH ), Mines Nantes ( Mines Nantes ) -Université de Nantes ( UN ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de l'Accélérateur Linéaire ( LAL ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Subatomique et de Cosmologie ( LPSC ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Institut de Physique Nucléaire d'Orsay ( IPNO ), PIERRE AUGER, ANR-11-IDEX-0004-02/10-LABX-0063,ILP,Institute Lagrange of Paris ( 2011 ), ANR-11-IDEX-0004-02/11-IDEX-0004,SUPER,SUPER ( 2011 ), ANR-2010-COSI-002 (SIMINOLE),ANR-2010-COSI-002 (SIMINOLE), European Project : 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET ( 2011 ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), ANR-11-IDEX-0004,SUPER,Sorbonne Universités à Paris pour l'Enseignement et la Recherche(2011), ANR-10-COSI-0002,SIMINOLE,Méthodes de simulations pour des applications de grande échelle en physique expérimentale : inférence statistique, optimisation et apprentissage discriminant(2010), European Project: 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET(2011), Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), A., Aab, P., Abreu, M., Aglietta, M., Ahler, E., Ahn, I. A., Samarai, I., Albuquerque, I., Allekotte, J., Allen, P., Allison, A. l., Almela, J. A., Castillo, J., Alvarez Muñiz, R. A., Batista, M., Ambrosio, A., Aminaei, L. s., Anchordoqui, S., Andringa, C., Aramo, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A., Badescu, K., Barber, J., Bäuml, C., Bau, J., Beatty, K., Becker, J., Bellido, C., Berat, X., Bertou, P., Biermann, P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H. a., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W., Brown, P., Buchholz, A., Bueno, M., Buscemi, K. a., Am, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A., Chavez, S., Cheng, A., Chiavassa, J., Chinellato, J., Chudoba, M., Cilmo, R., Clay, Cocciolo, Giuseppe, R., Colalillo, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, M., Cooper, S., Coutu, C., Covault, A., Cri, J., Cronin, A., Curutiu, R. a., Dallier, B., Daniel, S. b., Dasso, K., Daumiller, B., Dawson, R. D., Almeida, M. D., Domenico, S. b., De, J. D., Mello, DE MITRI, Ivan, J. D., Oliveira, V. D., Souza, L. D., Peral, O., Deligny, H., Dembinski, N., Dhital, C. D., Giulio, A. D., Matteo, J., Diaz, M. D., Castro, P., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J., D'Olivo, P. b., Dong, A., Dorofeev, Q. D., Hasankiadeh, M., Dova, J., Ebr, R., Engel, M., Erdmann, M., Erfani, C. a., Escobar, J., Espadanal, A. l., Etchegoyen, P. F., San, H. b., Bl, K., Fang, G., Farrar, A., Fauth, N., Fazzini, A., Ferguson, M., Fernande, B., Fick, J., Figueira, A., Filevich, A. b., Filipčič, B., Fox, O., Fratu, U., Fröhlich, B., Fuch, T., Fuji, R., Gaior, B., García, S. G., Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A. G., Bravo, F., Gate, H., Gemmeke, P., Ghia, U., Giaccari, M., Giammarchi, M., Giller, C., Glaser, H., Gla, F. G., Albarracin, M. G., Berisso, P. G., Vitale, P., Gonçalve, J., Gonzalez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S. b., Grebe, N., Griffith, A., Grillo, T., Grubb, Y., Guardincerri, F., Guarino, G., Guede, P., Hansen, D., Harari, T., Harrison, J., Harton, A., Haung, T., Hebbeker, D., Heck, P., Heimann, A., Herve, G., Hill, C., Hojvat, N., Hollon, E., Holt, P. a., Homola, J. b., Hörandel, P., Horvath, M. b., Hrabovský, D., Huber, T., Huege, A., Insolia, P., Isar, K., Islo, I., Jandt, S. b., Jansen, C., Jarne, M., Josebachuili, A., Kääpä, O., Kambeitz, K., Kampert, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, E., Kemp, R., Kieckhafer, H., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G. L., Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S. L., Coz, M., Leão, D., Lebrun, P., Lebrun, M. L., De, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A. L., Agüera, K., Louedec, J. L., Bahilo, L. c., Lu, A., Lucero, M., Ludwig, H., Lyberi, M., Maccarone, M., Malacari, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A., Mariazzi, V., Marin, I., Mariş, Marsella, Giovanni, Martello, Daniele, L. a., Martin, H., Martinez, O. M., Bravo, D., Martraire, J. M., Meza, H., Mathe, S., Mathy, A., Matthew, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P., Mazur, C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mićanović, M., Micheletti, L., Middendorf, I., Minaya, L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D. M., Ragaigne, F., Montanet, C., Morello, J., Moreno, M., Mostafá, C., Moura, M. c., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, S., Nava, P., Necesal, L., Nellen, A. b., Nelle, J., Neuser, M., Niechciol, L., Niemietz, T., Niggemann, D., Nitz, D., Nosek, V., Novotny, L., Nožka, L., Ochilo, A., Olinto, M., Oliveira, M., Ortiz, N., Pacheco, D. P., Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, P., Papenbreer, G., Parente, A., Parra, S., Pastor, T. c., Paul, M., Pech, J., Pkala, R., Pelayo, I., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, C., Peter, S. c., Petrera, A., Petrolini, Y., Petrov, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, A., Porcelli, C., Porowski, R., Prado, P., Privitera, M., Prouza, V., Purrello, E., Quel, S., Querchfeld, S., Quinn, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S. b., Riggi, M., Risse, P., Ristori, V., Rizi, J., Robert, W. R., De, I. R., Cabo, G. a., Rodriguez, J. R., Rojo, M., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, E., Roulet, A., Rovero, C., Rühle, S., Saffi, A., Saftoiu, F., Salamida, H., Salazar, A., Saleh, F. S., Greu, G., Salina, F., Sánchez, P., Sanchez Luca, C., Santo, E., Santo, F., Sarazin, B., Sarkar, R., Sarmento, R., Sato, N., Scharf, Scherini, Viviana, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H. b., Bo, P., Schovánek, A., Schulz, J., Schulz, S., Sciutto, A., Segreto, M., Settimo, A., Shadkam, R., Shellard, I., Sidelnik, G., Sigl, O., Sima, A., Śmiałkowski, R., Šmída, G., Snow, P., Sommer, J., Sorokin, R., Squartini, Y., Srivastava, S., Stanič, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A., Supanitsky, M., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, O., Taborda, A., Tapia, M., Tartare, N., Thao, V., Theodoro, J., Tiffenberg, C. b., Timmerman, C. T., Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, G. T., Elipe, D. T., Machado, P., Travnicek, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. V., Galicia, I., Valiño, L., Valore, G. V., Aar, A. V., Den, S. V., Velzen, A. V., Vliet, E., Varela, B. V., Cárdena, G., Varner, J., Vázquez, R., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, B., Vlcek, S., Vorobiov, H., Wahlberg, O. l., Wainberg, D., Walz, A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, B., Whelan, A., Widom, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D. b., Zavrtanik, M. b., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M. Z., Silva, M., Ziolkowski, Ahn, E. ?. J., I., Al Samarai, Albuquerque, I. ?. F. ?. M., A., Almela, J., Alvarez Castillo, J., Alvarez Mu?iz, R., Alves Batista, L., Anchordoqui, Aramo, Carla, Badescu, A. ?. M., Barber, K. ?. B., J., B?uml, Beatty, J. ?. J., Becker, K. ?. H., Bellido, J. ?. A., Biermann, P. ?. L., C., Bleve, H., Bl?mer, M., Boh??ov?, Brown, W. ?. C., Buscemi, Mario, Caballero Mora, K. ?. S., Chavez, A. ?. G., Cheng, S. ?. H., Chinellato, J. ?. A., Cilmo, Marco, Clay, R. ?. W., G., Cocciolo, Colalillo, Roberta, Coluccia, M. ?. R., R., Concei??o, Cooper, M. ?. J., Covault, C. ?. E., R., Dallier, S., Dasso, Dawson, B. ?. R., de Almeida, R. ?. M., M., De Domenico, de Jong, S. ?. J., de Mello Neto, J. ?. R. ?. T., I., De Mitri, J., de Oliveira, V., de Souza, L., del Peral, C., Di Giulio, A., Di Matteo, Diaz, J. ?. C., D?az Castro, M. ?. L., Diep, P. ?. N., D?olivo, J. ?. C., Dong, P. ?. N., Q., Dorosti Hasankiadeh, Dova, M. ?. T., Escobar, C. ?. O., A., Etchegoyen, P., Facal San Lui, H., Falcke, Fauth, A. ?. C., Ferguson, A. ?. P., Figueira, J. ?. M., A., Filip?i?, Fox, B. ?. D., U., Fr?hlich, B., Garc?a, Garcia Roca, S. ?. T., A., Gascon Bravo, Ghia, P. ?. L., F., Gomez Albarracin, M., G?mez Berisso, G?mez Vitale, P. ?. F., P., Gon?alve, Gonzalez, J. ?. G., S., Grebe, Grillo, A. ?. F., Grubb, T. ?. D., Guarino, Fausto, Guedes, G. ?. P., Harrison, T. ?. A., Harton, J. ?. L., Herve, A. ?. E., Hill, G. ?. C., P., Homola, H?randel, J. ?. R., M., Hrabovsk?, Isar, P. ?. G., S., Jansen, A., K??p?, Kampert, K. ?. H., B., K?gl, Kieckhafer, R. ?. M., Klages, H. ?. O., O., Kr?mer, G., La Rosa, S., Le Coz, Le?o, M. ?. S. ?. A. ?. B., Leigui de Oliveira, M. ?. A., R., L?pez, A., Lopez Ag?era, J., Lozano Bahilo, L., Lu, Maccarone, M. ?. C., Mariazzi, A. ?. G., Mari?, I. ?. C., G., Marsella, D., Martello, L., Martin, O., Mart?nez Bravo, Mas?as Meza, J. ?. J., Mathes, H. ?. J., Matthews, A. ?. J., Mazur, P. ?. O., S., Mi?anovi?, Micheletti, M. ?. I., Minaya, I. ?. A., D., Monnier Ragaigne, Moreno, J. ?. C., M., Mostaf?, Moura, C. ?. A., Muller, M. ?. A., G., M?ller, M., M?nchmeyer, A., Nelle, L., No?ka, D., Pakk Selmi Dei, T., Paul, J., P?kala, Pepe, I. ?. M., L., Perrone, S., Petrera, Prado, R. ?. R., Quel, E. ?. J., S., Riggi, W., Rodrigues de Carvalho, I., Rodriguez Cabo, G., Rodriguez Fernandez, J., Rodriguez Rojo, Rodr?guez Fr?as, M. ?. D., Rovero, A. ?. C., C., R?hle, Saffi, S. ?. J., F., Salesa Greu, F., S?nchez, Santo, C. ?. E., Santos, E. ?. M., V., Scherini, H., Schoorlemmer, P., Schov?nek, Sciutto, S. ?. J., Shellard, R. ?. C., A., ?mia?kowski, R., ?m?da, Snow, G. ?. R., Srivastava, Y. ?. N., S., Stani?, T., Suomij?rvi, Supanitsky, A. ?. D., Sutherland, M. ?. S., Taborda, O. ?. A., Thao, N. ?. T., Theodoro, V. ?. M., C., Timmerman, Todero Peixoto, C. ?. J., B., Tom?, G., Torralba Elipe, D., Torres Machado, Galicia, J. ?. F. Vald?s., I., Vali?o, Valore, Laura, G., van Aar, van den Berg, A. ?. M., S., van Velzen, A., van Vliet, B., Vargas C?rdena, V?zquez, J. ?. R., V?zquez, R. ?. A., D., Veberi?, L., Villase?or, O., Wainberg, Watson, A. ?. A., Whelan, B. ?. J., B., Wilczy?ska, H., Wilczy?ski, D., Zavrtanik, M., Zavrtanik, and M., Zimbres Silva

Subjects
Astrofísica, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astronomy, Ciencias Físicas, muons, hadronic interaction models, Astrophysics, 01 natural sciences, High Energy Physics - Experiment, Auger, purl.org/becyt/ford/1 [https], High Energy Physics - Experiment (hep-ex), Air showers, Production depth, SURFACE DETECTOR ARRAY, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], High Energy Astrophysical Phenomena (astro-ph.HE), Physics, High-Energy Cosmic Rays, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Detector, Astrophysics::Instrumentation and Methods for Astrophysics, [ SDU.ASTR.IM ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Pierre Auger Observatory, Observable, Instrumentation and Detectors (physics.ins-det), COSMIC-RAYS, longitudinal development, Core (optical fiber), ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Nuclear and High Energy Physics, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Nuclear physics, cosmic rays, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, extensive air showers, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Zenith, Ciencias Exactas, Muon, 010308 nuclear & particles physics, [ PHYS.ASTR.HE ] Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Física, purl.org/becyt/ford/1.3 [https], ASTROFÍSICA, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astronomía, MODEL, Experimental High Energy Physics, High Energy Physics::Experiment, [ SDU.ASTR.HE ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [ PHYS.ASTR.IM ] Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], muonic component, SYSTEM
Abstract

The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timing information from the flash analog-to-digital converter traces of surface detectors far from the shower core, it is possible to reconstruct a muon production depth distribution. We characterize the goodness of this reconstruction for zenith angles around 60° and different energies of the primary particle. From these distributions, we define Xμmax as the depth along the shower axis where the production of muons reaches maximum. We explore the potentiality of Xμmax as a useful observable to infer the mass composition of ultrahigh-energy cosmic rays. Likewise, we assess its ability to constrain hadronic interaction models., La lista completa de autores que integran el documento puede consultarse en el archivo., Facultad de Ciencias Exactas, Instituto de Física La Plata

Published
2014
Full Text
View/download PDF

26. Probing the radio emission from air showers with polarization measurements

Author

Marcus Niechciol, R. Mussa, J. J. Beatty, Alain Hervé, I. M. Pepe, R. Pelayo, H. Dembinski, B. Zamorano, L. del Peral, Johannes Schulz, Maurice Stephan, A. Parra, Jeffrey Brack, Olaf Scholten, O. Ravel, A. van Vliet, Azadeh Keivani, M. Pimenta, Humberto Ibarguen Salazar, P. Lebrun, Julien Aublin, S. Querchfeld, F. Werner, D. Kruppke-Hansen, L. Perrone, Jiri Chudoba, D. Torres Machado, E.M. Holt, Maria-Teresa Dova, A. Tonachini, L. Tomankova, W. J. M. de Mello Junior, G. Navarra, Eric Mayotte, M. Ave, J. Rodriguez Martino, Markus Ahlers, E. Varela, C. A. Moura, T. Yamamoto, Brian Fick, Samo Stanič, N. Griffith, Richard Dallier, Marcio Aparecido Muller, A. Nelles, R. Alves Batista, W. Rodrigues de Carvalho, P. O. Mazur, L. Niemietz, M. Tartare, M. Zimbres Silva, M. Gómez Berisso, R. C. Shellard, W. Docters, N. Pacheco, J. W. Cronin, P. Mantsch, Thomas Harrison, Kai Daumiller, Sarka Wykes, Jaime Alvarez-Muñiz, Jing Zhou, J. Stapleton, I. Zaw, F. Suarez, Thomas Hebbeker, Sergio Dasso, P.F. Gómez Vitale, V. Pirronello, C. Jarne, Tim Niggemann, N. Kunka, P. Pieroni, Lu Lu, J. Roberts, M. Risse, G. Toma, O. Taşcǎu, M. Buscemi, Yingchun Zhu, Octavian Fratu, Nataliia Borodai, F. Arqueros, N. Foerster, N. Scharf, J. PeÂķala, L. Nožka, P. Necesal, B. Vargas Cárdenas, S. Grebe, S. Messina, I. A. Minaya, B. Keilhauer, D. Nosek, Octavian Sima, J. G. Gonzalez, M. Will, E. Kemp, R. Squartini, J. Stasielak, S. Coutu, Jan Ebr, S. J. De Jong, M. Prouza, D. Lebrun, G. Parente, O. Kambeitz, C. Aramo, M. Avenier, T. Paul, M. Palatka, J. Maller, G. S. Varner, Pham Ngoc Diep, Jose Chinellato, D. B. Tridapalli, J. Allen, P. W. Younk, S. J. Sciutto, R. Pesce, K. Link, P. Abreu, D. Heck, T. Suomijärvi, J. Pallotta, E. J. Quel, D. Ravignani, G. Cocciolo, D. Monnier Ragaigne, G. Marsella, P. Lautridou, Rémi Bardenet, A. Curutiu, Petr Travnicek, A. Śmiałkowski, E. Menichetti, A. Weindl, P. Karhan, K. Louedec, Mariangela Settimo, B. Mitrica, Heino Falcke, Trent D. Grubb, D. Huber, J. Vicha, A. Widom, Alexey Yushkov, M. Candusso, Peter Gorham, Luis A. Anchordoqui, D. Martraire, H. Martinez, Kreso Kadija, P. Kasper, H.O. Klages, C. Rühle, Juan Manuel Figueira, Miroslav Hrabovský, G. Medina-Tanco, A. Haungs, J. R. T. de Mello Neto, G. Wieczorek, N. Hollon, V. Verzi, H. R. Marquez Falcon, Alejandro Almela, Roberta Colalillo, A. Schmidt, A. Dorofeev, A. G. Mariazzi, J. L. Harton, G. Matthiae, A. Letessier-Selvon, Béatrice Fuchs, Niraj Dhital, I. Valiño, G. van Aar, S. Jansen, A. P. Ferguson, Alberto Daniel Supanitsky, M. Platino, E. Santos, H. Blümer, Max Malacari, C. Hojvat, Denise Boncioli, B. Rouillé-D'Orfeuil, J. Lozano Bahilo, Segev BenZvi, Piotr Homola, P. Facal San Luis, Antonio Bueno, Sergio Pastor, M. Monasor, D. Nitz, L. Collica, Lorenzo Cazon, J. Knapp, A. Lopez Agüera, C. J. Todero Peixoto, Peter Schiffer, V. Scherini, Alexandra Saftoiu, Lukas Middendorf, Corbin Covault, Y. Petrov, Alberto Filevich, Peter Hansen, Markus Roth, German Ros, M. Videla, A. Aab, L. Caramete, Gualberto Avila, Ingomar Allekotte, Lino Miramonti, A. Chiavassa, A. C. Rovero, C. Bleve, Francisco J. Blanco, K. B. Barber, Z. Szadkowski, M. Oliveira, F. Guarino, John Matthews, Peter Buchholz, Darko Veberič, Igor Katkov, L. Villaseñor, M. Szuba, Dusan Mandat, J. A.J. Matthews, Xavier Bertou, I.M. Brancus, M. Josebachuili, A. Porcelli, N. Krohm, Martina Bohacova, Patrick Allison, B. Sarkar, S. Le Coz, Marco Aglietta, K. Weidenhaupt, M. D. Rodríguez-Frías, Balázs Kégl, Angela V. Olinto, C. Di Giulio, J. Sorokin, L. Martin, G. Rodriguez Fernandez, G. Salina, Danielle LaHurd, Olivier Deligny, Marco Cilmo, J. Gitto, Jörg R. Hörandel, Hernán Asorey, A. Zepeda, Pedro Assis, A. Etchegoyen, Javier Tiffenberg, G. Garilli, J. Neuser, M. S. A. B. Leão, P. T. Nhung, L. R. Wiencke, F. Gomez Albarracin, Vincenzo Rizi, D. Martello, M. Ziolkowski, Silvia Mollerach, O. Martínez Bravo, I. Rodriguez Cabo, F. Diogo, E. Petermann, Miroslav Pech, Christian Glaser, B. D. Fox, J. D. Swain, C. L. Williams, H. M. Spinka, O. Krömer, A. Insolia, M. Kleifges, D. Zavrtanik, J. Espadanal, H. Wilczyński, P. Billoir, Pavel Horvath, B. J. Whelan, Miguel Mostafá, M. S. Sutherland, G. Yuan, Matias Tueros, A. Gorgi, G. Farrar, R. Meyhandan, I. C. Mariş, Hernan Wahlberg, R. Bonino, S. Riggi, Sofia Andringa, R. M. de Almeida, I. Lhenry-Yvon, N. Palmieri, T. Rossler, B. García, Mario Scuderi, Tobias Winchen, R. López, Karen S. Caballero-Mora, T. Antičić, J. Kleinfeller, E. D. Fraenkel, Colin Baus, R. M. Kieckhafer, Juan Moreno, S. J. Saffi, J. Rautenberg, O. Wainberg, Moritz Münchmeyer, G. C. Hill, Daniel Kuempel, Carlos Escobar, M. Ludwig, Ralph Engel, R. J. Lauer, P. Ristori, A. Menshikov, Martin Erdmann, W. C. Brown, J. Ridky, H. Schieler, T. Susa, A. Stutz, S. Maldera, Karl-Heinz Kampert, Antonella Castellina, J. F. Valdés Galicia, I. De Mitri, A. Gascon Bravo, Ivone F. M. Albuquerque, Ke Fang, Roger W Clay, N. T. Thao, S. T. Garcia Roca, J. Bäuml, Rossella Caruso, B. Caccianiga, van den Ad M Berg, A. C. Fauth, M. A. Leigui de Oliveira, H. Lyberis, Carla Bonifazi, J. C. dos Anjos, Jose A. Bellido, Markus Lauscher, Jaime Rosado, R. Cester, A. Lucero, G. La Rosa, B. Morales, D. Garcia-Pinto, Raul Sarmento, S. Westerhoff, G. P. Guedes, A. Di Matteo, B. Wundheiler, Gregory R Snow, R. Gaior, N. Fazzini, A. Shadkam, H. J. Mathes, G. Torralba Elipe, R. Krause, J. Oehlschläger, A. F. Grillo, Juan Carlos D'Olivo, L. Valore, T. Pierog, Amin Aminaei, Carola Dobrigkeit, M. Plum, R. F. Gamarra, P. L. Ghia, G. De La Vega, P. Wahrlich, Alan Watson, B. Wilczynska, J. Rodriguez Rojo, J. Alvarez Castillo, Marco Giammarchi, Sasa Micanovic, A. Criss, T. Preda, M. Pontz, V. Marin, S. Quinn, F.G. Schröder, Enrique Zas, A. Segreto, Radomir Smida, A. Schulz, V. de Souza, Fernando Contreras, M. Zavrtanik, L. Nellen, C. Morello, K. D. de Vries, Peter L. Biermann, Paolo Privitera, Petr Schovanek, H. Rivera, Iván Sidelnik, Paulo J. S. Gonçalves, Eun-Joo Ahn, M.E. Ortiz, François Montanet, S. van Velzen, K. H. Becker, Ralf Ulrich, F. Salamida, L. Molina-Bueno, D. Melo, David Walz, D. Pakk Selmi-Dei, R. Sato, D. Maurizio, J. L. Navarro, S. Gambetta, J. C. Diaz, Lorenzo Caccianiga, R. Piegaia, Y. Guardincerri, M. Ambrosio, A. Petrolini, B. Tome, G. Müller, C. J.W.P. Timmermans, H. Schoorlemmer, Guenter Sigl, M. C. Maccarone, B. Revenu, U. Fröhlich, J. R. Vázquez, D. Garcia-Gamez, P. Sanchez-Lucas, D. Harari, Bruno Daniel, T. Yapici, J. J. Masías Meza, D. Maurel, A. Tapia, H. Gemmeke, M. Unger, M. Straub, M. Giller, Yogendra N. Srivastava, M. I. Micheletti, Alina Mihaela Badescu, Rúben Conceição, M. Blanco, Paul Sommers, P. Gouffon, P. N. Dong, M. J. Cooper, Carlos Medina, M. De Domenico, L. Latronico, Maria Rita Coluccia, S. Navas, M. Melissas, R. A. Vázquez, H. Glass, A. Filipčič, F. Sanchez, Paula Gina Isar, F. Sarazin, S. Petrera, Marc Weber, Pedro Brogueira, F. Salesa Greus, G. Cataldi, E. Trovato, B. Gookin, E. M. Santos, S. H. Cheng, Bruce R. Dawson, Tim Huege, Esteban Roulet, C. E. Fracchiolla, Corinne Berat, C. E. Santo, W. Tkaczyk, M. L. Díaz Castro, A., Aab, P., Abreu, M., Aglietta, M., Ahler, Ahn, E. . J., Albuquerque, I. . F. . M., I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Antičić, C., Aramo, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, Badescu, A. . M., Barber, K. . B., R., Bardenet, J., Bäuml, C., Bau, Beatty, J. . J., Becker, K. . H., Bellido, J. . A., S., Benzvi, C., Berat, X., Bertou, Biermann, P. . L., P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, Brown, W. . C., P., Buchholz, A., Bueno, M., Buscemi, Caballero Mora, K. . S., B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, Cheng, S. . H., A., Chiavassa, Chinellato, J. . A., J., Chudoba, M., Cilmo, Clay, R. . W., Cocciolo, Giuseppe, R., Colalillo, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, Cooper, M. . J., S., Coutu, Covault, C. . E., A., Cri, J., Cronin, A., Curutiu, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, Dawson, B. . R., de Almeida, R. . M., M., De Domenico, de Jong, S. . J., G., De La Vega, de Mello Junior, W. . J. . M., de Mello Neto, J. . R. . T., DE MITRI, Ivan, V., de Souza, de Vries, K. . D., L., del Peral, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, A., Di Matteo, Diaz, J. . C., Díaz Castro, M. . L., Diep, P. . N., F., Diogo, C., Dobrigkeit, W., Docter, D’Olivo, J. . C., Dong, P. . N., A., Dorofeev, dos Anjos, J. . C., Dova, M. . T., J., Ebr, R., Engel, M., Erdmann, Escobar, C. . O., J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, Fauth, A. . C., N., Fazzini, Ferguson, A. . P., B., Fick, Figueira, J. . M., A., Filevich, A., Filipčič, N., Foerster, Fox, B. . D., Fracchiolla, C. . E., Fraenkel, E. . D., O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, Gamarra, R. . F., S., Gambetta, B., García, Garcia Roca, S. . T., D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, H., Gemmeke, Ghia, P. . L., M., Giammarchi, M., Giller, J., Gitto, C., Glaser, H., Gla, F., Gomez Albarracin, M., Gómez Berisso, Gómez Vitale, P. . F., P., Gonçalve, Gonzalez, J. . G., B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S., Grebe, N., Griffith, Grillo, A. . F., Grubb, T. . D., Y., Guardincerri, F., Guarino, Guedes, G. . P., P., Hansen, D., Harari, Harrison, T. . A., Harton, J. . L., A., Haung, T., Hebbeker, D., Heck, Herve, A. . E., Hill, G. . C., C., Hojvat, N., Hollon, E., Holt, P., Homola, Hörandel, J. . R., P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, Isar, P. . G., S., Jansen, C., Jarne, M., Josebachuili, K., Kadija, O., Kambeitz, Kampert, K. . H., P., Karhan, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, E., Kemp, Kieckhafer, R. . M., Klages, H. . O., M., Kleifge, J., Kleinfeller, J., Knapp, R., Krause, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G., La Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S., Le Coz, Leão, M. . S. . A. . B., D., Lebrun, P., Lebrun, Leigui de Oliveira, M. . A., A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, Maccarone, M. . C., M., Malacari, S., Maldera, J., Maller, D., Mandat, P., Mantsch, Mariazzi, A. . G., V., Marin, Mariş, I. . C., Marquez Falcon, H. . R., Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, Masías Meza, J. . J., Mathes, H. . J., J., Matthew, Matthews, J. . A. . J., G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, Mazur, P. . O., C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mićanović, Micheletti, M. . I., L., Middendorf, Minaya, I. . A., L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, Moreno, J. . C., M., Mostafá, Moura, C. . A., Muller, M. . A., G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, Navarro, J. . L., S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, Nhung, P. . T., M., Niechciol, L., Niemietz, T., Niggemann, D., Nitz, D., Nosek, L., Nožka, J., Oehlschläger, A., Olinto, M., Oliveira, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pe¸kala, R., Pelayo, Pepe, I. . M., Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, A., Petrolini, Y., Petrov, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, M., Pontz, A., Porcelli, T., Preda, P., Privitera, M., Prouza, Quel, E. . J., S., Querchfeld, S., Quinn, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, W., Rodrigues de Carvalho, I., Rodriguez Cabo, G., Rodriguez Fernandez, J., Rodriguez Martino, J., Rodriguez Rojo, Rodríguez Frías, M. . D., G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d’Orfeuil, E., Roulet, Rovero, A. . C., C., Rühle, Saffi, S. . J., A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sánchez, P., Sanchez Luca, Santo, C. . E., E., Santo, Santos, E. . M., F., Sarazin, B., Sarkar, R., Sarmento, R., Sato, N., Scharf, Scherini, Viviana, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, P., Schovánek, Schröder, F. . G., A., Schulz, J., Schulz, Sciutto, S. . J., M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, Shellard, R. . C., I., Sidelnik, G., Sigl, O., Sima, A., Śmiałkowski, R., Šmída, Snow, G. . R., P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Srivastava, Y. . N., S., Stanič, J., Stapleton, J., Stasielak, M., Stephan, M., Straub, A., Stutz, F., Suarez, T., Suomijärvi, Supanitsky, A. . D., T., Šuša, Sutherland, M. . S., J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Taşcău, Thao, N. . T., J., Tiffenberg, C., Timmerman, W., Tkaczyk, Todero Peixoto, C. . J., G., Toma, L., Tomankova, B., Tomé, A., Tonachini, G., Torralba Elipe, D., Torres Machado, P., Travnicek, Tridapalli, D. . B., E., Trovato, M., Tuero, R., Ulrich, M., Unger, Valdés Galicia, J. . F., I., Valiño, L., Valore, G., van Aar, van den Berg, A. . M., S., van Velzen, A., van Vliet, E., Varela, B., Vargas Cárdena, G., Varner, Vázquez, J. . R., Vázquez, R. . A., D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, Watson, A. . A., M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, Whelan, B. . J., A., Widom, G., Wieczorek, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, B., Wundheiler, S., Wyke, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, Research unit Astroparticle Physics, Universidade Estadual de Campinas, Ahn, E. ?. J., Albuquerque, I. ?. F. ?. M., J., Alvarez Mu?iz, T., Anti?i?, Badescu, A. ?. M., Barber, K. ?. B., J., B?uml, Beatty, J. ?. J., Becker, K. ?. H., Bellido, J. ?. A., Biermann, P. ?. L., C., Bleve, H., Bl?mer, M., Boh??ov?, Brown, W. ?. C., Buscemi, Mario, Caballero Mora, K. ?. S., Cheng, S. ?. H., Chinellato, J. ?. A., Cilmo, Marco, Clay, R. ?. W., G., Cocciolo, Colalillo, Roberta, Coluccia, M. ?. R., R., Concei??o, Cooper, M. ?. J., Covault, C. ?. E., Dawson, B. ?. R., de Almeida, R. ?. M., de Jong, S. ?. J., de Mello Junior, W. ?. J. ?. M., de Mello Neto, J. ?. R. ?. T., I., De Mitri, de Vries, K. ?. D., Diaz, J. ?. C., D?az Castro, M. ?. L., Diep, P. ?. N., D?olivo, J. ?. C., Dong, P. ?. N., dos Anjos, J. ?. C., Dova, M. ?. T., Escobar, C. ?. O., Fauth, A. ?. C., Ferguson, A. ?. P., Figueira, J. ?. M., A., Filip?i?, Fox, B. ?. D., Fracchiolla, C. ?. E., Fraenkel, E. ?. D., U., Fr?hlich, Gamarra, R. ?. F., B., Garc?a, Garcia Roca, S. ?. T., Ghia, P. ?. L., M., G?mez Berisso, G?mez Vitale, P. ?. F., P., Gon?alve, Gonzalez, J. ?. G., Grillo, A. ?. F., Grubb, T. ?. D., Guarino, Fausto, Guedes, G. ?. P., Harrison, T. ?. A., Harton, J. ?. L., Herve, A. ?. E., Hill, G. ?. C., H?randel, J. ?. R., M., Hrabovsk?, Isar, P. ?. G., Kampert, K. ?. H., B., K?gl, Kieckhafer, R. ?. M., Klages, H. ?. O., O., Kr?mer, Le?o, M. ?. S. ?. A. ?. B., Leigui de Oliveira, M. ?. A., R., L?pez, A., Lopez Ag?era, Maccarone, M. ?. C., Mariazzi, A. ?. G., Mari?, I. ?. C., Marquez Falcon, H. ?. R., G., Marsella, D., Martello, O., Mart?nez Bravo, Mas?as Meza, J. ?. J., Mathes, H. ?. J., Matthews, J. ?. A. ?. J., Mazur, P. ?. O., S., Mi?anovi?, Micheletti, M. ?. I., Minaya, I. ?. A., Moreno, J. ?. C., M., Mostaf?, Moura, C. ?. A., Muller, M. ?. A., G., M?ller, M., M?nchmeyer, Navarro, J. ?. L., Nhung, P. ?. T., L., No?ka, J., Oehlschl?ger, J., Pe?kala, Pepe, I. ?. M., L., Perrone, Quel, E. ?. J., Rodr?guez Fr?as, M. ?. D., B., Rouill? d?Orfeuil, Rovero, A. ?. C., C., R?hle, Saffi, S. ?. J., F., S?nchez, Santo, C. ?. E., Santos, E. ?. M., V., Scherini, P., Schov?nek, Schr?der, F. ?. G., Sciutto, S. ?. J., Shellard, R. ?. C., A., ?mia?kowski, R., ?m?da, Snow, G. ?. R., Srivastava, Y. ?. N., S., Stani?, T., Suomij?rvi, Supanitsky, A. ?. D., T., ?u?a, Sutherland, M. ?. S., O., Ta?c?u, Thao, N. ?. T., Todero Peixoto, C. ?. J., B., Tom?, Tridapalli, D. ?. B., Galicia, J. ?. F. Vald?s., I., Vali?o, Valore, Laura, van den Berg, A. ?. M., B., Vargas C?rdena, V?zquez, J. ?. R., V?zquez, R. ?. A., D., Veberi?, L., Villase?or, Watson, A. ?. A., Whelan, B. ?. J., B., Wilczy?ska, H., Wilczy?ski, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Signals, Astronomy, 01 natural sciences, Electric field, Computational physics, Cosmic-rays, Composition energy spectra and interactions, cosmic ray, Radio wave, Physics, Earth's magnetic field, High Energy Astrophysical Phenomena (astro-ph.HE), Radiation, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, Polarization (waves), Bolometers, Thunderstorms, Magnetic field, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, CAMPO MAGNÉTICO, radio emission, Nuclear and High Energy Physics, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Air shower, Solar electromagnetic emission, Astrophysics::High Energy Astrophysical Phenomena, infrared submillimeter wave microwave and radiowave receivers and detectors, Field, FOS: Physical sciences, Pierre Auger Observatory, air shower, Monte-carlo Simulations, Optics, 0103 physical sciences, ddc:530, Pierre auger observatory, 010306 general physics, Pulses, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010308 nuclear & particles physics, business.industry, Física, Detector, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Experimental High Energy Physics, business, Codalema
Abstract

The emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiation which can be observed with rather simple setups. The direction of the electric field induced by this emission process depends only on the local magnetic field vector and on the incoming direction of the air shower. We report on measurements of the electric field vector where, in addition to this geomagnetic component, another component has been observed which cannot be described by the geomagnetic emission process. The data provide strong evidence that the other electric field component is polarized radially with respect to the shower axis, in agreement with predictions made by Askaryan who described radio emission from particle showers due to a negative charge-excess in the front of the shower. Our results are compared to calculations which include the radiation mechanism induced by this charge-excess process., Comment: Accepted for publication in Phys. Rev. D; 50 pages, 15 figures

Published
2014
Full Text
View/download PDF

28. Erratum to 'Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory'[Astroparticle Physics 32(2) (2009), 89-99]

Author

P. Lebrun, R. López, Karen S. Caballero-Mora, L. Valore, M. Gold, Martin Erdmann, I. Zaw, V. C. Holmes, D. Lebrun, C. Macolino, J. Oehlschläger, I. Dutan, Roger W Clay, W. J. M. de Mello, Markus Risse, U. Cotti, D. Heck, Carola Dobrigkeit, R. F. Gamarra, I. Valiño, P. Wahrlich, T. Suomijärvi, J. Pallotta, E. J. Quel, I. Torres, Alan Watson, L. Cazon, S. Navas, M. Melissas, M. Hrabovsky, C. Hojvat, R. A. Vázquez, O. Taşcaǧu, F. Sánchez, K. Louedec, Paulo J. S. Gonçalves, V. Rizzi, Mariangela Settimo, K. H. Kampert, J. PeĶala, E. Trovato, Wagner Carvalho, Iván Sidelnik, M.E. Ortiz, A. Filipčič, A. Rouillé-d'Orfeuil, H.O. Klages, A. Redondo, D.V. Semikoz, H. Blümer, Charles Timmermans, C. Riviere, F. Sarazin, Kai Daumiller, M. S. A. B. Leão, M. Urban, S. Petrera, G. Parente, E. M. Santos, Piotr Homola, P. Facal San Luis, M. Grigat, Ralf Ulrich, R. M. de Almeida, J. Pochon, Richard Dallier, A. C. Rovero, Luis A. Anchordoqui, Bruce R. Dawson, M. D. Healy, P. T. Nhung, H. R. Marquez Falcon, Jaime Alvarez-Muñiz, D. Schuster, K. Payet, P.O. Mazur, Darko Veberič, C. Bleve, F. Arneodo, S. Gambetta, J. Kleinfeller, Petr Travnicek, R. Ticona, Martina Bohacova, Patrick Allison, J. G. Gonzalez, C. Morris, V. Pirrpnello, A. Schmidt, R. Bonino, D. Allard, Rodrigo Pelayo, S. Westerhoff, L. Nellen, Miguel Mostafá, C. Morello, K. D. de Vries, Vasiliki Pavlidou, H. M. Spinka, R. Piegaia, O. Krömer, J. Sorokin, van den Ad M Berg, A. C. Fauth, R. M. Kieckhafer, Juan Moreno, Daniel Kuempel, Carlos Escobar, A. Creusot, S. Maldera, B. Revenu, J. R. Vázquez, A. Italiano, D. Melo, T. Huege, Jeffrey Brack, J. Rautenberg, O. Wainberg, Maria-Teresa Dova, T. Schmidt, S. Grebe, Olaf Scholten, W. Fulgione, H. Lyberis, Jose A. Bellido, Stefano Argiro, Humberto Ibarguen Salazar, B. Keilhauer, Catherine Newman-Holmes, D. B. Tridapalli, P. Bernardini, J. Allen, D. Harari, M. Zavrtanik, H. Schieler, Matthias Leuthold, Fabrizio Ortolani, W. C. Brown, Peter L. Biermann, E. Petermann, D. D'Urso, N. T. Thao, Gennaro Miele, Jaime Rosado, K.-H. Becker, D. Warner, Corinne Berat, M. Giller, S. J. Sciutto, D. García Gámez, R. Pesce, Miroslav Pech, J. Schovancova, Antonella Castellina, Paul Sommers, Lisa M. Goggin, R. Bruijn, Graciela B. Gelmini, J. Lozano Bahilo, Segev BenZvi, N. Nierstenhoefer, M. Monasor, A. Horneffer, M. Pimenta, A. G. Mariazzi, C. Robledo, A. Haungs, John G. Lee, J. L. Harton, E. Parizot, R. Squartini, C. E. Santo, Corbin Covault, T. Paul, Y. Petrov, D. Martello, C. De Donato, R. Luna García, P. Gouffon, P. N. Dong, R. Cester, W. Tkaczyk, J. D. Hague, Jörg R. Hörandel, B. Morales, Paolo Privitera, K. Arisaka, S. Fliescher, Lino Miramonti, M. S. Sutherland, P. Petrinca, M. Ziolkowski, D. Nitz, P. Mantsch, F. A. S. Rezende, C. Lachaud, U. Giaccari, C. Bonifazi, O. Martínez Bravo, H. Wu, M. D. Rodríguez-Frías, J. Gutiérrez, M. De Domenico, José Eduardo Martinez, J. A.J. Matthews, Xavier Bertou, G. Navarra, Olivier Ravel, E. Menichetti, R. Knapik, F. Schüssler, D. Pakk Selmi-Dei, I. Lhenry-Yvon, Hernan Wahlberg, Francesc Ferrer, A. Chiavassa, Sofia Andringa, K. B. Barber, A. Smialkowski, C. A. Moura, S. L.C. Barroso, T. Yamamoto, Antonio Velarde, A. Zepeda, Rossella Caruso, Pietro Oliva, A. Lucero, Pedro Assis, A. Etchegoyen, G. Medina-Tanco, Warner A. Miller, Onofrio A. Catalano, G. La Rosa, L. R. Wiencke, Petr Schovanek, R. Meyhandan, J. Knapp, X. Garrido, M. Ambrosio, A. Criss, A. Lopez Agüera, M. Pontz, R. Sato, B. Connolly, B. M. Baughman, Eun-Joo Ahn, N. Scharf, V. Tuci, Javier Tiffenberg, Alberto Filevich, Peter Hansen, E. D. Fraenkel, F. Guarino, John Matthews, V. M. Olmos-Gilbaja, N. Pacheco, A. Petrolini, Peter Buchholz, Dusan Mandat, H. Glass, Nicolás G. Busca, M. I. Micheletti, B. Wilczyn' Ska, Marco Aglietta, Tonia M. Venters, A. Chou, A. D. Supanitsky, D. Dornic, Hernán Asorey, A. Tamburro, I. Allekotte, F. Suarez, Thomas Hebbeker, M. Kaducak, F. Ionita, D. Tcherniakhovski, H. Schoorlemmer, T. Bäcker, A. Bellétoile, G. Decerprit, Pedro Brogueira, M. Palatka, C. J. Todero Peixoto, Rúben Conceição, Pascal Lautridou, Iuri Muniz Pepe, E. Kemp, Serguei Vorobiov, D. Kruppke-Hansen, P. W. Younk, B. E. Smith, Beatriz B. Siffert, P. Schiffer, S. Parlati, S. Schulte, T. Pinto, J. L. Navarro, B. Wundheiler, Gregory R Snow, Marcio Aparecido Muller, P. H. Kasper, D. Newton, V. H. Ponce, L. Perrone, Jiri Chudoba, E. Colombo, A. Tamashiro, G. P. Guedes, Daniel Gonzalez, D. Monnier Ragaigne, S. Harmsma, E. Strazzeri, J. C. Diaz, G. Golup, Ivor Fleck, S. Dagoret-Campagne, L. del Peral, H. Gemmeke, N. Kunka, C. Pfendner, A. Cordier, M. Unger, J. F. Valdés Galicia, I. De Mitri, J. Rodriguez Martino, G. Yuan, S. Riggi, J. Chye, G. Matthiae, Matias Tueros, J. Abraham, E. Grashorn, J. W. Cronin, Antonio Bueno, Sergio Pastor, Daniel Omar Badagnani, Nataliia Borodai, H. Wilczyn' Ski, F. Salamida, M. A. Leigui de Oliveira, R. Tcaciuc, F. Schroeder, S. J. De Jong, Y. Guardincerri, Gualberto Avila, P. Bauleo, Pierre Billoir, D. Thomas, A. Curutiu, B. Tome, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, S. Coutu, M. Nyklicek, Esteban Roulet, J. R. T. de Mello Neto, Angela V. Olinto, V. Halenka, M. Hussain, T. Karova, B. Kégl, Fabian Schmidt, F. Montanet, J. C. dos Anjos, P. L. Ghia, Michael DuVernois, M. McEwen, M. C. Maccarone, L. Voyvodic, Subir Sarkar, Alexander Kusenko, German Ros, F. Arqueros, C. Wileman, P. Necesal, D. Garcia-Pinto, R. Mussa, J. J. Beatty, Silvia Mollerach, J. Coppens, J. Chauvin, N. Fazzini, A. Segreto, Julien Aublin, Markus Roth, M. Patel, Radomir Smida, C. Delle Fratte, A. Ferrero, A. Anzalone, V. de Souza, T. Tarutina, M. Gómez Berisso, R. C. Shellard, I. Rodriguez-Cabo, Jose Chinellato, A. F. Barbosa, M. Ave, D. Nosek, R. E. Burton, A. Letessier-Selvon, H. J. Mathes, V. Verzi, H. Dembinski, G. De La Vega, Ofelia Pisanti, B. J. Whelan, D. Maurizio, J. Rodriguez Rojo, C. Aramo, Enrique Zas, Pham Ngoc Diep, O. Blanch-Bigas, A. Krieger, A. Dorofeev, C. Di Giulio, Heino Falcke, Fernando Contreras, G. Wieczorek, Marco Iarlori, J. Petrovic, S. Reucroft, M. Prouza, S. Mueller, P. Abreu, A. Della Selva, M. Videla, D. Ravignani, Ernesto Arganda, C. E. Fracchiolla, G. Farrar, L. Villaseñor, R. R. McNeil, Dariusz Gora, G. Salina, Olivier Deligny, T. Rossler, A. Lemiere, B. Fick, A. Tonachini, T. Asch, M. Gonçalves do Amaral, J. D. Swain, G. Rodriguez, M. G. Winnick, M. Platino, Marcos Santander, A. Insolia, M. Kleifges, D. Zavrtanik, L. Nožka, L. Caramete, G. Tristram, B. L. Lago, C. Aguirre, Francisco J. Blanco, F. Gomez Albarracin, V. Scherini, G. Hebrero, A. Gorgi, Z. Szadowski, S. Jiraskova, Ioana Codrina Maris, A. Menshikov, B. R. Becker, Ralph Engel, D. H. Koang, J. Ridky, Tristan Beau, A. Stutz, B. García, Mario Scuderi, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, D'Urso, Domenico, Guarino, Fausto, Valore, Laura, and The Pierre Auger, Collaboration

Subjects
Astroparticle physics, Physics, Pierre Auger Observatory, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], 010308 nuclear & particles physics, Astronomy, Detector, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Auger, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Experimental High Energy Physics, 0103 physical sciences, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS
Abstract

The Pierre Auger Collaboration... K.B. Barber... J.A. Bellido... R.W. Clay... B.R. Dawson... V.C. Holmes... J. Sorokin... P. Wahrlich... B.J. Whelan... M.G. Winnick... et al.

Published
2010
Full Text
View/download PDF

29. Study of resonant reactions with radioactive ion beams

Author

Carl J Gross, J. Gomez del Campo, M.E. Ortiz, R. L. Varner, S. D. Paul, A. Galindo-Uribarri, D. W. Stracener, S. Pascual, J. F. Liang, A. Huerta, Dan Shapira, E. Chávez, J. R. Beene, and E. Padilla

Subjects
Physics, Nuclear and High Energy Physics, Ion beam, Silicon, Physics::Instrumentation and Detectors, Scattering, Resonance, chemistry.chemical_element, Ion, Nuclear physics, chemistry, Isobar, Physics::Accelerator Physics, Atomic physics, Instrumentation, Beam (structure), Accelerator mass spectrometry
Abstract

A fast and efficient method to study (p,p) and (p,α) resonances with radioactive beams in inverse kinematics is described. It is based on the use of thick targets and large area double-sided silicon strip detectors (DSSDs) to detect the recoiling light-charged particles and to determine precisely their scattering angle. The first nuclear physics experiments with the technique have been performed recently at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge with stable beams of 17 O and radioactive beams of 17 F . The high-quality resonance measurements obtained demonstrate the capabilities of the technique. Pure 17 F beams from HRIBF were produced by fully stripping the ions and separating the interfering and more abundant 17 O ions by the beam transport system. The removal of interfering isobars is one of the various common challenges to both accelerator mass spectrometry (AMS) and radioactive ion beam (RIB) production. Experiments done with RIBs will benefit from the use of the most efficient techniques for production, isobar separation, transport and detection.

Published
2000
Full Text
View/download PDF

30. Techniques for measuring aerosol attenuation using the Central Laser Facility at the Pierre Auger Observatory

Author

Miguel Mostafá, F. Diogo, E. Santos, R. M. de Almeida, M. Prouza, B. Zamorano Garcia, O. Tascau, Colin Baus, P. Abreu, D. Ravignani, Zbigniew Szadkowski, G. Cocciolo, G. Matthiae, S. Westerhoff, H. Schieler, Karl-Heinz Kampert, Antonio Bueno, Sergio Pastor, Antonella Castellina, J. Lozano Bahilo, Corbin Covault, Y. Petrov, M. Platino, M. Monasor, V. H. Ponce, Geraldina Golup, Alexander Grillo, S. Fliescher, E. Trovato, Diego Harari, Gualberto Avila, Ingomar Allekotte, C. E. Santo, Francisco J. Blanco, Lino Miramonti, N. Nierstenhoefer, B. Gookin, Jose Chinellato, F. Gomez Albarracin, Angela V. Olinto, S. Jansen, B. J. Whelan, M. Oliveira, J. Kleinfeller, E. M. Santos, S. H. Cheng, I. C. Mariş, Hernan Wahlberg, Bruce R. Dawson, P. Lautridou, B. Rouillé-D'Orfeuil, Martina Bohacova, Patrick Allison, A. Widom, S. J. De Jong, Leigui de Oliveira, H. Rivera, M. Straub, E. D. Fraenkel, J. Sorokin, Daniel Kuempel, R. J. Lauer, Yogendra N. Srivastava, Luis A. Anchordoqui, Pierre Billoir, A. F. Barbosa, Carlos Escobar, P. Ristori, D. Nosek, J. Knapp, A. Lopez Agüera, D. Thomas, A. Curutiu, M. Risse, Rémi Bardenet, M. Will, B. D. Fox, Alberto Filevich, G. Parente, Carlos Hojvat, J. C. Marin, H. R. Marquez Falcon, Alejandro Almela, Markus Ahlers, Yingchun Zhu, B. Revenu, Muller, S. Maldera, P. Brogueira, J. Oehlschläger, A. Letessier-Selvon, Petr Travnicek, M. Avenier, Peter Hansen, F. Guarino, Lorenzo Cazon, E. Varela, T. Rossler, Johannes Schulz, J. Maller, K.-H. Becker, Kai Daumiller, Peter Buchholz, Jörg R. Hörandel, G. Garilli, N. Griffith, S. J. Saffi, B. Caccianiga, L. Caramete, M. Plum, R. F. Gamarra, Trent D. Grubb, D. Huber, J. Bäuml, Rossella Caruso, A. Lucero, Ivone F. M. Albuquerque, Ke Fang, A. van Vliet, M. Szuba, F. Salesa Greus, P. Wahrlich, G. Marsella, Iván Sidelnik, N. T. Thao, Rúben Conceição, I.M. Brancus, R. Meyhandan, Eric Mayotte, M. Ave, G. La Rosa, R. E. Burton, B. Vargas Cárdenas, Alan Watson, M. Pimenta, Juan Manuel Figueira, Marco Aglietta, Roberta Colalillo, H. M. Spinka, A. G. Mariazzi, A. Weindl, Maria-Teresa Dova, H. Cook, J. Gitto, J. Alvarez Castillo, J. R. Vázquez, T. Suomijärvi, J. Pallotta, M. Gómez Berisso, Markus Lauscher, Jing Zhou, G. S. Varner, R. C. Shellard, K. Link, W. Docters, A. C. Rovero, I. Lhenry-Yvon, L. Perrone, Jiri Chudoba, D. Torres Machado, E. J. Quel, Kreso Kadija, D. Nitz, J. Stasielak, S. Coutu, D. Martraire, Béatrice Fuchs, Octavian Fratu, A. Gorgi, B. M. Baughman, A. Haungs, M. Zimbres Silva, J. L. Harton, M. Videla, Niraj Dhital, A. Smialkowski, N. Hollon, V. Verzi, Thomas Harrison, I. Valiño, A. Chiavassa, J. Espadanal, N. Palmieri, J. R. T. de Mello Neto, M. Palatka, M. Hrabovský, Norberto Fazzini, K. B. Barber, P. Pieroni, J. Neuser, D. Kruppke-Hansen, R. Gaior, J. Stapleton, G. Salina, Paul Sommers, P. Gouffon, Rodríguez-Frías, F. Arqueros, P. Necesal, L. R. Wiencke, M. L. Díaz Castro, G. Farrar, A. Menshikov, A.M. van den Berg, P. Karhan, A. Bellétoile, Olivier Deligny, C. E. Fracchiolla, D. D'Urso, P. Kasper, Alessandro Petrolini, A. Dorofeev, M. J. Cooper, Corinne Berat, Y. Guardincerri, P. T. Nhung, Darko Veberič, F. Sánchez, Luca Latronico, M. Coco, A. Keivani, Vincenzo Rizi, I. Rodriguez Cabo, F. Suarez, Thomas Hebbeker, Octavian Sima, J. G. Gonzalez, Sergio Dasso, M. De Domenico, A. Schmidt, R. Pesce, Igor Katkov, A. C. Fauth, K. Louedec, Mariangela Settimo, K. Weidenhaupt, Alexey Yushkov, Lukas Middendorf, V. C. Holmes, D. Lebrun, J. Schovancova, G. Torralba Elipe, D. Heck, V. Pirronello, G. Cataldi, D. Maurizio, Iuri Muniz Pepe, H. Lyberis, C. Jarne, R. Krause, W. Tkaczyk, Carla Bonifazi, D. Martello, G. Müller, Jose A. Bellido, L. Villaseñor, C. Rühle, E. Petermann, L. Valore, Peter Gorham, N. Kunka, H. Blümer, Max Malacari, Miroslav Pech, Peter Schiffer, V. Scherini, Amin Aminaei, L. Martin, M. Ziolkowski, C. Aramo, Alberto Daniel Supanitsky, U. Fröhlich, R. Bonino, T. Huege, Marco Cilmo, L. Collica, Maurice Stephan, Pavel Horvath, Dusan Mandat, A. Parra, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, Maria Rita Coluccia, Jaime Rosado, I. Zaw, Alina Mihaela Badescu, O. Martínez Bravo, Piotr Homola, Alexandra Saftoiu, M. Pontz, Pham Ngoc Diep, M. Buscemi, M. Josebachuili, Balázs Kégl, Richard Dallier, A. Nelles, G. Rodriguez Fernandez, H. J. Mathes, A. Filipcic, M. C. Maccarone, Markus Roth, G. De La Vega, B. Mitrica, J. A.J. Matthews, Xavier Bertou, Heino Falcke, L. Buroker, Bruno Daniel, R. Cester, S. Le Coz, C. Macolino, Jan Ebr, Jaime Alvarez-Muñiz, T. Yapici, L. Tomankova, Hernán Asorey, C. J. Todero Peixoto, D. Schuster, J. J. Masías Meza, A. Zepeda, B. Morales, S. Jiraskova, G. Navarra, J. D. Swain, Sergio Petrera, C. A. Moura, T. Yamamoto, Brian Fick, J. Vicha, Samo Stanič, Pedro Assis, G. Wieczorek, C. L. Williams, Moritz Münchmeyer, G. C. Hill, Lu Lu, J. K. Kulbartz, Sofia Andringa, A. Etchegoyen, D. Maurel, J. Rodriguez Rojo, Javier Tiffenberg, O. Krömer, A. Insolia, M. Kleifges, D. Zavrtanik, B. Tome, Peter Mazur, Ralph Engel, M. Blanco, J. Ridky, F.G. Schröder, Enrique Zas, H.O. Klages, A. Tonachini, B. García, Mario Scuderi, Tobias Winchen, T. Susa, A. Stutz, J. Pȩkala, L. Caccianiga, C. Di Giulio, Denise Boncioli, R. López, Karen S. Caballero-Mora, N. Scharf, Fernando Contreras, P. N. Dong, S. Messina, I. A. Minaya, B. Keilhauer, D. B. Tridapalli, J. Allen, S. Navas, M. Melissas, A. P. Ferguson, N. Krohm, A. Tapia, S. J. Sciutto, M. Ludwig, German Ros, Martin Erdmann, H. Gemmeke, M. Unger, R. A. Vázquez, G. Yuan, W. Rodrigues de Carvalho, B. Sarkar, Christian Glaser, F. Salamida, L. Molina-Bueno, D. Melo, M. Tartare, Roberts, F. Sarazin, J. W. Cronin, David Walz, Roger W Clay, Marc Weber, D. Pakk Selmi-Dei, P. Lebrun, G. Toma, E. Kemp, R. Sato, Nataliia Borodai, M. Ambrosio, F. Werner, H. Wilczyński, J. L. Navarro, D. Monnier Ragaigne, C. Pfendner, M. I. Micheletti, C. J.W.P. Timmermans, E. J. Ahn, H. Schoorlemmer, S. Grebe, J. C. Diaz, R. Squartini, T. Paul, H. Martinez, Matias Tueros, S. Riggi, T. Antičić, E. Menichetti, Marcus Niechciol, G. Medina-Tanco, R. Pelayo, R. Mussa, J. J. Beatty, G. van Aar, S. Querchfeld, J. L. Kelley, Silvia Mollerach, Alain Hervé, H. Dembinski, L. Niemietz, L. del Peral, N. Pacheco, O. Ravel, J. Roberts, Tim Niggemann, A.R. Batista, W. J. M. de Mello Junior, Julien Aublin, J. Rodriguez Martino, A. Shadkam, Carla Bleve, P.F. Gómez Vitale, A. Porcelli, B. Wundheiler, Gregory R Snow, A. Segreto, M. S. A. B. Leão, Günter Sigl, Radomir Smida, Sutherland, John N. Matthews, R. M. Kieckhafer, P. Younk, Juan Moreno, J. Rautenberg, O. Wainberg, V. de Souza, W. C. Brown, J. F. Valdés Galicia, I. De Mitri, A. Gascon Bravo, G. P. Guedes, D. Garcia-Gamez, S. T. Garcia Roca, R. Tcaciuc, F. Montanet, J. C. dos Anjos, M. Zavrtanik, D. Garcia-Pinto, Juan Carlos D'Olivo, T. Pierog, Esteban Roulet, P. L. Ghia, H. Glass, Michael Urban, Petr Schovanek, B. Wilczynska, L. Nožka, Paulo J. S. Gonçalves, M.E. Ortiz, Sasa Micanovic, A. Criss, Maria Giller, Ralf Ulrich, Paul M. Mantsch, S. Gambetta, R. Piegaia, V. Marin, L. Nellen, C. Morello, K. D. de Vries, Peter L. Biermann, Paolo Privitera, S. van Velzen, Centro Nacional de Física de Partículas, Astropartículas y Nuclear (España), European Commission, Ministerio de Ciencia e Innovación (España), KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I. F. M., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Antičić, C., Aramo, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman f, J., Bäuml, C., Bau, J. J., Beatty, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, R., Bruijn i, P., Buchholz, A., Bueno, L., Buroker, R. E., Burton, K. S., Caballero Mora, B., Caccianiga, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chirinos Diaz, J., Chudoba, M., Cilmo, R. W., Clay, Cocciolo, Giuseppe, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, L., del Peral, M., del Río, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, M. L., Díaz Castro, P. N., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D'Urso, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, B., Fick, J. M., Figueira, A., Filevich, A., Filipčič, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel!, O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, H., Gemmeke, P. L., Ghia, M., Giller, J., Gitto, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, J. G., Gonzalez, B., Gookin, A., Gorgi, P., Gouffon, E., Grashorn, S., Grebe, N., Griffith, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, P., Hansen, D., Harari, T. A., Harrison, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, F., Ionita, A., Italiano, S., Jansen, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, D., Lahurd, L., Latronico, R., Lauer, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, J. J., Masías Meza, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, C., Meurer, R., Meyhandan, S., Mićanović, M. I., Micheletti, I. A., Minaya, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, M., Mostafá, C. A., Moura, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra ‡, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, M., Niechciol, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nožka, J., Oehlschläger, A., Olinto, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pękala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, A., Petrolini, Y., Petrov, C., Pfendner, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, V. H., Ponce, M., Pontz, A., Porcelli, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, W., Rodrigues de Carvalho, G., Rodriguez, I., Rodriguez Cabo, J., Rodriguez Martino, J., Rodriguez Rojo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d'Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., SÃ! ¡nchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, Scherini, Viviana, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, O., Sima, A., Śmiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y. N., Srivastava, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., Šuša, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Taşcău, R., Tcaciuc, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, L., Valore, G., van Aar, A. M., van den Berg, A., van Vliet, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, B. J., Whelan, A., Widom, G., Wieczorek, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, M., Wommer, B., Wundheiler, T., Yamamoto a, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano Garcia, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw h, A., Zepeda b, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO), PIERRE AUGER, Aramo, Carla, Buscemi, Mario, Cilmo, Marco, Colalillo, Roberta, D., D’Urso, Guarino, Fausto, Valore, Laura, and The Pierre Auger, Collaboration

Subjects
Astronomy, Detector alignment and calibration methods (lasers, sources, particle-beams), 01 natural sciences, Detector alignment and calibration methods (laser, Observatory, ATMOSPHERIC CONDITIONS, Detector alignment and calibration methods, Instrumentation, cosmic ray, Mathematical Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, atmospheric monitoring, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Data analysi, particle-beams), ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Central Laser Facility, Física nuclear, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, sources, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], source, Auger Experiment, aerosols * Authors are listed on the following pages, Data analysis, FOS: Physical sciences, Cosmic ray, cosmic rays, aerosols, Optics, Ultra-high energy cosmic rays. atmospheric monitoring. aerosols, 0103 physical sciences, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Pierre Auger Observatory, 010308 nuclear & particles physics, business.industry, Large detector systems for particle and astroparticle physics, Attenuation, Atmospheric correction, Ultra-high energy cosmic rays, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Aerosol, Detector alignment and calibration methods (lasers, Air shower, detector alignment and calibration methods (lasers, large detector systems for particle and astroparticle physics, data analysis, Experimental High Energy Physics, Large detector systems for particle and astroparticle physic, business, RAIOS CÓSMICOS, SYSTEM
Abstract

The Pierre Auger Observatory in Malargue, Argentina, is designed to study the properties of ultra-high energy cosmic rays with energies above 10(18) eV. It is a hybrid facility that employs a Fluorescence Detector to perform nearly calorimetric measurements of Extensive Air Shower energies. To obtain reliable calorimetric information from the FD, the atmospheric conditions at the observatory need to be continuously monitored during data acquisition. In particular, light attenuation due to aerosols is an important atmospheric correction. The aerosol concentration is highly variable, so that the aerosol attenuation needs to be evaluated hourly. We use light from the Central Laser Facility, located near the center of the observatory site, having an optical signature comparable to that of the highest energy showers detected by the FD. This paper presents two procedures developed to retrieve the aerosol attenuation of fluorescence light from CLF laser shots. Cross checks between the two methods demonstrate that results from both analyses are compatible, and that the uncertainties are well understood. The measurements of the aerosol attenuation provided by the two procedures are currently used at the Pierre Auger Observatory to reconstruct air shower data., We are very grateful to the following agencies and organizations for financial support: Comision Nacional de Energia Atomica, Fundacion Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargue, NDM Holdings and Valle Las Lenas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Ministerio de Ciencia e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB100100904, MSMT-CR LA08016, LC527, 1M06002, MEB111003, and MSM0021620859, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Regional Ile-de-France, Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), Departement Sciences de l'Univers (SDU-INSU/CNRS), France; Bundesministerium fur Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-Wurttemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium fur Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium fur Wissenschaft, Forschung und Kunst, Baden-Wurttemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. N N202 200239 and N N202 207238, Poland; Fundacao para a Ciencia e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejeria de Educacion de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovacion and Consolider-Ingenio 2010 (CPAN), Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DE-AC02-07CH11359, DE-FR02-04ER41300, National Science Foundation, Grant Nos. 0450696, 0855680, The Grainger Foundation USA; NAFOSTED, Vietnam; ALFA-EC /HE-LEN, European Union 6th Framework Program, Grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No. PIEF-GA-2008-220240, and UNESCO.

Published
2013
Full Text
View/download PDF

31. Lifetimes of some 6p levels of neutral krypton obtained by two-step (electron-photon) excitation

Author

M.E. Ortiz, F S Ferrero, José Gregorio Soto Campos, and A. de la Cruz

Subjects
Physics, Work (thermodynamics), Photon, Krypton, Two step, chemistry.chemical_element, Electron, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, chemistry, Radiative transfer, Atomic physics, Mathematical Physics, Excitation
Abstract

Radiative lifetimes of four levels belonging to the 4p56p configuration of neutral krypton have been measured by means of electron-impact excitation followed by selective pulsed-laser excitation. This experiment was carried out with pulsed and continuous electron beams. The experimental results of this work are 115 ± 6, 100 ± 5, 145 ± 7 and 115 ± 7 ns for the 6p(3/2)1, 6p(3/2)2, 6p(5/2)2 and 6p'(3/2)1 levels, respectively. These results have been compared with other experimental and theoretical values from the literature.

Published
1996
Full Text
View/download PDF

32. Determination of isotope shifts in 2,4-, 3,4- and 2,6-dichlorotoluene isomers in a supersonic beam

Author

A. de la Cruz, José Gregorio Soto Campos, and M.E. Ortiz

Subjects
Resonance-enhanced multiphoton ionization, Chemistry, Ionization, Rotational temperature, Photoionization, Atomic physics, Mass spectrometry, Spectroscopy, Molecular electronic transition, Spectral line, Isotopomers
Abstract

By using resonance-enhanced two-photon ionization in a supersonic beam, photoionization spectra of the m/z 160, 162 and 164 species of the 2,4-, 3,4- and 2,6-dichlorotoluene isomers at 0.8 K rotational temperature have been obtained in the 2800 A spectral region. The ions have been analyzed according to their masses in a time-of-flight mass spectrometer. Isotope shifts of the order of tenths of cm−1 have been determined for the first time for the studied molecules. The spectra obtained have been interpreted by considering the geometrical structure and symmetry of every isotopomer, and values for the rotational constants in the upper and lower states of the electronic transition have been obtained in agreement with the experimental results.

Published
1996
Full Text
View/download PDF

33. MONDE: MOmentum Neutron DEtector

Author

P. Santa Rita, M.E. Ortiz, Luis Acosta, Adrian Huerta, R. Policroniades, E. Chávez, and F. Favela

Subjects
Physics, History, Photomultiplier, Physics::Instrumentation and Detectors, business.industry, Radioactive source, Detector, Scintillator, Computer Science Applications, Education, Nuclear physics, Optics, Coincident, Neutron detection, Neutron, business, Computer Automated Measurement and Control
Abstract

MONDE is a large area neutron momentum detector, consisting of a 70x160x5 cm3 plastic scintillator slab surrounded by 16 photomultiplier tubes, standard NIM signal processing electronics and a CAMAC data acquisition system. In this work we present data from a characterization run using an external trigger. For that purpose, coincident gamma rays from a 60Co radioactive source were used together with a NaI external detector. First results with an "external" trigger are presented.

Published
2016
Full Text
View/download PDF

34. Experimental oscillator strengths of highly excited levels of Mo II

Author

M.E. Ortiz, J.A. Aguilera, C. Aragón, and R Mayo-García

Subjects
Physics, Electron density, 010504 meteorology & atmospheric sciences, Thermodynamic equilibrium, Plasma, Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, Excited state, 0103 physical sciences, Electron temperature, Fused glass, Atomic physics, 010306 general physics, Spectroscopy, Absolute scale, 0105 earth and related environmental sciences
Abstract

Measurements of 161 oscillator strengths arising from highly excited levels of Mo II are presented, 148 of which are obtained for the first time. These results extend the previous ones already published on lower excited levels of Mo II. A laser-induced plasma generated from a fused glass sample prepared from molybdenum oxide with a Mo atomic concentration of 0.1% was used to obtain the presented radiative parameters via laser-induced breakdown spectroscopy. Measurements were carried out with an electron density of (2.5 ± 0.1) 1017 cm−3 and an electron temperature of 14 400 ± 200 K as the plasma evolved in air at atmospheric pressure. As a consequence, an optically thin plasma and a local thermodynamic equilibrium environment were then present in the measurements. In order to put on an absolute scale the relative intensities, both the combination of branching fractions with measured lifetimes and the comparison of well-known lines using the plasma temperature were carried out. Also, the new results are compared with previously theoretical and obtained experimental values wherever possible.

Published
2016
Full Text
View/download PDF

35. Large-scale distribution of arrival directions of cosmic rays detected above 1018 eV at the Pierre Auger Observatory

Author

D. Martraire, R. Conceição, Miroslav Hrabovský, A. Haungs, M. S. A. B. Leão, J. L. Harton, M. Risse, G. Cataldi, Peter Schiffer, T. Huege, Hernán Gonzalo Asorey, A. Parra, Jeffrey Brack, Olaf Scholten, G. Salina, V. Scherini, G. Torralba Elipe, L. Valore, Amin Aminaei, M. Will, Danielle LaHurd, Olivier Deligny, Humberto Ibarguen Salazar, B. Rouillé-D'Orfeuil, P. Mantsch, Alexandra Saftoiu, Z. Szadkowski, B. Tome, J. Knapp, R. Mussa, A. Lopez Agüera, G. Parente, D. Kruppke-Hansen, Alberto Filevich, Peter Hansen, F. Guarino, John Matthews, Peter Buchholz, J. J. Beatty, Alain Hervé, J. Coppens, H. Dembinski, N. Fazzini, A. Bellétoile, R. M. Kieckhafer, Juan Moreno, Esteban Roulet, C. E. Fracchiolla, D. D'Urso, Corinne Berat, M. Giller, E. Parizot, C. E. Santo, E. Moreno, C. De Donato, Octavian Sima, J. G. Gonzalez, M. Szuba, V. C. Holmes, R. Meyhandan, I.M. Brancus, D. Nosek, T. Yamamoto, Marcio Aparecido Muller, H. Glass, Marco Aglietta, J. D. Swain, J. Rautenberg, O. Wainberg, H. R. Marquez Falcon, Alejandro Almela, I. C. Mariş, Hernan Wahlberg, A. Nelles, D. Lebrun, G. Golup, I. Dutan, N. Kunka, Julien Aublin, D. Allard, D. Heck, J. Maller, Jaime Alvarez-Muñiz, D. Schuster, C. A. Moura, S. L.C. Barroso, Brian Fick, W. C. Brown, K.-H. Becker, M. Pimenta, G. Marsella, A. Weindl, Miguel Mostafá, E. D. Fraenkel, M. del Río, Lu Lu, S. Jansen, G. Rodriguez, Kreso Kadija, J. A.J. Matthews, Xavier Bertou, C. Rühle, A. Insolia, M. Kleifges, D. Zavrtanik, B. Revenu, U. Fröhlich, M. Zimbres Silva, J. R. Vázquez, A. Zepeda, A. Dorofeev, Maria-Teresa Dova, J. Oehlschläger, L. Collica, Samo Stanič, S. Dagoret-Campagne, N. Hollon, V. Verzi, Onofrio A. Catalano, R. J. Lauer, P. Ristori, H. H. Silva Lopez, Dusan Mandat, A. C. Rovero, C. Bleve, R. Alves Batista, Pedro Assis, A. Etchegoyen, I. A. Minaya, B. Keilhauer, Javier Tiffenberg, A. Gorgi, J. Stapleton, D. Harari, Yogendra N. Srivastava, M. I. Micheletti, Jörg R. Hörandel, V. H. Ponce, L. Perrone, Jiri Chudoba, Colin Baus, G. Garilli, Vincenzo Rizi, Jing Zhou, D. Martello, P. Karhan, M. Ziolkowski, Silvia Mollerach, D. B. Tridapalli, O. Martínez Bravo, J. Kleinfeller, J. Allen, Carola Dobrigkeit, M. Plum, R. F. Gamarra, M. L. Díaz Castro, G. Farrar, M. Zavrtanik, N. Nierstenhoefer, S. J. Sciutto, R. Pesce, N. Palmieri, I. Lhenry-Yvon, B. García, Mario Scuderi, L. Villaseñor, S. J. De Jong, J. Schovancova, Markus Roth, Thomas Harrison, P. Wahrlich, R. Gaior, Tobias Winchen, P. Lebrun, K. Kotera, P. Pieroni, Octavian Fratu, B. M. Baughman, Pierre Billoir, D. Thomas, A. Schmidt, G. Navarra, S. Jiraskova, A. Curutiu, Alan Watson, Yingchun Zhu, R. López, Karen S. Caballero-Mora, L. Martin, A. Menshikov, C. Lachaud, B. Wilczynska, Marco Cilmo, M. Avenier, F. Arqueros, B. Wundheiler, H. Schieler, M. Ludwig, J. Alvarez Castillo, B. Caccianiga, I. Allekotte, H. J. Mathes, P. Necesal, Martina Bohacova, Patrick Allison, J. Sorokin, B. Vargas Cárdenas, Gregory R Snow, J. Gitto, N. Scharf, Daniel Kuempel, P. H. Kasper, E. Petermann, Maurice Stephan, L. Nožka, F. Diogo, J. Pȩkala, L. Caramete, K. Weidenhaupt, Martin Erdmann, M. Prouza, Carlos Escobar, M. Tartare, Miroslav Pech, Alina Mihaela Badescu, R. M. de Almeida, Antonella Castellina, J. F. Valdés Galicia, G. De La Vega, T. Suomijärvi, J. Pallotta, J. R. T. de Mello Neto, E. J. Quel, I. De Mitri, A. Gascon Bravo, D. Nitz, F. Suarez, Thomas Hebbeker, E. Kemp, Pavel Horvath, Luis A. Anchordoqui, A. Tonachini, D. Monnier Ragaigne, A. F. Barbosa, P. Abreu, G. Tristram, D. Ravignani, A. Chiavassa, Rémi Bardenet, G. Cocciolo, M. Palatka, P. W. Younk, Roger W Clay, H. Lyberis, A. Smialkowski, C. Pfendner, M. S. Sutherland, Sergio Dasso, W. Tkaczyk, Mariangela Settimo, B. Zamorano Garcia, K. H. Kampert, Alexey Yushkov, A. Cordier, S. Maldera, D. Garcia-Gamez, Béatrice Fuchs, Niraj Dhital, S. T. Garcia Roca, I. Valiño, K. B. Barber, Petr Travnicek, H. Martinez, A. van Vliet, A. Italiano, D. Huber, P.F. Gómez Vitale, I. Zaw, L. R. Wiencke, Sasa Micanovic, H. Blümer, M. Platino, Azadeh Keivani, M. Monasor, J. Rodriguez Rojo, P. Goncalves, J. Lozano Bahilo, Segev BenZvi, J. Bäuml, Rossella Caruso, V. Pirronello, Piotr Homola, M. Ambrosio, P. Facal San Luis, A. Lucero, G. La Rosa, F.G. Schröder, Sofia Andringa, Iuri Muniz Pepe, J. Neuser, C. Jarne, M. A. Leigui de Oliveira, R. Tcaciuc, Juan Manuel Figueira, A. G. Mariazzi, M. Ave, Ivone F. M. Albuquerque, Ke Fang, M. Gómez Berisso, R. C. Shellard, W. Docters, A. Criss, W. Rodrigues de Carvalho, N. T. Thao, A. Petrolini, M. Pontz, S. Le Coz, Francisco J. Blanco, Enrique Zas, G. Matthiae, Corbin Covault, Y. Petrov, S. Westerhoff, C. L. Williams, H. M. Spinka, O. Krömer, I. Katkov, F. Montanet, J. C. dos Anjos, C. Di Giulio, Bruno Daniel, Fernando Contreras, J. W. Cronin, P. T. Nhung, Petr Schovanek, M. Wommer, A. Porcelli, T. Yapici, J. J. Masías Meza, Ernesto Arganda, F. Gomez Albarracin, D. Maurel, S. Fliescher, G. Toma, Lino Miramonti, V. Marin, Luca Latronico, D. Garcia-Pinto, A. C. Fauth, Antonio Bueno, Sergio Pastor, M. Josebachuili, Richard Dallier, Nataliia Borodai, G. P. Guedes, C. J.W.P. Timmermans, M. D. Rodríguez-Frías, H. Schoorlemmer, Kai Daumiller, Carla Bonifazi, Jose A. Bellido, L. Tomankova, B. J. Whelan, A. Tapia, Gualberto Avila, A. Shadkam, T. Rossler, Jaime Rosado, H. Gemmeke, R. Cester, A. F. Grillo, Juan Carlos D'Olivo, M. Unger, M. Blanco, T. Pierog, Philipp Mertsch, A.M. van den Berg, Darko Veberič, M.E. Ortiz, B. Morales, Balázs Kégl, A. D. Supanitsky, I. Rodriguez Cabo, P. L. Ghia, Ralf Ulrich, F. Ionita, P. Brogueira, S. Gambetta, R. Piegaia, S. Navas, M. Melissas, Michael Urban, J. Chauvin, R. A. Vázquez, A. Filipčič, R. Bonino, Paul Sommers, F. Sanchez, Angela V. Olinto, F. Sarazin, S. Petrera, Marc Weber, C. Macolino, C. Hojvat, Jan Ebr, P. Gouffon, P. N. Dong, J. K. Kulbartz, M. J. Cooper, A. Segreto, M. De Domenico, Günter Sigl, H.O. Klages, S. Messina, A. P. Ferguson, Maria Rita Coluccia, Radomir Smida, J. Chirinos Diaz, V. de Souza, L. Nellen, C. Morello, K. D. de Vries, Matthias Balzer, Peter L. Biermann, Paolo Privitera, M. Gold, H. Rivera, J. C. Marin, Iván Sidelnik, H. Cook, Eun-Joo Ahn, S. van Velzen, D. Maurizio, C. Aramo, Pham Ngoc Diep, Heino Falcke, L. Buroker, J. Vicha, G. Wieczorek, F. Salesa Greus, C. Meurer, E. Trovato, Markus Ahlers, B. Gookin, E. M. Santos, S. H. Cheng, Bruce R. Dawson, P.O. Mazur, E. Varela, N. Griffith, R. E. Burton, Y. Guardincerri, G. Müller, R. Bruijn, M. C. Maccarone, L. Molina-Bueno, D. Melo, David Walz, D. Pakk Selmi-Dei, R. Sato, Marcus Niechciol, F. Werner, R. Pelayo, S. Querchfeld, J. L. Kelley, J. L. Navarro, L. Niemietz, N. Pacheco, J. Roberts, F. Salamida, J. Stasielak, S. Coutu, Subir Sarkar, Denise Boncioli, German Ros, M. Videla, G. Yuan, Matias Tueros, E. Grashorn, S. Riggi, T. Antičić, S. Grebe, R. Squartini, T. Paul, E. Menichetti, G. Medina-Tanco, G. van Aar, L. del Peral, Moritz Münchmeyer, A. Creusot, O. Ravel, G. C. Hill, Ralph Engel, D. H. Koang, W. J. M. de Mello Junior, J. Rodriguez Martino, K. Louedec, J. Ridky, T. Susa, A. Stutz, O. Taşcǎu, C. J. Todero Peixoto, Jose Chinellato, N. Krohm, B. Sarkar, P. Lautridou, A. Widom, J. Espadanal, H. Wilczyński, A. Letessier-Selvon, Lorenzo Cazon, Elton J. G. Santos, K. Link, Research unit Nuclear & Hadron Physics, Research unit Astroparticle Physics, P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I. F. M., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Antiči'C, Aramo, Carla, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman, J., Bäuml, C., Bau, J. J., Beatty, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, L., Buroker, R. E., Burton, K. S., Caballero Mora, B., Caccianiga, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chirinos Diaz, J., Chudoba, Cilmo, Marco, R. W., Clay, G., Cocciolo, L., Collica, M. R., Coluccia, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, I., De Mitri, V., de Souza, K. D., de Vrie, L., del Peral, M., del Río, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, M. L., Díaz Castro, P. N., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D'Urso, Domenico, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, B., Fick, J. M., Figueira, A., Filevich, A., Filipčič, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, H., Gemmeke, P. L., Ghia, M., Giller, J., Gitto, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, J. G., Gonzalez, B., Gookin, A., Gorgi, P., Gouffon, E., Grashorn, S., Grebe, N., Griffith, A. F., Grillo, Y., Guardincerri, Guarino, Fausto, G. P., Guede, P., Hansen, D., Harari, T. A., Harrison, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, G. C., Hill, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, F., Ionita, A., Italiano, S., Jansen, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, D., Lahurd, L., Latronico, R., Lauer, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mari, H. R., Marquez Falcon, G., Marsella, D., Martello, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, J. J., Masías Meza, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, S., Messina, C., Meurer, R., Meyhandan, S., Mi'Canovi'C, M. I., Micheletti, I. A., Minaya, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, M., Mostafá, C. A., Moura, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, M., Niechciol, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nožka, J., Oehlschläger, A., Olinto, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pe¸kala, R., Pelayo, I. M., Pepe, L., Perrone, R., Pesce, E., Petermann, S., Petrera, A., Petrolini, Y., Petrov, C., Pfendner, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, V. H., Ponce, M., Pontz, A., Porcelli, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, W., Rodrigues de Carvalho, G., Rodriguez, I., Rodriguez Cabo, J., Rodriguez Martino, J., Rodriguez Rojo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d'Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sánchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, O., Sima, A., 'Smiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y. N., Srivastava, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., Šuša, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Taşcău, R., Tcaciuc, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, G., Torralba Elipe, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, Valore, Laura, G., van Aar, A. M., van den Berg, S., van Velzen, A., van Vliet, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, B. J., Whelan, A., Widom, G., Wieczorek, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, M., Wommer, B., Wundheiler, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano Garcia, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), PIERRE AUGER, T., Antičić, C., Aramo, B., Baughman f, R., Bruijn i, M., Cilmo, Cocciolo, Giuseppe, Coluccia, MARIA RITA, DE MITRI, Ivan, D., D'Urso, E. D., Fraenkel!, F., Guarino, Marsella, Giovanni, Martello, Daniele, S., Mićanović, G., Navarra ‡, J., Pękala, Perrone, Lorenzo, F., SÃ! ¡nchez, Scherini, Viviana, S., Schulte, A., Śmiałkowski, L., Valore, T., Yamamoto a, I., Zaw h, A., Zepeda b, M. Ziolkowski, ., Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), APC - Astrophysique des Hautes Energies (APC - AHE), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)

Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Radiación Cósmica, Astronomy, Milky Way, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics, EXTENSIVE AIR-SHOWERS, SURFACE DETECTOR, 01 natural sciences, GALACTIC MAGNETIC-FIELDS, Auger, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], cosmic rays, Observatory, 0103 physical sciences, astroparticle physics, Anisotropy, 010303 astronomy & astrophysics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Ciencias Exactas, High Energy Astrophysical Phenomena (astro-ph.HE), Astroparticle physics, Physics, Pierre Auger Observatory, ANISOTROPY, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Física, Astronomy and Astrophysics, ENERGY-SPECTRUM, Ultra-High Energy Cosmic Rays, Pierre Auger Observatory, Large Scale Anisotropies, Space and Planetary Science, Experimental High Energy Physics, ROTATION, ARRAY, Física nuclear, Right ascension, Astrophysics - High Energy Astrophysical Phenomena
Abstract

A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 1018 eV at the Pierre Auger Observatory is presented. This search is performed as a function of both declination and right ascension in several energy ranges above 1018 eV, and reported in terms of dipolar and quadrupolar coefficients. Within the systematic uncertainties, no significant deviation from isotropy is revealed. Assuming that any cosmic-ray anisotropy is dominated by dipole and quadrupole moments in this energy range, upper limits on their amplitudes are derived. These upper limits allow us to test the origin of cosmic rays above 1018 eV from stationary Galactic sources densely distributed in the Galactic disk and predominantly emitting light particles in all directions., Facultad de Ciencias Exactas

Published
2012
Full Text
View/download PDF

36. Measurement of the Proton-Air Cross Section ats=57 TeVwith the Pierre Auger Observatory

Author

Miguel Mostafá, A. F. Barbosa, E. Moreno, J. F. Valdés Galicia, I. De Mitri, Dariusz Gora, E. Varela, N. Griffith, A. Nelles, Christopher Morris, Jaime Alvarez-Muñiz, B. García, Mario Scuderi, Tobias Winchen, O. Tascau, P. Lebrun, R. López, Karen S. Caballero-Mora, D. Schuster, Lu Lu, R. E. Burton, T. Rossler, M. A. Leigui de Oliveira, R. Tcaciuc, F. Montanet, J. C. dos Anjos, H. Schieler, M. Ludwig, Martin Erdmann, Antonella Castellina, L. Molina-Bueno, D. Melo, M.E. Ortiz, S. Grebe, D. Garcia-Pinto, David Walz, R. Squartini, B. Keilhauer, D. B. Tridapalli, J. Allen, M. Tartare, M. Prouza, M. Ave, Kai Daumiller, M. Grigat, Ralf Ulrich, P. Brogueira, Yingchun Zhu, M. Gómez Berisso, R. C. Shellard, J. Kleinfeller, T. Paul, D. Pakk Selmi-Dei, M. Risse, R. Sato, Paul Sommers, P. Gouffon, M. S. A. B. Leão, N. Scharf, Roger W Clay, S. J. Sciutto, R. Pesce, W. Docters, P. Abreu, B. Vargas Cárdenas, D. Ravignani, M. Avenier, L. Nožka, M. Zavrtanik, E. Menichetti, Daniel Kuempel, Carlos Escobar, T. Huege, M. Will, M. J. Cooper, J. D. Hague, M. De Domenico, H. J. Mathes, G. De La Vega, Jose Chinellato, J. Rodriguez Rojo, F.G. Schröder, Enrique Zas, C. Di Giulio, Fernando Contreras, D. Allard, P. Goncalves, B. Revenu, U. Fröhlich, J. R. Vázquez, D. Garcia-Gamez, R. M. Kieckhafer, Juan Moreno, J. Rautenberg, O. Wainberg, A. Creusot, W. C. Brown, A. Cordier, S. Maldera, Ivone F. M. Albuquerque, N. T. Thao, D. Warner, R. Bruijn, Richard Dallier, J. L. Navarro, P. L. Ghia, C. Macolino, C. Hojvat, Jan Ebr, Daniel Gonzalez, J. K. Kulbartz, H.O. Klages, S. Mueller, J. Schovancova, G. Parente, H. R. Marquez Falcon, J. Lozano Bahilo, Segev BenZvi, Corbin Covault, Y. Petrov, Geraldina Golup, S. Fliescher, Lino Miramonti, M. D. Rodríguez-Frías, M. Blanco, P. Karhan, S. Navas, A. Schmidt, M. Melissas, Jörg R. Hörandel, S. Gambetta, M. Wommer, R. Piegaia, I. Rodriguez-Cabo, C. Rühle, Markus Roth, E. Kemp, A. Tamashiro, D. Monnier Ragaigne, H. Lyberis, C. Pfendner, M. Platino, M. Monasor, V. H. Ponce, A. Śmiałkowski, Francisco J. Blanco, F. Gomez Albarracin, H. H. Silva Lopez, Dusan Mandat, M. Pimenta, M. Zimbres Silva, J. Stapleton, Mariangela Settimo, K. H. Kampert, Alexey Yushkov, G. Medina-Tanco, L. del Peral, A. Parra, Jeffrey Brack, Olaf Scholten, O. Ravel, Humberto Ibarguen Salazar, W. J. M. de Mello Junior, J. Rodriguez Martino, K. Louedec, C. De Donato, G. Navarra, P. Lautridou, C. A. Moura, S. L.C. Barroso, T. Yamamoto, S. Dagoret-Campagne, Brian Fick, Samo Stanič, A. Letessier-Selvon, Lorenzo Cazon, R. Gaior, J. Petrovic, F. Suarez, Thomas Hebbeker, Sergio Dasso, J. Stasielak, S. Coutu, M. Nyklicek, Subir Sarkar, A. Gascon, Denise Boncioli, German Ros, B. J. Whelan, D. Maurizio, C. Aramo, Pham Ngoc Diep, M. Videla, Heino Falcke, J. Vicha, G. Wieczorek, L. Caramete, Elton J. G. Santos, K. Link, Maria Rita Coluccia, T. Yapici, R. Conceição, Miroslav Hrabovský, A. Haungs, J. L. Harton, P. Mantsch, Z. Szadkowski, A. Tapia, H. Gemmeke, M. Unger, Luis A. Anchordoqui, D. Nitz, A. Chiavassa, K. B. Barber, L. R. Wiencke, J. G. Gonzalez, V. C. Holmes, D. Lebrun, I. Dutan, T. Suomijärvi, J. Pallotta, E. J. Quel, D. Heck, F. Kuehn, M. del Río, Béatrice Fuchs, Niraj Dhital, I. Valiño, J. Neuser, Ernesto Arganda, Onofrio A. Catalano, Y. Guardincerri, J. L. Kelley, A. Horneffer, P. Petrinca, B. Rouillé-D'Orfeuil, B. Tome, N. Nierstenhoefer, Balázs Kégl, A. D. Supanitsky, Hernán Asorey, H. Martinez, C. Lachaud, A. Dorofeev, R. A. Vázquez, I. Lhenry-Yvon, B. Zamorano, Warner A. Miller, A. Almeda, F. Salesa Greus, H. Blümer, Piotr Homola, P. Facal San Luis, G. Yuan, E. Grashorn, S. Riggi, S. Le Coz, J. Knapp, A. Lopez Agüera, Rémi Bardenet, Petr Travnicek, A. Italiano, M. I. Micheletti, A. G. Mariazzi, C. Robledo, R. D. Parsons, Alberto Filevich, Peter Hansen, N. Phan, J. A.J. Matthews, Xavier Bertou, A. Zepeda, C. Meurer, Pedro Assis, A. Etchegoyen, Javier Tiffenberg, E. Trovato, L. Villaseñor, L. Martin, Diego Harari, A. Filipčič, F. Ionita, T. Antičić, C. L. Williams, D. Nosek, U. Giaccari, F. Guarino, John Matthews, A. Gorgi, Peter Buchholz, G. Salina, F. Sanchez, Olivier Deligny, A. P. Ferguson, G. Decerprit, H. M. Spinka, G. Müller, B. Gookin, F. Sarazin, O. Krömer, Eun-Joo Ahn, V. Pirronello, M. Szuba, Petr Schovanek, H. Glass, Martina Bohacova, Patrick Allison, Iuri Muniz Pepe, S. Petrera, Marc Weber, B. Wundheiler, S. J. De Jong, Marco Aglietta, L. Valore, Amin Aminaei, C. Jarne, G. Rodriguez, E. M. Santos, J. Sorokin, Gregory R Snow, P. H. Kasper, G. Matthiae, S. H. Cheng, Pierre Billoir, C. G. Tavera Ruiz, N. Palmieri, K. H. Becker, Bruce R. Dawson, S. Schulte, D. Thomas, A. Curutiu, Antonio Bueno, G. Marsella, P.O. Mazur, E. Petermann, Miroslav Pech, Sergio Pastor, M. Josebachuili, M. Ambrosio, A. Petrolini, A. Weindl, Pavel Horvath, L. Nellen, A. Lemiere, A. Menshikov, R. Pelayo, Kreso Kadija, B. R. Becker, D. Kruppke-Hansen, J. Oehlschläger, M. S. Sutherland, A.M. van den Berg, J. Pȩkala, Gualberto Avila, Darko Veberič, S. Querchfeld, C. Morello, K. D. de Vries, Matthias Balzer, Moritz Münchmeyer, C. J.W.P. Timmermans, S. R. Gozzini, A. Bellétoile, Ingomar Allekotte, S. Harmsma, N. Hollon, M. Tueros, A. C. Rovero, D. K. Tiwari, V. Verzi, L. Niemietz, Ralph Engel, Marcio Aparecido Muller, Sofia Andringa, D. H. Koang, J. Ridky, J. R. T. de Mello Neto, J. Bäuml, Rossella Caruso, C. E. Fracchiolla, A. Guzman, C. Bleve, H. Schoorlemmer, N. Pacheco, T. Susa, D. D'Urso, Corinne Berat, F. Salamida, I. Fajardo Tapia, K. Weidenhaupt, Angela V. Olinto, A. Lucero, G. La Rosa, M. L. Díaz Castro, M. Giller, Peter L. Biermann, A. Stutz, G. Farrar, J. Roberts, E. Parizot, C. E. Santo, I. Zaw, N. Kunka, Domenico Tegolo, T. Bäcker, W. Tkaczyk, Paolo Privitera, G. Tristram, P. N. Dong, R. Bonino, M. Gold, Maria-Teresa Dova, L. Perrone, Jiri Chudoba, H. Rivera, Maurice Stephan, Azadeh Keivani, Thomas Harrison, J. C. Marin, K. Kotera, Vincenzo Rizi, D. Martello, W. Rodrigues de Carvalho, A. Tonachini, P. Pieroni, J. W. Cronin, B. M. Baughman, Iván Sidelnik, F. Arqueros, P. Necesal, H. Cook, M. Ziolkowski, M. Palatka, O. Martínez Bravo, P. W. Younk, Nataliia Borodai, Carola Dobrigkeit, R. F. Gamarra, R. Mussa, J. J. Beatty, P. Wahrlich, Silvia Mollerach, Alain Hervé, J. Coppens, H. Dembinski, Alan Watson, N. Fazzini, J. Alvarez Castillo, P. T. Nhung, A. Ferrero, A. C. Fauth, Carla Bonifazi, Jose A. Bellido, Jaime Rosado, R. M. de Almeida, R. Cester, B. Morales, S. Jiraskova, I. C. Mariş, Hernan Wahlberg, Julien Aublin, E. D. Fraenkel, R. J. Lauer, P. Ristori, V. M. Olmos-Gilbaja, G. Cataldi, Peter Schiffer, V. Scherini, K. Gesterling, J. D. Swain, M. G. Winnick, C. J. Todero Peixoto, S. Westerhoff, A. Insolia, M. Kleifges, D. Zavrtanik, N. Krohm, B. Sarkar, J. Espadanal, H. Wilczyński, B. Wilczynska, Sasa Micanovic, A. Criss, M. Pontz, V. Marin, G. P. Guedes, A. Shadkam, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, Esteban Roulet, Philipp Mertsch, Michael Urban, J. Chauvin, A. Segreto, Günter Sigl, Radomir Smida, J. Chirinos Diaz, and V. de Souza

Subjects
Pierre Auger Observatory, Physics, Proton, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, 01 natural sciences, law.invention, Auger, Nuclear physics, Cross section (physics), law, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Nuclear Experiment, 010306 general physics, Nucleon, Collider
Abstract

We report a measurement of the proton-air cross section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the depths of shower maxima observed with the Pierre Auger Observatory: systematic uncertainties are studied in detail. Analyzing the tail of the distribution of the shower maxima, a proton-air cross section of [505 +/- 22(stat)(-36)(+28)(syst)] mb is found.

Published
2012
Full Text
View/download PDF

37. Erratum to 'The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray Showers detected by the Pierre Auger Observatory' [Astroparticle Physics 35 (2011) 266-276]

Author

Jaime Alvarez-Muñiz, D. Schuster, M. Blanco, A. C. Fauth, L. Valore, Amin Aminaei, A. F. Barbosa, Martina Bohacova, H. Lyberis, B. Keilhauer, D. B. Tridapalli, Patrick Allison, Azadeh Keivani, Carla Bonifazi, J. Allen, S. J. Sciutto, R. Pesce, B. Kégl, K. Louedec, Mariangela Settimo, Jose A. Bellido, E. Varela, N. Griffith, I. Zaw, J. Sorokin, Fabian Schmidt, C. Rühle, S. Navas, A. Anzalone, C. E. Fracchiolla, R. A. Vázquez, W. Rodrigues de Carvalho, Corinne Berat, M. Giller, K. H. Kampert, E. Parizot, J. A.J. Matthews, Dariusz Gora, G. Cataldi, M. Ambrosio, R. E. Burton, V. Scherini, A. Lemiere, Jaime Rosado, Alberto Daniel Supanitsky, U. Fröhlich, F. Sarazin, J. W. Cronin, J. Oehlschläger, Xavier Bertou, A. Śmiałkowski, W. Tkaczyk, D. Gonzalez, H. H. Silva Lopez, Dusan Mandat, A. Zepeda, S. Petrera, Marc Weber, H. Blümer, T. Rossler, R. Cester, R. Mussa, J. J. Beatty, Silvia Mollerach, Alain Hervé, J. Coppens, Piotr Homola, P. Facal San Luis, D. Nitz, B. Morales, D. Melo, Markus Roth, Pedro Assis, A. Etchegoyen, Javier Tiffenberg, H. Dembinski, Carola Dobrigkeit, Paulo J. S. Gonçalves, A. Petrolini, R. F. Gamarra, I. Valiño, T. Huege, J. Bäuml, Rossella Caruso, Pietro Oliva, A. Parra, A. Lucero, P. Wahrlich, Miguel Mostafá, N. Fazzini, Nataliia Borodai, M. Videla, G. La Rosa, A. Chiavassa, J. F. Valdés Galicia, I. De Mitri, Julien Aublin, J. D. Swain, B. Wilczynska, C. L. Williams, H. M. Spinka, M. Gold, C. J.W.P. Timmermans, M.E. Ortiz, K. Gesterling, M. G. Winnick, I. C. Mariş, Marcos Santander, Hernan Wahlberg, Alan Watson, A. Horneffer, P. Petrinca, G. Salina, Olivier Deligny, Jörg R. Hörandel, M. Ave, M. Gómez Berisso, O. Krömer, H. Schoorlemmer, Paul Sommers, H. Rivera, E. Santos, D. Allard, D. Pakk Selmi-Dei, R. Sato, O. Tascau, J. R. Vázquez, P.W. Younk, J. G. Gonzalez, V. C. Holmes, D. Lebrun, Pedro Brogueira, C. Meurer, E. D. Fraenkel, E. Trovato, C. J. Todero Peixoto, K. B. Barber, L. R. Wiencke, E. Strazzeri, A. Insolia, M. Kleifges, D. Zavrtanik, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, M. A. Leigui de Oliveira, R. Tcaciuc, F. Montanet, R. C. Shellard, Sasa Micanovic, Maria-Teresa Dova, Ugo Giaccari, P. Gouffon, P. N. Dong, M. J. Cooper, J. D. Hague, F. Sánchez, W. Docters, T. Bäcker, Ralf Ulrich, D. Harari, T. Schmidt, M. De Domenico, J. Alvarez Castillo, K. Link, Miroslav Hrabovský, A. Haungs, I. Dutan, A. Criss, D. Heck, Luis A. Anchordoqui, F. Kuehn, J. Schovancova, P. Ristori, K.-H. Becker, B. Gookin, M. Pimenta, V. M. Olmos-Gilbaja, S. Mueller, I. Lhenry-Yvon, B. Zamorano, Warner A. Miller, J. L. Harton, C. G. Tavera Ruiz, B. J. Whelan, D. Maurizio, C. Lachaud, G. Rodriguez, M. Wommer, H. Schieler, Rémi Bardenet, Petr Travnicek, E. M. Santos, U. Cotti, Hernán Asorey, J. C. Marin, A. Dorofeev, D. Garcia-Pinto, S. H. Cheng, P. Mantsch, Z. Szadkowski, R. Pelayo, N. Krohm, Antonella Castellina, A. Italiano, Domenico Tegolo, M. Ludwig, Bruce R. Dawson, F. Ionita, P.O. Mazur, B. Sarkar, M. S. A. B. Leão, M. Risse, C. De Donato, J. Stapleton, J. L. Navarro, V. H. Ponce, Maria Rita Coluccia, Jose Chinellato, S. Gambetta, A. C. Rovero, Pham Ngoc Diep, L. Perrone, I. Allekotte, Jiri Chudoba, A. G. Mariazzi, G. P. Guedes, M. Avenier, L. Nožka, S. Querchfeld, J. L. Kelley, C. Robledo, M. I. Micheletti, J. Kleinfeller, I. Rodriguez-Cabo, B. Vargas Cárdenas, T. Suomijärvi, L. Caramete, A. Guzman, C. Bleve, J. Pallotta, R. Piegaia, D. K. Tiwari, K. Kotera, E. J. Quel, R. M. de Almeida, J. C. Diaz, Heino Falcke, H. Wilczyński, A. Shadkam, M. Will, L. Villaseñor, S. J. De Jong, M. Zavrtanik, G. Navarra, P. Pieroni, D. Kruppke-Hansen, B. M. Baughman, R. M. Kieckhafer, G. Tristram, N. Nierstenhoefer, L. Winders, S. Grebe, L. Niemietz, Juan Moreno, J. Rautenberg, Niraj Dhital, G. Parente, N. Pacheco, Pierre Billoir, D. Thomas, A. Curutiu, F. Arqueros, P. Necesal, L. Martin, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, O. Wainberg, C. A. Moura, S. L.C. Barroso, T. Yamamoto, Y. Guardincerri, Marcio Aparecido Muller, Carla Aramo, Vincenzo Rizi, A. Letessier-Selvon, D. Martello, J. Vicha, J. Roberts, Brian Fick, I. Fajardo Tapia, Esteban Roulet, Philipp Mertsch, M. Ziolkowski, R. Squartini, D. D'Urso, G. Marsella, G. Decerprit, Aaron S. Chou, T. Paul, P. L. Ghia, Lorenzo Cazon, B. García, Mario Scuderi, Tobias Winchen, W. C. Brown, O. Martínez Bravo, G. Golup, Onofrio A. Catalano, H. R. Marquez Falcon, J. Stasielak, S. Coutu, N. Kunka, B. Tome, H. J. Mathes, Martin Urban, G. Wieczorek, S. Westerhoff, Olivier Ravel, J. R. T. de Mello Neto, E. Menichetti, Iván Sidelnik, P. T. Nhung, M. Nyklicek, R. Gaior, G. Müller, P. Lebrun, R. López, M. Palatka, J. Pe¸kala, Karen S. Caballero-Mora, Rúben Conceição, N. Scharf, R. D. Parsons, J. Chauvin, A. Segreto, J. Petrovic, J. Lozano Bahilo, Segev BenZvi, Günter Sigl, Petr Schovanek, G. De La Vega, G. Medina-Tanco, M. Pontz, Daniel Kuempel, Carlos Escobar, M. C. Maccarone, Corbin Covault, L. del Peral, B. Wundheiler, Pascal Lautridou, P. Schiffer, Radomir Smida, A. Creusot, Y. Petrov, F. Suarez, Thomas Hebbeker, S. Fliescher, Sergio Dasso, Martin Erdmann, Gregory R Snow, P. H. Kasper, E. Kemp, A. Ferrero, W. J. M. de Mello Junior, Lino Miramonti, A. Bellétoile, J. Rodriguez Martino, Subir Sarkar, H. Cook, A. Gascon, Denise Boncioli, V. Pirronello, A. Tamashiro, J. Rodriguez Rojo, G. Matthiae, A. N. Yushkov, M. D. Rodríguez-Frías, A. Cordier, Iuri Muniz Pepe, S. Riggi, V. de Souza, L. Nellen, C. Jarne, M. Tartare, B. R. Becker, S. Schulte, Antonio Bueno, Sergio Pastor, German Ros, Roger W Clay, D. Monnier Ragaigne, S. Harmsma, C. Pfendner, F.G. Schröder, Enrique Zas, Gualberto Avila, F. Salamida, S. Maldera, Angela V. Olinto, C. Di Giulio, Kai Daumiller, M. Grigat, Moritz Münchmeyer, T. Yapici, C. Morello, K. D. de Vries, Fernando Contreras, G. Yuan, H. Martinez, E. Grashorn, Matthias Balzer, Ralph Engel, T. Antičić, D. H. Koang, M. Tueros, J. Ridky, T. Susa, A. Stutz, Ivone F. M. Albuquerque, Peter L. Biermann, S. Dagoret-Campagne, A. Tapia, H. Gemmeke, N. T. Thao, D. Warner, M. Unger, Paolo Privitera, R. Bruijn, N. Phan, Eun-Joo Ahn, C. Macolino, C. Hojvat, Jan Ebr, M. Melissas, J. K. Kulbartz, H.O. Klages, A. P. Ferguson, A.M. van den Berg, Darko Veberič, R. Bonino, P. Karhan, A. Schmidt, E. Petermann, D. García Gámez, Miroslav Pech, M. S. Sutherland, Benoît Revenu, A. Filipcic, S. R. Gozzini, Sofia Andringa, B. Rouillé-D'Orfeuil, J. Knapp, A. Lopez Agüera, Alberto Filevich, Peter Hansen, F. Guarino, John Matthews, Peter Buchholz, M. Szuba, H. Glass, Marco Aglietta, A. Gorgi, M. L. Díaz Castro, G. Farrar, J. C. dos Anjos, N. Palmieri, S. Jiraskova, Vincent Marin, Maurice Stephan, A. Menshikov, B. Fuchs, A. Tonachini, K. Weidenhaupt, M. Prouza, P. Abreu, D. Ravignani, M. Platino, M. Monasor, C. E. Santo, Francisco J. Blanco, F. Gomez Albarracin, Ernesto Arganda, D. Nosek, A. Weindl, Kreso Kadija, N. Hollon, V. Verzi, E. Moreno, Richard Dallier, A. Nelles, Christopher Morris, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, APC - Astrophysique des Hautes Energies (APC - AHE), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), P., Abreu, M., Aglietta, E. J., Ahn, I. F. M., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Castillo, J., Alvarez Muñiz, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Anti??i??, A., Anzalone, C., Aramo, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, T., Bäcker, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman, J., Bäuml, J. J., Beatty, B. R., Becker, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Bohá??ová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, K. S., Caballero Mora, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S. H., Cheng, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, R. W., Clay, M. R., Coluccia, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, I., De Mitri, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, J. C., Diaz, M. L., Díaz Castro, P. N., Diep, C., Dobrigkeit, W., Docter, J. C., D???olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D'Urso, Domenico, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, I., Fajardo Tapia, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, A., Ferrero, B., Fick, A., Filevich, A., Filip??i??, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, D., García Gámez, D., Garcia Pinto, A., Gascon, H., Gemmeke, K., Gesterling, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P., Gonçalve, D., Gonzalez, J. G., Gonzalez, B., Gookin, D., Góra, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, N., Griffith, M., Grigat, A. F., Grillo, Y., Guardincerri, Guarino, Fausto, G. P., Guede, A., Guzman, J. D., Hague, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, A., Horneffer, M., Hrabovský, T., Huege, A., Insolia, F., Ionita, A., Italiano, C., Jarne, S., Jiraskova, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, F., Kuehn, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, P., Lautridou, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Lemiere, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mari, H. R., Marquez Falcon, G., Marsella, D., Martello, L., Martin, H., Martinez, O., Martínez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, C., Meurer, S., Mi??anovi??, M. I., Micheletti, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, C., Morri, M., Mostafá, C. A., Moura, S., Mueller, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, P. T., Nhung, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., No??ka, M., Nyklicek, J., Oehlschläger, A., Olinto, P., Oliva, V. M., Olmos Gilbaja, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, R. D., Parson, S., Pastor, T., Paul, M., Pech, J., Pe¸kala, R., Pelayo, I. M., Pepe, L., Perrone, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, N., Phan, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, C., Robledo, W., Rodrigues de Carvalho, G., Rodriguez, J., Rodriguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d???Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, F., Salamida, H., Salazar, G., Salina, F., Sánchez, M., Santander, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, A., ??mia??kowski, R., ??mída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, J., Stapleton, J., Stasielak, M., Stephan, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., ??u??a, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tamashiro, A., Tapia, M., Tartare, O., Ta??c??u, C. G., Tavera Ruiz, R., Tcaciuc, D., Tegolo, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, D. K., Tiwari, W., Tkaczyk, C. J., Todero Peixoto, B., Tomé, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, Valore, Laura, A. M., van den Berg, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberi??, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczy??ska, H., Wilczy??ski, M., Will, C., William, T., Winchen, L., Winder, M. G., Winnick, M., Wommer, B., Wundheiler, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, and M., Ziolkowski

Subjects
Pierre Auger Observatory, Astroparticle physics, Physics, [PHYS]Physics [physics], [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], 010308 nuclear & particles physics, Astronomy, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astronomy and Astrophysics, Probability density function, Astrophysics, 01 natural sciences, Auger, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], 0103 physical sciences, Experimental High Energy Physics, Ultra-high-energy cosmic ray, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

The Pierre Auger Collaboration... K.B. Barber... J.A. Bellido... R.W. Clay... M.J. Cooper... B.R. Dawson... A.E. Herve... V.C. Holmes... J. Sorokin... P. Wahrlich... B.J. Whelan... M.G. Winnick... et al.

Published
2012
Full Text
View/download PDF

38. Publisher's Note: Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory [Phys. Rev. D 84, 122005 (2011)]

Author

C. Morello, K. D. de Vries, Matthias Balzer, S. L. C. Barroso, E. Moreno, Peter L. Biermann, A. Nelles, Paolo Privitera, Jaime Alvarez-Muñiz, D. Schuster, B. Tome, J. Knapp, A. Lopez Agüera, Lu Lu, D. Nosek, Harsha Blumer, Alberto Filevich, Roberto Mussa, F. Guarino, Eun-Joo Ahn, Peter Buchholz, I. C. Mariş, Domenico Tegolo, François Montanet, M. Szuba, A. Weindl, P. H. Hansen, Mariangela Settimo, Kreso Kadija, I.M. Brancus, Hernan Wahlberg, M. Gómez Berisso, N. Hollon, H. Glass, Marco Aglietta, B. Keilhauer, M. Gold, T. Yapici, D. Newton, H. Rivera, D. B. Tridapalli, J. Allen, R. C. Shellard, J. C. Marin, W. Docters, M. Risse, Jose Chinellato, Iván Sidelnik, D. H. Koang, H. Cook, G. Matthiae, A. N. Yushkov, V. H. Ponce, S. Dagoret-Campagne, A. Widom, Antonio Bueno, Sergio Pastor, M. Josebachuili, L. Perrone, D. Maurel, L. Molina-Bueno, D. Melo, J.R. Hörandel, M. Wommer, S. J. Sciutto, R. Pesce, B. J. Whelan, H. J. Mathes, E. D. Fraenkel, I. Rodriguez-Cabo, I. Lhenry-Yvon, J. J. Beatty, Gualberto Avila, Yingchun Zhu, M. L. Díaz Castro, C. E. Fracchiolla, G. Farrar, B. Zamorano, Sebastian Schulte, M. Avenier, Piotr Homola, Angela V. Olinto, R. J. Lauer, P. Ristori, A. Letessier-Selvon, J. Coppens, H. Dembinski, N. Fazzini, Thomas Harrison, David Walz, P. Facal San Luis, L. Caramete, K. Kotera, C. G. Tavera Ruiz, G. Parente, Lorenzo Cazon, D. Pakk Selmi-Dei, G. De La Vega, C. Rühle, G. Marsella, P. Pieroni, Maurice Stephan, T. Paul, A. Tapia, S. Le Coz, F. Arqueros, P. Necesal, D. Allard, H. R. Marquez Falcon, Darko Veberic, L. Valore, Amin Aminaei, E. Petermann, R. Gaior, R. Sato, Markus Roth, Martina Bohacova, Bruce Rafael Mellado Garcia, Pham Ngoc Diep, Miroslav Pech, C. L. Williams, H. M. Spinka, H. H. Silva Lopez, H. Gemmeke, Octavian Fratu, H. Martinez, Patrick Allison, M. Unger, A. Tonachini, J. Sorokin, A. Hervé, B. Revenu, Ph. Lebrun, F. Werner, Dusan Mandat, B. R. Becker, I. Zaw, B. Wilczynska, Julien Aublin, R. Pelayo, Alejandro Almela, G. Cataldi, M. Ambrosio, V. Scherini, Alexandra Saftoiu, Heino Falcke, Mario Scuderi, Tobias Winchen, P.F. Gómez Vitale, B. Caccianiga, I. Allekotte, Karen S. Caballero-Mora, P. Brogueira, J. Rodriguez Rojo, Pavel Horvath, M. S. Sutherland, W. J. M. de Mello, Paul Sommers, J. Lozano Bahilo, Segev BenZvi, P. Goncalves, Moritz Münchmeyer, M. Palatka, Günter Sigl, P. W. Younk, P. Gouffon, J. Vicha, J. Chudoba, G. Wieczorek, P. N. Dong, M. J. Cooper, M. Ludwig, J. Ridky, D. Maurizio, J. L. Navarro, Daniel Gonzalez, U. Fröhlich, J. R. Vázquez, Enrique Zas, C. Di Giulio, E. Grashorn, Martin Erdmann, D. Nitz, Jan Pękala, A. Chiavassa, D. Garcia-Gamez, D. Harari, N. Scharf, T. Susa, van den Ad M Berg, Carola Dobrigkeit, Sofia Andringa, A. Keivani, M. De Domenico, K. B. Barber, R. F. Gamarra, D. Lebrun, M. Tartare, Fernando Contreras, J. Schovancova, A. Porcelli, Ernesto Arganda, P. Wahrlich, Corbin Covault, Roger W Clay, Lino Miramonti, S. Querchfeld, J. L. Kelley, Y. Petrov, Sasa Micanovic, A. Stutz, J. Bäuml, Rossella Caruso, M. T. Dova, A. Criss, S. Fliescher, A. Gorgi, A. Lucero, G. La Rosa, M.E. Ortiz, L. R. Wiencke, R. Engel, K.-H. Becker, M. Pimenta, A. C. Fauth, R. Rebolo Lopez, C. Meurer, A. Insolia, M. Kleifges, D. Zavrtanik, A.D. Supanitsky, E. Kemp, Maria Rita Coluccia, C. Macolino, M. Pontz, C. Hojvat, Alan Watson, Alina Mihaela Badescu, M. Zimbres Silva, T. Bäcker, Yogendra N. Srivastava, M. I. Micheletti, J. Stapleton, M. Prouza, A. Smialkowski, M. Monasor, A. F. Barbosa, P. Karhan, G. Salina, Olivier Deligny, D. Monnier Ragaigne, M. D. Rodríguez-Frías, M. Blanco, L. Niemietz, J. Alvarez Castillo, Elton J. G. Santos, K. Link, Carla Bonifazi, F. Suarez, Thomas Hebbeker, T. Rossler, Valerio Verzi, G. Müller, Sergio Dasso, A. Bellétoile, Brian Fick, Jose A. Bellido, Jan Ebr, K. H. Kampert, G. P. Guedes, Octavian Sima, J. G. Gonzalez, Markus Ahlers, E. Varela, N. Griffith, N. Palmieri, R. Conceição, A. Schmidt, Vincent Marin, Miroslav Hrabovský, Ugo Giaccari, Pascal Lautridou, J. Chauvin, V. C. Holmes, P. Schiffer, I. Dutan, A. Shadkam, S. Navas, A. Haungs, R. E. Burton, M. Melissas, Ralf Ulrich, J. K. Kulbartz, J. L. Harton, N. Pacheco, R. A. Vázquez, A. Menshikov, Martin Will, C. De Donato, D. Heck, M. Weber, A. F. Grillo, Juan Carlos D'Olivo, Jaime Rosado, T. Pierog, V. Pirronello, J. Oehlschläger, F. Kuehn, M. del Río, Philipp Mertsch, B. Rouillé-d'Orfeuil, F. Sanchez, P. Mantsch, Z. Szadkowski, F. Sarazin, Carl Pfendner, P. L. Ghia, J. Roberts, Iuri Muniz Pepe, R. Cester, S. Petrera, S. Riggi, O. Tascau, K. Weidenhaupt, S. Gambetta, Michael Urban, A. Petrolini, H.O. Klages, A. C. Rovero, C. Jarne, S. Harmsma, L. Nožka, R. Piegaia, B. Morales, P. Abreu, S. Jiraskova, H. Schieler, D. Ravignani, A. Segreto, F. Diogo, Y. Guardincerri, S. Sarkar, F. Salamida, M. Zavrtanik, C. J.W.P. Timmermans, S. Maldera, A. Guzmán, C. Lachaud, Antonella Castellina, Carla Aramo, Vincenzo Rizi, Marcus Niechciol, H. Lyberis, R. M. de Almeida, A. Dorofeev, B. Vargas Cárdenas, D. Martello, M. Ziolkowski, T. Suomijärvi, J. Pallotta, J. Stasielak, S. Coutu, O. Krömer, Silvia Mollerach, O. Martínez Bravo, J. A.J. Matthews, Xavier Bertou, J. Chirinos Diaz, L. Villaseñor, M. Platino, L. Martin, E. J. Quel, M. Ave, V. de Souza, M. Nyklicek, Francisco J. Blanco, N. Nierstenhoefer, G. R. Gonzalvo Rodriguez, S. Westerhoff, A. P. Ferguson, Béatrice Fuchs, Niraj Dhital, I. Valiño, F. Gomez Albarracin, Kai Daumiller, M. Grigat, Petr Schovanek, J. Neuser, A. Zepeda, J.E. Swain, P. T. Nhung, Pedro Assis, T. Huege, Hernán Gonzalo Asorey, A. Parra, A. Etchegoyen, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, Javier Tiffenberg, Miguel Mostafa, G. Navarra, P. Petrinca, C. A. Moura, T. Yamamoto, Samo Stanič, D. D'Urso, R. Bonino, A. Gascon, J. Kleinfeller, Daniel Kuempel, Carlos Escobar, Denise Boncioli, A. Cordier, Ivone F. M. Albuquerque, N. T. Thao, German Ros, Richard Dallier, M. Videla, G. Yuan, Matias Tueros, T. Antičić, B. M. Baughman, E. Trovato, D. Kruppke-Hansen, B. Gookin, E. M. Santos, Marcio Aparecido Muller, S. H. Cheng, Bruce R. Dawson, P.O. Mazur, I. Fajardo Tapia, G. Golup, R. Bruijn, N. Kunka, G. Tristram, J. A. J. Matthews, F. Salesa Greus, W. Rodrigues de Carvalho, J. W. Cronin, G. Toma, Andrej Filipcic, S. Grebe, Nataliia Borodai, Esteban Roulet, Corinne Berat, M. Giller, Luis A. Anchordoqui, E. Parizot, C. E. Santo, R. Squartini, W. Tkaczyk, S. J. De Jong, Rémi Bardenet, Petr Travnicek, Pierre Billoir, D. Thomas, A. Curutiu, Radomir Smida, Olivier Ravel, A. Italiano, D. Huber, Frank G. Schröder, J. R. T. de Mello Neto, A. G. Mariazzi, G. Medina-Tanco, A. Horneffer, M. S. A. B. Leão, C. J. Todero Peixoto, Harm Schoorlemmer, Balázs Kégl, F. Ionita, N. Krohm, B. Sarkar, R. M. Kieckhafer, Juan Moreno, A. Creusot, J. Rautenberg, J. Espadanal, O. Wainberg, H. Wilczyński, L. del Peral, W. C. Brown, J. Rodriguez Martino, J. F. Valdés Galicia, I. De Mitri, K. Louedec, S. T. Garcia Roca, E. Menichetti, M. A. Leigui de Oliveira, R. Tcaciuc, J. C. dos Anjos, D. Garcia-Pinto, Onofrio A. Catalano, Carla Bleve, B. Wundheiler, Gregory R Snow, P. H. Kasper, L. Nellen, Research unit Astroparticle Physics, P., Abreu, M., Aglietta, M., Ahler, E., Ahn, I., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Anticic, C., Aramo, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, T., Bäcker, A., Badescu, M., Balzer, K., Barber, A., Barbosa, R., Bardenet, S., Barroso, B., Baughman, J., Bäuml, J., Beatty, B., Becker, K., Becker, A., Bellétoile, J., Bellido, S., Benzvi, C., Berat, X., Bertou, P., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Bohácová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W., Brown, R., Bruijn, P., Buchholz, A., Bueno, R., Burton, K., Caballero Mora, B., Caccianiga, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S., Cheng, A., Chiavassa, J., Chinellato, J., Chirinos Diaz, J., Chudoba, R., Clay, M., Coluccia, R., Conceição, F., Contrera, H., Cook, M., Cooper, J., Coppen, A., Cordier, S., Coutu, C., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, S., Dasso, K., Daumiller, B., Dawson, R., de Almeida, M., De Domenico, C., De Donato, S., de Jong, G., De La Vega, W., de Mello, J., de Mello Neto, I., De Mitri, V., de Souza, K., de Vrie, L., del Peral, M., del Río, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, M., Díaz Castro, P., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J., D???olivo, P., Dong, A., Dorofeev, J., dos Anjo, M., Dova, D'Urso, Domenico, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, I., Fajardo Tapia, H., Falcke, G., Farrar, A., Fauth, N., Fazzini, A., Ferguson, B., Fick, A., Filevich, A., Filipcic, S., Fliescher, C., Fracchiolla, E., Fraenkel, O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, R., Gamarra, S., Gambetta, B., García, S., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, A., Gascon, H., Gemmeke, P., Ghia, U., Giaccari, M., Giller, H., Gla, M., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P., Gómez Vitale, P., Gonçalve, D., Gonzalez, J., Gonzalez, B., Gookin, A., Gorgi, P., Gouffon, E., Grashorn, S., Grebe, N., Griffith, M., Grigat, A., Grillo, Y., Guardincerri, Guarino, Fausto, G., Guede, A., Guzman, P., Hansen, D., Harari, S., Harmsma, T., Harrison, J., Harton, A., Haung, T., Hebbeker, D., Heck, A., Herve, C., Hojvat, N., Hollon, V., Holme, P., Homola, J., Hörandel, A., Horneffer, P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, F., Ionita, A., Italiano, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K., Kampert, P., Karhan, P., Kasper, B., Kégl, B., Keilhauer, A., Keivani, J., Kelley, E., Kemp, R., Kieckhafer, H., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, F., Kuehn, D., Kuempel, J., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, R., Lauer, P., Lautridou, S., Le Coz, M., Leão, D., Lebrun, P., Lebrun, M., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A., Mariazzi, J., Marin, V., Marin, I., Mari, H., Marquez Falcon, G., Marsella, D., Martello, L., Martin, H., Martinez, O., Martínez Bravo, H., Mathe, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, P., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, C., Meurer, S., Micanovic, M., Micheletti, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J., Moreno, M., Mostafá, C., Moura, M., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, J., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, D., Newton, P., Nhung, M., Niechciol, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., No??ka, M., Nyklicek, J., Oehlschläger, A., Olinto, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pekala, R., Pelayo, I., Pepe, L., Perrone, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, C., Pfendner, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, V., Ponce, M., Pontz, A., Porcelli, P., Privitera, M., Prouza, E., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, W., Rodrigues de Carvalho, G., Rodriguez, J., Rodriguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d???Orfeuil, E., Roulet, A., Rovero, C., Rühle, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sánchez, C., Santo, E., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R., Shellard, I., Sidelnik, G., Sigl, H., Silva Lopez, O., Sima, A., Smialkowski, R., ??mída, G., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y., Srivastava, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A., Supanitsky, T., ??u??a, M., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Tascau, C., Tavera Ruiz, R., Tcaciuc, D., Tegolo, N., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C., Todero Peixoto, G., Toma, B., Tomé, A., Tonachini, P., Travnicek, D., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J., Valdés Galicia, I., Valiño, Valore, Laura, A., van den Berg, E., Varela, B., Vargas Cárdena, J., Vázquez, R., Vázquez, D., Veberic, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, B., Whelan, A., Widom, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, M., Will, C., William, T., Winchen, M., Wommer, B., Wundheiler, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, Yushkov, Alexey, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, Y., Zhu, M., Zimbres Silva, and M., Ziolkowski

Subjects
Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Astronomy, Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, Cosmic ray, 01 natural sciences, 7. Clean energy, Neutrino muon pion and other elementary particles, Publisher's note, Nuclear physics, cosmic rays, 0103 physical sciences, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Pierre Auger Observatory, Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Solar neutrino problem, cosmic ray detectors, Cosmic neutrino background, Neutrino detector, 13. Climate action, Neutrino muon pion and other elementary particle detectors, Experimental High Energy Physics, High Energy Physics::Experiment, Neutrino astronomy, Neutrino
Abstract

The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavours above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos can be distinguished from regular hadronic cosmic rays by the broad time structure of their shower signals in the water-Cherenkov detectors. In this paper we present for the first time an analysis based on down-going neutrinos. We describe the search procedure, the possible sources of background, the method to compute the exposure and the associated systematic uncertainties. No candidate neutrinos have been found in data collected from 1 January 2004 to 31 May 2010. Assuming an E^-2 differential energy spectrum the limit on the single flavour neutrino is (E^2 * dN/dE)

Published
2012

39. Constraints on the origin of cosmic rays above 10^18 eV from large-scale anisotropy searches in data of the Pierre Auger Observatory

Author

G. Torralba Elipe, L. Valore, Amin Aminaei, M.E. Ortiz, Jörg R. Hörandel, G. Garilli, I. Lhenry-Yvon, Ralf Ulrich, S. Gambetta, R. Piegaia, L. del Peral, A. Creusot, O. Ravel, W. J. M. de Mello Junior, J. Rodriguez Martino, L. Molina-Bueno, D. Melo, A. van Vliet, G. P. Guedes, D. Maurizio, C. Aramo, Pham Ngoc Diep, H. H. Silva Lopez, Dusan Mandat, N. Scharf, David Walz, M. Ave, M. Gómez Berisso, D. Pakk Selmi-Dei, R. Sato, R. C. Shellard, Heino Falcke, A. Shadkam, L. Buroker, J. Vicha, E. Kemp, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, O. Taşcǎu, Philipp Mertsch, Eun-Joo Ahn, T. Rossler, W. Docters, D. Monnier Ragaigne, F. Werner, C. Pfendner, J. Oehlschläger, G. Wieczorek, M. Prouza, P. L. Ghia, P. Abreu, S. van Velzen, M. Zavrtanik, N. Nierstenhoefer, Michael Urban, M. Wommer, D. Ravignani, H. Martinez, G. Cocciolo, J. L. Navarro, Carola Dobrigkeit, M. Plum, R. F. Gamarra, P. Wahrlich, Luis A. Anchordoqui, T. Huege, Hernán Gonzalo Asorey, A. Parra, Jeffrey Brack, Olaf Scholten, M. L. Díaz Castro, G. Farrar, I. Zaw, L. Nellen, C. Morello, Rémi Bardenet, Alan Watson, Humberto Ibarguen Salazar, Petr Travnicek, K. D. de Vries, J. Alvarez Castillo, A. F. Barbosa, A. Italiano, G. Navarra, Marcus Niechciol, Y. Guardincerri, D. Huber, R. Mussa, J. J. Beatty, F. Diogo, M. Platino, Matthias Balzer, W. Tkaczyk, M. Monasor, Petr Schovanek, Alain Hervé, J. Coppens, H. Dembinski, N. Fazzini, C. De Donato, R. M. de Almeida, Juan Manuel Figueira, Markus Ahlers, E. Varela, A. G. Mariazzi, N. Griffith, G. Müller, R. Bruijn, Maurice Stephan, K. Louedec, Mariangela Settimo, K. H. Kampert, C. Rühle, B. Zamorano Garcia, Francisco J. Blanco, Peter L. Biermann, Alexey Yushkov, I. C. Mariş, Hernan Wahlberg, R. Pelayo, R. E. Burton, H. Blümer, M. C. Maccarone, J. Chauvin, Julien Aublin, A. Segreto, Günter Sigl, F. Gomez Albarracin, C. A. Moura, S. L.C. Barroso, S. Querchfeld, J. L. Kelley, Brian Fick, Samo Stanič, Alberto Daniel Supanitsky, Paolo Privitera, E. D. Fraenkel, Piotr Homola, S. Westerhoff, P. Facal San Luis, Bruno Daniel, R. J. Lauer, T. Yapici, A. Tonachini, J. J. Masías Meza, D. Maurel, Elton J. G. Santos, K. Link, P.F. Gómez Vitale, S. Le Coz, P. Ristori, L. Niemietz, N. Pacheco, J. Roberts, D. Martraire, R. Conceição, Kai Daumiller, Miroslav Hrabovský, A. Haungs, C. L. Williams, H. M. Spinka, S. Jansen, G. Rodriguez, O. Krömer, J. Kleinfeller, Radomir Smida, J. Chirinos Diaz, J. A.J. Matthews, Xavier Bertou, J. L. Harton, L. Tomankova, Markus Roth, A. Tapia, P. Mantsch, S. Grebe, A. Zepeda, Pedro Assis, Z. Szadkowski, B. Caccianiga, I. Allekotte, Daniel Kuempel, F. Salamida, H. Gemmeke, A. Etchegoyen, Carlos Escobar, M. Unger, Javier Tiffenberg, J. Stasielak, S. Coutu, A. C. Rovero, R. Squartini, B. Vargas Cárdenas, T. Suomijärvi, A. Cordier, S. Maldera, C. Bleve, J. Pallotta, E. J. Quel, T. Paul, R. Gaior, V. de Souza, Béatrice Fuchs, B. Wilczynska, Ivone F. M. Albuquerque, Ke Fang, P. Brogueira, N. T. Thao, Niraj Dhital, I. Valiño, E. Menichetti, H. J. Mathes, J. Neuser, Paul Sommers, P. Gouffon, Vincenzo Rizi, D. Kruppke-Hansen, G. De La Vega, P. N. Dong, M. J. Cooper, F. Sánchez, D. Martello, M. De Domenico, F. Suarez, Thomas Hebbeker, Sergio Dasso, M. Ziolkowski, Silvia Mollerach, O. Martínez Bravo, Richard Dallier, A. Gorgi, G. Medina-Tanco, Martina Bohacova, V. Pirronello, G. van Aar, A. Bellétoile, Marcio Aparecido Muller, P. T. Nhung, Sasa Micanovic, Patrick Allison, A. Criss, Luca Latronico, J. Rodriguez Rojo, M. Pontz, Subir Sarkar, K.-H. Becker, M. Pimenta, Iuri Muniz Pepe, J. Sorokin, F.G. Schröder, Enrique Zas, A. C. Fauth, C. Jarne, N. Palmieri, C. J. Todero Peixoto, G. Golup, N. Kunka, Denise Boncioli, C. Di Giulio, H. Lyberis, V. Marin, Carla Bonifazi, M. Zimbres Silva, Jose A. Bellido, German Ros, M. Videla, J. Stapleton, Maria Rita Coluccia, Fernando Contreras, Yogendra N. Srivastava, M. I. Micheletti, A. Menshikov, Jaime Rosado, N. Krohm, B. Sarkar, R. Cester, M. Gold, K. Weidenhaupt, H. Rivera, M. Blanco, J. Espadanal, B. Morales, B. García, Mario Scuderi, H. Wilczyński, S. Jiraskova, Tobias Winchen, P. Lebrun, R. López, Karen S. Caballero-Mora, A. Dorofeev, G. Yuan, S. Navas, M. Ludwig, Matias Tueros, E. Grashorn, A.M. van den Berg, M. Melissas, S. Riggi, Martin Erdmann, R. A. Vázquez, Darko Veberič, M. Tartare, T. Antičić, I. Rodriguez Cabo, Igor Katkov, A. Filipčič, Roger W Clay, F. Sarazin, S. Petrera, Marc Weber, J. C. Marin, L. Villaseñor, L. Martin, M. Ambrosio, R. Bonino, A. Petrolini, C. Macolino, C. Hojvat, Jan Ebr, J. K. Kulbartz, C. J.W.P. Timmermans, H. Schoorlemmer, H.O. Klages, Marco Cilmo, D. Allard, S. Messina, D. Nosek, T. Yamamoto, B. Revenu, U. Fröhlich, A. P. Ferguson, J. R. Vázquez, D. Garcia-Gamez, D. Harari, J. Schovancova, J. Maller, C. Lachaud, G. Marsella, Alina Mihaela Badescu, Iván Sidelnik, A. Smialkowski, A. Weindl, Kreso Kadija, N. Hollon, V. Verzi, H. Cook, P. Goncalves, A. Porcelli, Ernesto Arganda, S. J. De Jong, Pierre Billoir, D. Thomas, A. Curutiu, J. R. T. de Mello Neto, Balázs Kégl, F. Ionita, E. Moreno, A. Nelles, Azadeh Keivani, Jaime Alvarez-Muñiz, D. Schuster, Lu Lu, W. Rodrigues de Carvalho, J. W. Cronin, I. A. Minaya, B. Keilhauer, D. B. Tridapalli, J. Allen, S. J. Sciutto, R. Pesce, G. Toma, D. Nitz, A. Chiavassa, K. B. Barber, L. R. Wiencke, Nataliia Borodai, Yingchun Zhu, F. Salesa Greus, M. Avenier, L. Nožka, L. Caramete, G. Tristram, C. Meurer, E. Trovato, G. Cataldi, Peter Schiffer, V. Scherini, B. Gookin, P. Karhan, Alexandra Saftoiu, A. Schmidt, J. D. Swain, E. M. Santos, A. Insolia, M. Kleifges, D. Zavrtanik, J. Gitto, E. Petermann, J. Pȩkala, Miroslav Pech, Pavel Horvath, S. H. Cheng, M. S. Sutherland, J. F. Valdés Galicia, Bruce R. Dawson, P.O. Mazur, Sofia Andringa, I. De Mitri, A. Gascon Bravo, B. Rouillé-D'Orfeuil, B. Tome, S. T. Garcia Roca, J. Knapp, A. Lopez Agüera, Alberto Filevich, Peter Hansen, Esteban Roulet, C. E. Fracchiolla, F. Guarino, John Matthews, Peter Buchholz, D. D'Urso, M. Szuba, Corinne Berat, M. Giller, E. Parizot, C. E. Santo, I.M. Brancus, H. Glass, Marco Aglietta, M. A. Leigui de Oliveira, R. Tcaciuc, F. Montanet, J. C. dos Anjos, Maria-Teresa Dova, R. Alves Batista, Jing Zhou, Octavian Fratu, B. M. Baughman, M. Palatka, P. W. Younk, D. Garcia-Pinto, M. S. A. B. Leão, G. Matthiae, Antonio Bueno, Sergio Pastor, M. Josebachuili, Gualberto Avila, R. M. Kieckhafer, Juan Moreno, Angela V. Olinto, J. Rautenberg, O. Wainberg, W. C. Brown, Onofrio A. Catalano, B. Wundheiler, Gregory R Snow, P. H. Kasper, J. Bäuml, Rossella Caruso, A. Lucero, G. La Rosa, Jose Chinellato, P. Lautridou, J. Lozano Bahilo, Segev BenZvi, S. Dagoret-Campagne, A. Widom, A. Letessier-Selvon, Lorenzo Cazon, V. H. Ponce, Corbin Covault, Y. Petrov, L. Perrone, Jiri Chudoba, G. Salina, Danielle LaHurd, Olivier Deligny, S. Fliescher, Lino Miramonti, R. Meyhandan, M. D. Rodríguez-Frías, Thomas Harrison, Moritz Münchmeyer, G. C. Hill, Ralph Engel, D. H. Koang, K. Kotera, J. Ridky, P. Pieroni, T. Susa, A. Stutz, B. J. Whelan, F. Arqueros, P. Necesal, Miguel Mostafá, Octavian Sima, J. G. Gonzalez, V. C. Holmes, D. Lebrun, I. Dutan, D. Heck, M. del Río, Colin Baus, H. Schieler, Antonella Castellina, M. Risse, M. Will, L. Collica, G. Parente, H. R. Marquez Falcon, Alejandro Almela, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I. F. M., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Antiči'C, C., Aramo, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman, J., Bäuml, C., Bau, J. J., Beatty, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, L., Buroker, R. E., Burton, K. S., Caballero Mora, B., Caccianiga, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chirinos Diaz, J., Chudoba, M., Cilmo, R. W., Clay, Cocciolo, Giuseppe, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, L., del Peral, M., del Río, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, M. L., Díaz Castro, P. N., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D'Urso, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, B., Fick, J. M., Figueira, A., Filevich, A., Filipčič, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, H., Gemmeke, P. L., Ghia, M., Giller, J., Gitto, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, J. G., Gonzalez, B., Gookin, A., Gorgi, P., Gouffon, E., Grashorn, S., Grebe, N., Griffith, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, P., Hansen, D., Harari, T. A., Harrison, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, G. C., Hill, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, F., Ionita, A., Italiano, S., Jansen, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, D., Lahurd, L., Latronico, R., Lauer, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, J. J., Masías Meza, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, S., Messina, C., Meurer, R., Meyhandan, S., Mi'Canovi'C, M. I., Micheletti, I. A., Minaya, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, M., Mostafá, C. A., Moura, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, M., Niechciol, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nožka, J., Oehlschläger, A., Olinto, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pe¸kala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, A., Petrolini, Y., Petrov, C., Pfendner, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, V. H., Ponce, M., Pontz, A., Porcelli, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, W., Rodrigues de Carvalho, G., Rodriguez, I., Rodriguez Cabo, J., Rodriguez Martino, J., Rodriguez Rojo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d'Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sánchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, Scherini, Viviana, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, O., Sima, A., 'Smiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y. N., Srivastava, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., Šuša, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Taşcău, R., Tcaciuc, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, G., Torralba Elipe, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, L., Valore, G., van Aar, A. M., van den Berg, S., van Velzen, A., van Vliet, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, B. J., Whelan, A., Widom, G., Wieczorek, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, M., Wommer, B., Wundheiler, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano Garcia, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, Universidade Estadual de Campinas, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aramo, Carla, Cilmo, Marco, G., Cocciolo, M. R., Coluccia, I., De Mitri, D'Urso, Domenico, Guarino, Fausto, G., Marsella, D., Martello, L., Perrone, V., Scherini, Valore, Laura, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)

Subjects
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astronomy, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics, 01 natural sciences, MAGNETIC-FIELDS, cosmic rays, Observatory, 0103 physical sciences, Ultra-high-energy cosmic ray, Anisotropy, astroparticle physics – cosmic rays, 010303 astronomy & astrophysics, Ciencias Exactas, High Energy Astrophysical Phenomena (astro-ph.HE), Pierre Auger Observatory, Astroparticle physics, Physics, COSMIC cancer database, 010308 nuclear & particles physics, OBSERVATÓRIOS, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, astroparticle physic, Física, Astronomy and Astrophysics, Radiación cósmica, 13. Climate action, Space and Planetary Science, astroparticle physics, Experimental High Energy Physics, Quadrupole, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física de partículas, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena
Abstract

A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10(18) eV at the Pierre Auger Observatory is reported. For the first time, these large-scale anisotropy searches are performed as a function of both the right ascension and the declination and expressed in terms of dipole and quadrupole moments. Within the systematic uncertainties, no significant deviation from isotropy is revealed. Upper limits on dipole and quadrupole amplitudes are derived under the hypothesis that any cosmic ray anisotropy is dominated by such moments in this energy range. These upper limits provide constraints on the production of cosmic rays above 10(18) eV, since they allow us to challenge an origin from stationary galactic sources densely distributed in the galactic disk and emitting predominantly light particles in all directions, The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malarg ̈ue. We are very grateful to the following agencies and organizations for financial support: Comisi ́on Nacional de Energ ́ıa At ́omica, Fundaci ́on Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargue, NDM Holdings and Valle Las Le ̃nas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Cientıfico e Tecnologico (CNPq), Financiadora de Estudos e Projetos (FINEP),Fundacao de Ampara Pesquisa do Estado de Rio de Janeiro (FAPERJ), Funda ̧cao de Amparo `a Pesquisa do Estado de S ̃ao Paulo (FAPESP), Ministerio de Ciencia e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB100100904, MS MT-CR LA08016, LG11044, MEB111003, MSM0021620859, LA08015 and TACR TA01010517, Czech Republic; Centre de Cal-cul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Regional Ile- de-France, D ́epartement Physique Nucl ́eaire et Corpusculaire (PNC-IN2P3/CNRS), Departement Sciences de l’Univers (SDU-INSU/CNRS), France; Bundesmi misterium fur Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzmi nisterium Baden-W ̈urttemberg, Helmholtz- Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium f ̈ur Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium f ̈ur Wissenschaft, Forschung und Kunst, Baden-W ̈urttemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell Istruzione, dell’Universit`a e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnologıa (CONACYT), Mexico;Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlan dse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM),therlands; Ministry of Science and Higher Education, Grant Nos. N N202 2002 39 and N N202 207238, Poland;Portuguese national funds and FEDER funds within COMPETE - P rograma Operacional Factores de Competitividade through Funda ̧c ̃ao para a Ciˆencia e a Te cnologia, Portugal; Romanian Authority for Scientific Reseach, UEFICDI, Ctr.Nr.1/ASPERA2 ERA-NET, Romania; Ministry for Higher Education, Science, and Technology, Slovenian Rese arch Agency, Slovenia; Comunidad de Madrid, FEDER funds, Ministerio de Ciencia e Innovaci ́on an d Consolider-Ingenio 2010 (CPAN), Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DE-AC02-07CH11359, DE-FR02- 04ER41300, National Science Foundation, Grant No. 0450696, The Grainger Foundation USA ; NAFOSTED, Vietnam; Marie Curie-IRSES/EPLANET, European Particle Physics Latin American Network, European Union 7th Framework Program, Grant No. PIRSES-2009-GA-246806; and UNESCO

Published
2012
Full Text
View/download PDF

40. Search for point-like sources of ultra-high energy neutrinos at the pierre auger observatory and improved limit on the diffuse flux of tau neutrinos

Author

Octavian Sima, J. G. Gonzalez, V. C. Holmes, I. Dutan, M. Gold, H. Rivera, D. Heck, Yingchun Zhu, M. del Río, M. Avenier, L. Nožka, M. Prouza, L. Caramete, H. J. Mathes, J. C. Marin, L. Collica, G. De La Vega, P. Abreu, M. Blanco, Miguel Mostafá, D. Ravignani, C. Macolino, C. Hojvat, Jan Ebr, T. Huege, G. Cocciolo, J. Rodriguez Rojo, F. Salesa Greus, M. Zavrtanik, M. Melissas, J. K. Kulbartz, O. Tascau, Colin Baus, H. Lyberis, F.G. Schröder, Enrique Zas, S. Sánchez Navas, Jose Chinellato, N. Nierstenhoefer, R. A. Vázquez, A. Parra, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, Martina Bohacova, Patrick Allison, J. Sorokin, M. Platino, S. Dagoret-Campagne, A. Widom, H.O. Klages, Maria-Teresa Dova, A. Stutz, J. Bäuml, Rossella Caruso, A. Lucero, G. La Rosa, M. Monasor, C. Di Giulio, Fernando Contreras, F. Sarazin, H. Schieler, D. Nosek, S. Petrera, Marc Weber, A. Letessier-Selvon, Karl-Heinz Kampert, Antonella Castellina, C. J. Todero Peixoto, R. Alves Batista, A. P. Ferguson, Iván Sidelnik, D. H. Koang, V. H. Ponce, Francisco J. Blanco, N. Scharf, Lorenzo Cazon, J. Maller, G. Marsella, M. Ambrosio, A. Petrolini, J. Kleinfeller, L. Perrone, Jiri Chudoba, A. Weindl, S. J. De Jong, C. E. Fracchiolla, C. De Donato, Pierre Billoir, D. Thomas, A. Curutiu, D. D'Urso, Daniel Kuempel, Carlos Escobar, C. J.W.P. Timmermans, N. Krohm, Corinne Berat, M. Giller, J. Lozano Bahilo, Segev BenZvi, B. Sarkar, E. Parizot, H. Schoorlemmer, Thomas Harrison, K. Kotera, P. Pieroni, C. E. Santo, Petr Schovanek, Guenter Sigl, L. Valore, Amin Aminaei, A. Cordier, S. Maldera, E. Kemp, J. R. T. de Mello Neto, Kreso Kadija, N. Hollon, V. Verzi, J. Espadanal, Jing Zhou, Octavian Fratu, B. M. Baughman, W. Tkaczyk, Ivone F. M. Albuquerque, H. H. Silva Lopez, Dusan Mandat, Corbin Covault, N. T. Thao, D. Monnier Ragaigne, H. Wilczyński, J. A.J. Matthews, G. Navarra, Y. Petrov, F. Gomez Albarracin, S. Fliescher, Lino Miramonti, H. Cook, C. Pfendner, Azadeh Keivani, I. Zaw, R. Bruijn, G. Cataldi, Benoît Revenu, Peter Schiffer, L. del Peral, F. Arqueros, P. Necesal, V. Scherini, G. Salina, P. Goncalves, J. Stasielak, S. Coutu, Xavier Bertou, H. Martinez, A. Zepeda, M. D. Rodríguez-Frías, W. Rodrigues de Carvalho, Mariangela Settimo, Alexey Yushkov, H. Blümer, A. Porcelli, Ernesto Arganda, B. J. Whelan, D. Lebrun, Alexandra Saftoiu, C. A. Moura, S. L.C. Barroso, T. Yamamoto, Brian Fick, Samo Stanič, J. W. Cronin, G. Toma, Pedro Assis, W. J. M. de Mello Junior, J. Rodriguez Martino, Danielle LaHurd, Olivier Deligny, A. Gorgi, Nataliia Borodai, A.M. van den Berg, Piotr Homola, P. Facal San Luis, M. Josebachuili, A. Etchegoyen, Darko Veberič, M. L. Díaz Castro, G. Farrar, J. D. Swain, Javier Tiffenberg, I. Rodriguez Cabo, K. Louedec, M. S. A. B. Leão, R. Meyhandan, M. Palatka, J. Pe¸kala, D. Nitz, P. W. Younk, N. Palmieri, Maurice Stephan, S. Le Coz, H. M. Spinka, O. Krömer, R. Bonino, A. Tonachini, C. Meurer, E. Trovato, Vincent Marin, Jörg R. Hörandel, A. Insolia, M. Kleifges, D. Zavrtanik, A. Menshikov, A. Chiavassa, A. van Vliet, P. Karhan, K. B. Barber, Balázs Kégl, B. Gookin, L. R. Wiencke, Hernán Asorey, F. Ionita, D. Allard, E. M. Santos, P.F. Gómez Vitale, K. Weidenhaupt, F. Suarez, Thomas Hebbeker, Sergio Dasso, G. Matthiae, I. Lhenry-Yvon, Moritz Münchmeyer, Christopher B. Williams, Ralph Engel, J. Ridky, A. F. Barbosa, U. Fröhlich, R. M. Kieckhafer, Juan Moreno, A. Creusot, S. H. Cheng, J. R. Vázquez, K.-H. Becker, M. Pimenta, Bruce R. Dawson, D. Garcia-Gamez, J. Rautenberg, M. Ave, M. Gómez Berisso, P.O. Mazur, R. C. Shellard, Markus Ahlers, T. Susa, E. Varela, Subir Sarkar, O. Wainberg, Antonio Bueno, D. Harari, W. Docters, Sergio Pastor, V. Pirronello, Iuri Muniz Pepe, J. Schovancova, R. F. Gamarra, N. Griffith, J. Chauvin, A. Schmidt, Eun-Joo Ahn, W. C. Brown, F. Salamida, Denise Boncioli, M. Zimbres Silva, C. Jarne, D. Kruppke-Hansen, R. E. Burton, Alina Mihaela Badescu, M. Wommer, Gualberto Avila, M.E. Ortiz, German Ros, J. Stapleton, I. C. Mariş, Angela V. Olinto, L. Molina-Bueno, D. Melo, A. Smialkowski, Hernan Wahlberg, M. Videla, Marcio Aparecido Muller, E. Moreno, David Walz, Richard Dallier, A. Nelles, R. Mussa, J. J. Beatty, Ralf Ulrich, Silvia Mollerach, Alain Hervé, J. Coppens, D. Pakk Selmi-Dei, R. Sato, G. Golup, Jaime Alvarez-Muñiz, D. Schuster, C. Rühle, H. Dembinski, P. Brogueira, Alberto Daniel Supanitsky, E. D. Fraenkel, N. Fazzini, N. Kunka, S. Gambetta, G. Tristram, Lu Lu, François Montanet, R. J. Lauer, Elton J. G. Santos, K. Link, Markus Roth, S. Grebe, Paul Sommers, B. Wundheiler, R. Piegaia, P. Ristori, D. Maurizio, J. Gitto, I. A. Minaya, B. Keilhauer, Gregory R Snow, P. H. Kasper, D. B. Tridapalli, J. Allen, R. Squartini, T. Paul, P. Gouffon, Julien Aublin, G. Yuan, F. Werner, Matias Tueros, E. Petermann, Miroslav Pech, P. N. Dong, M. J. Cooper, C. Aramo, J. F. Valdés Galicia, I. De Mitri, A. Gascon Bravo, D. Martraire, J. L. Navarro, S. J. Sciutto, R. Pesce, E. Grashorn, S. Riggi, Martin Urban, Olivier Ravel, E. Menichetti, T. Antičić, F. Sánchez, M. De Domenico, Pavel Horvath, M. S. Sutherland, S. T. Garcia Roca, S. Jansen, G. Rodriguez, Miroslav Hrabovský, B. Caccianiga, I. Allekotte, A. Haungs, Pham Ngoc Diep, O. Blanch-Bigas, Kai Daumiller, M. Grigat, A. Filipcic, G. Medina-Tanco, M. A. Leigui de Oliveira, R. Tcaciuc, L. Tomankova, B. Vargas Cárdenas, T. Suomijärvi, G. van Aar, J. Pallotta, B. García, E. J. Quel, J. C. dos Anjos, Mario Scuderi, Tobias Winchen, P. Lebrun, J. L. Harton, A. C. Rovero, C. Bleve, R. López, Karen S. Caballero-Mora, Sofia Andringa, Béatrice Fuchs, Niraj Dhital, B. Rouillé-D'Orfeuil, Heino Falcke, I. Valiño, M. Ludwig, L. Buroker, J. Vicha, A. Filevich, Maria Rita Coluccia, D. Garcia-Pinto, Vincenzo Rizi, D. Martello, Martin Erdmann, P. Mantsch, Z. Szadkowski, J. Neuser, B. Tome, M. Ziolkowski, O. Martínez Bravo, M. Tartare, J. Knapp, A. Lopez Agüera, Roger W Clay, P. T. Nhung, Peter Hansen, G. Wieczorek, F. Guarino, John Matthews, Marcus Niechciol, Peter Buchholz, M. Szuba, I.M. Brancus, R. Pelayo, F. Diogo, H. Glass, Luca Latronico, Marco Aglietta, S. Querchfeld, J. L. Kelley, R. M. de Almeida, Yogendra N. Srivastava, M. I. Micheletti, A. C. Fauth, Carla Bonifazi, Jose A. Bellido, Jaime Rosado, A. Bellétoile, R. Cester, L. Niemietz, B. Morales, S. Jiraskova, Rúben Conceição, Pascal Lautridou, N. Pacheco, B. Zamorano Garcia, S. Schulte, Y. Guardincerri, Bruno Daniel, T. Yapici, J. J. Masías Meza, G. Müller, D. Maurel, M. C. Maccarone, J. Roberts, A. Tapia, H. Gemmeke, M. Unger, B. Wilczynska, S. Westerhoff, R. Gaior, Sasa Micanovic, J. Oehlschläger, A. Criss, M. Pontz, Carola Dobrigkeit, M. Plum, P. Wahrlich, Alan Watson, Luis A. Anchordoqui, L. Nellen, J. Alvarez Castillo, Rémi Bardenet, Petr Travnicek, C. Morello, K. D. de Vries, Matthias Balzer, A. Italiano, D. Huber, Juan Manuel Figueira, A. G. Mariazzi, Peter L. Biermann, A. Segreto, Radomir Smida, J. Chirinos Diaz, V. de Souza, G. P. Guedes, A. Shadkam, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, Esteban Roulet, Philipp Mertsch, P. L. Ghia, Osvaldo Catalano, M. Risse, M. Will, Paolo Privitera, G. Parente, H. R. Marquez Falcon, Alejandro Almela, T. Rossler, C. Lachaud, A. Dorofeev, Igor Katkov, L. Villaseñor, L. Martin, Marco Cilmo, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, ANR-11-IDEX-0004,SUPER,Sorbonne Universités à Paris pour l'Enseignement et la Recherche(2011), European Project: 328826,EC:FP7:PEOPLE,FP7-PEOPLE-2012-IEF,AUGER2FUTURE(2013), European Project: 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET(2011), P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I. F. M., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Antičić, C., Aramo, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman f, J., Bäuml, C., Bau, J. J., Beatty, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, R., Bruijn i, P., Buchholz, A., Bueno, L., Buroker, R. E., Burton, K. S., Caballero Mora, B., Caccianiga, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chirinos Diaz, J., Chudoba, M., Cilmo, R. W., Clay, G., Cocciolo, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, L., del Peral, M., del Río, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, M. L., Díaz Castro, P. N., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D'Urso, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, B., Fick, J. M., Figueira, A., Filevich, A., Filipčič, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel!, O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, H., Gemmeke, P. L., Ghia, M., Giller, J., Gitto, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, J. G., Gonzalez, B., Gookin, A., Gorgi, P., Gouffon, E., Grashorn, S., Grebe, N., Griffith, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, P., Hansen, D., Harari, T. A., Harrison, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, F., Ionita, A., Italiano, S., Jansen, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, D., Lahurd, L., Latronico, R., Lauer, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, J. J., Masías Meza, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, C., Meurer, R., Meyhandan, S., Mićanović, M. I., Micheletti, I. A., Minaya, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, M., Mostafá, C. A., Moura, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, M., Niechciol, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nožka, J., Oehlschläger, A., Olinto, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pękala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, A., Petrolini, Y., Petrov, C., Pfendner, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, V. H., Ponce, M., Pontz, A., Porcelli, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, W., Rodrigues de Carvalho, G., Rodriguez, I., Rodriguez Cabo, J., Rodriguez Martino, J., Rodriguez Rojo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d'Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sanchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, O., Sima, A., Śmiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y. N., Srivastava, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., Šuša, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Taşcău, R., Tcaciuc, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, L., Valore, G., van Aar, A. M., van den Berg, A., van Vliet, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, B. J., Whelan, A., Widom, G., Wieczorek, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, M., Wommer, B., Wundheiler, T., Yamamoto a, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano Garcia, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw h, A., Zepeda b, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), T., Anti??i'C, B., Baughman, O., Blanch Biga, M., Bohá??ová, R., Bruijn, M. R., Coluccia, I., De Mitri, D'Urso, Domenico, A., Filip??i??, E. D., Fraenkel, M., Grigat, Guarino, Fausto, G., Marsella, D., Martello, S., Mi'Canovi'C, L., No??ka, J., Pe¸kala, L., Perrone, F., Sánchez, A., 'Smia??kowski, R., ??mída, T., ??u??a, O., Ta??c??u, Valore, Laura, D., Veberi??, B., Wilczy??ska, H., Wilczy??ski, T., Yamamoto, I., Zaw, A., Zepeda, APC - Astrophysique des Hautes Energies (APC - AHE), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), and ANR-11-IDEX-0004-02/10-LABX-0063,ILP,Institute Lagrange of Paris(2011)

Subjects
Physics::Instrumentation and Detectors, Solar neutrino, Astronomy, Astrophysics, 01 natural sciences, 7. Clean energy, neutrino, Telescopios, Tau neutrino, astroparticle physics, cosmic rays, neutrinos, telescopes, 010303 astronomy & astrophysics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), cosmic ray, Physics, [PHYS]Physics [physics], High Energy Astrophysical Phenomena (astro-ph.HE), [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], COSMIC-RAYS, Cosmic neutrino background, Measurements of neutrino speed, Física nuclear, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Radiación Cósmica, Astrophysics::High Energy Astrophysical Phenomena, TELESCÓPIOS, FOS: Physical sciences, Astroparticle physic, 0103 physical sciences, DETECTOR, Ciencias Exactas, Pierre Auger Observatory, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Física, Astronomy and Astrophysics, Solar neutrino problem, 13. Climate action, Space and Planetary Science, Experimental High Energy Physics, High Energy Physics::Experiment, Astroparticle physics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Lepton
Abstract

The surface detector array of the Pierre Auger Observatory can detect neutrinos with energy Eν between 1017 eV and 1020 eV from point-like sources across the sky south of +55º and north of −65º declinations. A search has been performed for highly inclined extensive air showers produced by the interaction of neutrinos of all flavors in the atmosphere (downward-going neutrinos), and by the decay of tau leptons originating from tau neutrino interactions in Earth’s crust (Earth-skimming neutrinos). No candidate neutrinos have been found in data up to 2010 May 31. This corresponds to an equivalent exposure of ∼3.5 years of a full surface detector array for the Earth-skimming channel and ∼2 years for the downward-going channel. An improved upper limit on the diffuse flux of tau neutrinos has been derived. Upper limits on the neutrino flux from point-like sources have been derived as a function of the source declination. Assuming a differential neutrino flux kPS · E−2ν from a point-like source, 90% confidence level upper limits for kPS at the level of ≈5×10−7 and 2.5×10−6 GeV cm−2 s−1 have been obtained over a broad range of declinations from the searches for Earth-skimming and downward-going neutrinos, respectively., Facultad de Ciencias Exactas

Published
2012
Full Text
View/download PDF

41. Control and diagnosis of water chemistry in the water-steam and water make-up in a fossil fuelled power plant

Author

J.J. Alba, J.J. Fernández-Martínez, Miguel A. Sanz-Bobi, J. González-Huerta, M.J. Villamediana, A. Doménech, Ignacio J. Pérez-Arriaga, M.E. Ortiz-Alfaro, and J.L. Serrano-Carbayo

Subjects
Engineering, Power station, business.industry, Control (management), Fossil fuel, Environmental engineering, Energy Engineering and Power Technology, Thermal power station, computer.software_genre, Expert system, Water chemistry, Water treatment, Electrical and Electronic Engineering, Process engineering, business, Fossil fuel power plant, computer
Abstract

This paper presents the expert system SEQA (the Spanish initials for Water Chemistry Expert System) for the control and diagnostic of the chemical properties of the water-steam and water make-up treatment systems in a fossil power plant. The purpose of the system is to monitor the parameters that control the water chemical properties in a power plant, in order to forecast anomalies and, if they occur, to diagnose the problem that causes them. In this case, the expert system will recommend suitable actions to prevent these anomalies or at least to mitigate their effect, if possible. The auxiliary modules that provide the necessary information to reach this objective are also described.

Published
1994
Full Text
View/download PDF

42. Quenching of 1B2u(61) vibrational level of the benzene molecule at 300 K by several colliders

Author

A. de la Cruz, M.E. Ortiz, and José Gregorio Soto Campos

Subjects
Pulsed laser, Cross section (geometry), chemistry.chemical_compound, Quenching (fluorescence), chemistry, General Physics and Astronomy, Molecule, Physical and Theoretical Chemistry, Atomic physics, Ionization energy, Benzene, Excitation
Abstract

The deexcitation of the 61 level of the 1B2u state of the benzene molecule after pulsed laser excitation has been studied. The values obtained for the level lifetime and self-quenching cross section are 89.2 ± 1.8 ns and 12.6 ± 1.4 A2. The quenching cross sections for collisions with Ne, Ar, CH4, NH3, CO, CO2 and O2 have been measured. For the first four colliders no previous data have been reported in the literature. The corresponding results for total quenching cross sections are 0.9±0.1, 3.4±0.3, 7.9±0.6, 22.0±1.0, 6.7±0.5, 13.0±0.8 and 41.0±1.5 A2, respectively. The contribution of electronic quenching to these values has been studied.

Published
1994
Full Text
View/download PDF

43. Isotopically-selective two-photon ionization of 12C- and 13C-benzene and hexadeuterobenzene in a time-of-flight mass spectrometer

Author

M.E. Ortiz, J.A. Cabrera, A. de la Cruz, and José Gregorio Soto Campos

Subjects
Chemical ionization, Chemistry, Physics::Atomic and Molecular Clusters, Mass spectrum, Thermal ionization mass spectrometry, Atomic physics, Direct electron ionization liquid chromatography–mass spectrometry interface, Mass spectrometry, Quadrupole mass analyzer, Spectroscopy, Hybrid mass spectrometer, Atmospheric-pressure laser ionization
Abstract

In this work the 610 band spectra for 12C6H6, 12C6D6, 13C12C5H6 and 13C12C5D6 isotopically-substituted benzenes are reported. Spectra of deuterated species are given for the first time. These molecular spectra can be employed to test the technical performances of REMPI-TOFMS systems. The experimental method was laser-induced two-photon ionization of molecules cooled in a He supersonic beam followed by time-of-flight mass spectrometry. A splitting of the 610 band appears when a 13C atom is present in the benzene-ring, favoring the isotope selectivity. In the present experiment a complete mass discrimination has been accomplished by using appropriate electronic circuits. A proportional counter has been used to obtain the corresponding spectra of the molecules at 300 K. The device is very useful to tune the laser wavelength to resonance in this kind of mass spectrometry experiment.

Published
1994
Full Text
View/download PDF

44. Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory

Author

B. Rouillé-D'Orfeuil, Paulo J. S. Gonçalves, M. I. Micheletti, J. Kleinfeller, Martina Bohacova, Patrick Allison, M. Ave, M. Gómez Berisso, R. C. Shellard, M.E. Ortiz, J. Sorokin, G. Decerprit, J. Knapp, D. Nitz, Daniel Kuempel, Carlos Escobar, Jan Pękala, A. Cordier, S. Maldera, L. del Peral, A. Creusot, Rúben Conceição, Pascal Lautridou, M. Wommer, Alberto Filevich, Peter Hansen, F. Guarino, John Matthews, P. Brogueira, Mariangela Settimo, A. Chiavassa, Miguel Mostafá, Ivone F. M. Albuquerque, K. B. Barber, A. F. Barbosa, Carla Bleve, L. R. Wiencke, E. Santos, W. J. M. de Mello Junior, S. Gambetta, Peter Buchholz, D. Warner, S. Dagoret-Campagne, J. Rodriguez Martino, van den Ad M Berg, P. Schiffer, S. Schulte, I. Rodriguez-Cabo, Piotr Homola, N. Griffith, R. E. Burton, K. Louedec, R. Piegaia, R. D. Parsons, T. Rossler, M. Szuba, H. Glass, O. Tascau, A. C. Fauth, J. Lozano Bahilo, Segev BenZvi, M. Ambrosio, A. Petrolini, Luis A. Anchordoqui, R. Bruijn, Corbin Covault, Y. Petrov, Geraldina Golup, Alexander Grillo, S. Fliescher, Lino Miramonti, P. Facal San Luis, M. D. Rodríguez-Frías, J. Chauvin, Rossella Caruso, Pietro Oliva, A. Lucero, G. La Rosa, A. Segreto, Günter Sigl, N. Scharf, Marco Aglietta, Carola Dobrigkeit, R. F. Gamarra, H. Schieler, I. Valiño, R. Ulrich, Karl-Heinz Kampert, Antonella Castellina, Carla Bonifazi, Jose A. Bellido, C. L. Williams, H. Bluemer, H. M. Spinka, E. Moreno, Paul Sommers, G. Cataldi, A. Horneffer, P. Petrinca, V. Scherini, N. Phan, C. J.W.P. Timmermans, M. Risse, Radomir Smida, G. Mueller, J. D. Hague, M. De Domenico, Rémi Bardenet, Petr Travnicek, T. Huege, P. Wahrlich, Jaime Rosado, Eun-Joo Ahn, Alan Watson, Darko Veberič, M. L. Díaz Castro, G. Farrar, Jeffrey Brack, Olaf Scholten, E. Kemp, Richard Dallier, A. Nelles, Christopher Morris, Jaime Alvarez-Muñiz, D. Schuster, Maria Rita Coluccia, M. Muenchmeyer, H. Schoorlemmer, Domenico Tegolo, Humberto Ibarguen Salazar, B. García, M. Will, N. T. Thao, B. J. Whelan, Mario Scuderi, Tobias Winchen, G. Parente, A. Italiano, G. Matthiae, R. Cester, J. Alvarez Castillo, Fabian Schmidt, B. Wundheiler, H. R. Marquez Falcon, A. Tamashiro, P. Lebrun, R. López, Karen S. Caballero-Mora, D. Monnier Ragaigne, B. Morales, C. Pfendner, V. de Souza, Gregory R Snow, L. Perrone, D. Maurizio, D. Allard, Jiri Chudoba, A. Smialkowski, K. Link, E. Petermann, D. García Gámez, Miroslav Pech, J. D. Swain, M. G. Winnick, Antonio Bueno, Sergio Pastor, B. Vargas Cárdenas, A. Tapia, A. G. Mariazzi, J. Pallotta, B. Wilczynska, H. Gemmeke, M. Unger, Balázs Kégl, L. Valore, Amin Aminaei, C. Aramo, M. Ludwig, B. Revenu, Martin Erdmann, C. Robledo, A. Haungs, J. L. Harton, Marcos Santander, C. J. Todero Peixoto, C. De Donato, E. J. Quel, Markus Roth, R. Bonino, P. H. Kasper, B. Keilhauer, D. B. Tridapalli, J. Allen, A. D. Supanitsky, Hernán Asorey, N. Palmieri, Heino Falcke, K. Kotera, M. S. Sutherland, A. Insolia, M. Kleifges, D. Zavrtanik, B. Tome, P. Mantsch, J. F. Valdés Galicia, Sasa Micanovic, A. Criss, Maria Giller, J. R. Vázquez, Béatrice Fuchs, G. Navarra, Roger W Clay, S. Jiraskova, M. Hrabovsky, M. Gold, H. Rivera, P. Pieroni, S. J. Sciutto, R. Pesce, N. Krohm, G. Wieczorek, T. Schmidt, C. Macolino, C. Hojvat, D. Kruppke-Hansen, A. Filipcic, Jan Ebr, I. Zaw, Sergio Petrera, K.-H. Becker, C. A. Moura, Vincent Marin, T. Yamamoto, R. Mussa, Brian Fick, J. Oehlschlaeger, J. J. Beatty, F. Arqueros, P. Necesal, F. Ionita, H. Wilczyński, J. K. Kulbartz, M. Avenier, Gualberto Avila, R. M. de Almeida, Ingomar Allekotte, L. Caramete, Silvia Mollerach, Alain Hervé, J. Coppens, M. Pimenta, T. Baecker, L. Nozka, Umberto Cotti, H.O. Klages, I. De Mitri, Marcio Aparecido Muller, G. P. Guedes, H. Dembinski, N. Fazzini, A. Parr, P. T. Nhung, A. Ferrero, J. Schovancova, V. C. Holmes, D. Lebrun, I. Dutan, L. Winders, S. Grebe, Sofia Andringa, G. Tristram, I. C. Mariş, Dusan Mandat, J. Stapleton, D.V. Semikoz, A. Shadkam, Hernan Wahlberg, A. Menshikov, Kai Daumiller, M. Grigat, A. P. Ferguson, P. N. Dong, Julien Aublin, R. Squartini, T. Paul, N. Kunka, Maurice Stephan, Zbigniew Szadkowski, Angela V. Olinto, Juan Carlos D'Olivo, T. Pierog, Esteban Roulet, Philipp Mertsch, K. Gesterling, P. L. Ghia, S. Harmsma, Azadeh Keivani, U. Froehlich, C. Lachaud, Iván Sidelnik, G. Yuan, E. D. Fraenkel, Michael Urban, D. Heck, M. J. Coopers, F. Kuehn, E. Grashorn, Olivier Ravel, E. Menichetti, W. Rodrigues de Carvalho, S. Westerhoff, G. Rodriguez, P. Ristori, V. M. Olmos-Gilbaja, Jörg R. Hörandel, H. Cook, T. Antičić, J. A.J. Matthews, Xavier Bertou, A. Zepeda, F. Salamida, J. W. Cronin, G. Medina-Tanco, L. Nellen, K. Weidenhaupt, Pedro Assis, J. Petrovic, A. Etchegoyen, Javier Tiffenberg, A. C. Rovero, I. Lhenry-Yvon, J. Stasielak, S. Coutu, P. Karhan, F. Suarez, Thomas Hebbeker, M. Blanco, C. Morello, K. D. de Vries, Sergio Dasso, B. Zamorano, M. Nyklicek, Warner A. Miller, M. A. Leigui de Oliveira, R. Tcaciuc, Nataliia Borodai, A. Tonachini, Matthias Balzer, A. Denkiewicz, F. Schroeder, F. Montanet, J. C. dos Anjos, C. Riviere, Vincenzo Rizi, S. L. C. Barroso, M. Tueros, D. Martello, M. Ziolkowski, Maria-Teresa Dova, V. Pirronello, Iuri Muniz Pepe, O. Martínez Bravo, Y. Guardincerri, M. Prouza, S. J. De Jong, M. Pontz, Pierre Billoir, D. Thomas, A. Curutiu, P. Abreu, D. Ravignani, J. R. T. de Mello Neto, Peter L. Biermann, T. Karova, Subir Sarkar, A. Gascon, H. Lyberis, D. Melo, A. Schmidt, M. Platino, M. Monasor, Denise Boncioli, V. H. Ponce, D. Pakk Selmi-Dei, C. E. Santo, Francisco J. Blanco, N. Nierstenhoefer, R. Sato, F. Gomez Albarracin, German Ros, S. Navas, J. L. Navarro, Paolo Privitera, P. N. Diep, J. C. Diaz, D. Garcia-Pinto, R. Pelayo, M. Melissas, R. A. Vázquez, D. Nosek, J. L. Kelley, D. K. Tiwari, B. M. Baughman, N. Pacheco, F. Sanchez, M. S. A. B. Leão, A. Chou, F. Sarazin, Marc Weber, J. Parrisius, M. Palatka, P. W. Younk, G. Marsella, R. M. Kieckhafer, Juan Moreno, A. Weindl, J. Rautenberg, Kreso Kadija, O. Wainberg, W. C. Brown, V. Verzi, Ernesto Arganda, C. E. Fracchiolla, D. D'Urso, Corinne Berat, E. Parizot, W. Tkaczyk, A. Lemiere, C. Meurer, B. R. Becker, E. Trovato, Diego Harari, C. Ruehle, E. M. Santos, Ralph Engel, Bruce R. Dawson, D. H. Koang, P.O. Mazur, J. Ridky, T. Susa, A. Stutz, O. Kroemer, Jose Chinellato, T. Suomijaervi, S. Mueller, A. Dorofeev, A. Letessier-Selvon, L. Villaseñor, L. Martin, H. J. Mathes, Lorenzo Cazon, G. De La Vega, J. Rodriguez Rojo, Enrique Zas, M. Videla, C. Di Giulio, G. Salina, Fernando Contreras, Olivier Deligny, M. Zavrtanik, A. Lopez Agueera, U. Giaccari, Petr Schovanek, Guarino, Fausto, D'Urso, Domenico, Valore, Laura, M., Ambrosio, Aramo, Carla, The Pierre Auger, Collaboration, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Institut de Physique Nucléaire d'Orsay (IPNO), APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Abreu, P., Aglietta, M., Ahn, E., Albuquerque, I., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez Castillo, J., Alvarez-Muiz, J., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Antičić, T., Aramo, C., Arganda, E., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Bäcker, T., Balzer, M., Barber, K., Barbosa, A., Bardenet, R., Barroso, S., Baughman, B., Beatty, J., Becker, B., Becker, K., Bellido, J., Benzvi, S., Berat, C., Bertou, X., Biermann, P., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Bl̈mer, H., Boáčhová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Clay, R., Coluccia, M., Conceio, R., Contreras, F., Cook, H., Cooper, M., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Dasso, S., Daumiller, K., Dawson, B., De Almeida, R., De Domenico, M., De Donato, C., De Jong, S., De La Vega, G., De Mello Junior, W., De Mello Neto, J., De Mitri, I., De Souza, V., De Vries, K., Decerprit, G., Del Peral, L., Deligny, O., Dembinski, H., Denkiewicz, A., Di Giulio, C., Diaz, J., Daz Castro, M., Diep, P., Dobrigkeit, C., D'Olivo, J., Dong, P., Dorofeev, A., Dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Etchegoyen, A., Facal San Luis, P., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferguson, A., Ferrero, A., Fick, B., Filevich, A., Filipi, A., Fliescher, S., Fracchiolla, C., Fraenkel, E., Frhlich, U., Fuchs, B., Gamarra, R., Gambetta, S., Garca, B., Garca Gmez, D., Garcia-Pinto, D., Gascon, A., Gemmeke, H., Gesterling, K., Ghia, P., Giaccari, U., Giller, M., Glass, H., Gold, M., Golup, G., Gomez Albarracin, F., Gmez Berisso, M., Gonalves, P., Gonzalez, D., Gonzalez, J., Gookin, B., Gra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Griffith, N., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Hague, J., Hansen, P., Harari, D., Harmsma, S., Harton, J., Haungs, A., Hebbeker, T., Heck, D., Herve, A., Hojvat, C., Holmes, V., Homola, P., Hrandel, J., Horneffer, A., Hrabovsk, M., Huege, T., Insolia, A., Ionita, F., Italiano, A., Jiraskova, S., Kadija, K., Kampert, K., Karhan, P., Karova, T., Kasper, P., Kgl, B., Keilhauer, B., Keivani, A., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleifges, M., Kleinfeller, J., Knapp, J., Koang, D., Kotera, K., Krohm, N., Krmer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, J., Kunka, N., La Rosa, G., Lachaud, C., Lautridou, P., Leo, M., Lebrun, D., Lebrun, P., Leigui De Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., Lpez, R., Lopez Agera, A., Louedec, K., Lozano Bahilo, J., Lucero, A., Ludwig, M., Lyberis, H., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Marin, V., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martin, L., Martnez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Mertsch, P., Meurer, C., Mićanović, S., Micheletti, M., Miller, W., Miramonti, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, E., Moreno, J., Morris, C., Mostaf, M., Moura, C., Mueller, S., Muller, M., Mller, G., Mnchmeyer, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Nelles, A., Nhung, P., Nierstenhoefer, N., Nitz, D., Nosek, D., Noka, L., Nyklicek, M., Oehlschlger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parra, A., Parrisius, J., Parsons, R., Pastor, S., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Phan, N., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Risse, M., Ristori, P., Rivera, H., Rivire, C., Rizi, V., Robledo, C., Rodrigues De Carvalho, W., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodrguez-Fras, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouill-D'Orfeuil, B., Roulet, E., Rovero, A., Rhle, C., Salamida, F., Salazar, H., Salina, G., Snchez, F., Santander, M., Santo, C., Santos, E., Sarazin, F., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Schmidt, F., Schmidt, T., Scholten, O., Schoorlemmer, H., Schovancova, J., Schovnek, P., Schroeder, F., Schulte, S., Schuster, D., Sciutto, S., Scuderi, M., Segreto, A., Semikoz, D., Settimo, M., Shadkam, A., Shellard, R., Sidelnik, I., Sigl, G., Śmiakowski, A., Mda, R., Snow, G., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijrvi, T., Supanitsky, A., Ua, T., Sutherland, M., Swain, J., Szadkowski, Z., Szuba, M., Tamashiro, A., Tapia, A., Tacu, O., Tcaciuc, R., Tegolo, D., Thao, N., Thomas, D., Tiffenberg, J., Timmermans, C., Tiwari, D., Tkaczyk, W., Todero Peixoto, C., Tom, B., Tonachini, A., Travnicek, P., Tridapalli, D., Tristram, G., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valds Galicia, J., Valio, I., Valore, L., Van Den Berg, A., Vargas Crdenas, B., Vzquez, J., Vzquez, R., Veberi, D., Verzi, V., Videla, M., Villaseor, L., Wahlberg, H., Wahrlich, P., Wainberg, O., Warner, D., Watson, A., Weber, M., Weidenhaupt, K., Weindl, A., Westerhoff, S., Whelan, B., Wieczorek, G., Wiencke, L., Wilczyska, B., Wilczyski, H., Will, M., Williams, C., Winchen, T., Winders, L., Winnick, M., Wommer, M., Wundheiler, B., Yamamoto, T., Younk, P., Yuan, G., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Ziolkowski, M., J., Abraham, P., Abreu, M., Aglietta, C., Aguirre, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, E., Arganda, S., Argir, K., Arisaka, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, A., Bacher, T., Backer, D., Badagnani, K. B., Barber, A. F., Barbosa, H. J. M., Barbosa, N., Barenthien, S. L. C., Barroso, B., Baughman, P., Bauleo, J. J., Beatty, T., Beau, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, C., Bleve, H., Blumer, M., Bohacova, E., Bollmann, H., Bolz, C., Bonifazi, R., Bonino, N., Borodai, F., Bracci, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, D., Camin, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, J., Castro, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, J., Chye, P. D. J., Clark, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, B., Connolly, F., Contrera, J., Coppen, A., Cordero, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J. W., Cronin, J., Cuautle, A., Curutiu, S., Dagoret Campagne, R., Dallier, F., Daudo, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, P. N., Diep, C., Dobrigkeit, J. C., D’Olivo, P. N., Dong, D., Dornic, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D’Urso, I., Dutan, M. A., Du Vernoi, R., Engel, M., Erdmann, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, F., Ferrer, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, R., Fonte, C. E., Fracchiolla, E. D., Fraenkel, W., Fulgione, R. F., Gama rra, S., Gambetta, B., Garcıa, D., Garcıa Gamez, D., Garcia Pinto, X., Garrido, H., Geenen, G., Gelmini, H., Gemmekeai, P. L., Ghia, U., Giaccari, K., Gibb, M., Giller, J., Gitto, H., Gla, L. M., Goggin, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gomez Berisso, P. F., Gomez Vitale, P., Goncalve, M., Goncalves do Amaral, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, E., Grashorn, V., Grassi, S., Grebe, M., Grigat, A. F., Grillo, J., Grygar, Y., Guardincerri, N., Guardone, C., Guerard, F., Guarino, R., Gumbsheimer, G. P., Guede, J., Gutierrez, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, A., Haung, M. D., Healy, T., Hebbeker, G., Hebrero, D., Heck, C., Hojvat, V. C., Holme, P., Homola, G., Hofman, J. R., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, H., Hucker, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Ke, B., Keilhauer, E., Kempq, H., Kern, R. M., Kieckhafer, H. O., Klage, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Kopmann, A., Krieger, O., Kromer, D., Kruppke Hansen, D., Kuempel, N., Kunka, A., Kusenko, G., La Rosa, C., Lachaud, B. L., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguide Oliveira, A., Lemiere, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, R., Lopez, A., Lopez Aguera, K., Louedec, J., Lozano Bahilo, A., Lucero, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, M., Malek, D., Mandat, P., Mantsch, F., Marchetto, A. G., Mariazzi, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, O., Martineau, O., Martınez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewen, R. R., Mcneil, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, J. C., Moreno, C., Morri, M., Mostafa, C. A., Moura, M., Mucchi, S., Mueller, M. . A., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, F., Nerling, C., Newman Holme, D., Newton, P. T., Nhung, D., Nicotra, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V. M., Olmos Gilbaja, M., Ortiz, F., Ortolani, B., Oßwald, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, S., Pastor, M., Patel, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, A., Pichel, R., Piegaia, T., Pierog, M., Pimenta, T., Pinto, V., Pirronello, O., Pisanti, M., Platino, J., Pochon, V. H., Ponce, M., Pontz, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, G., Raia, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, H. C., Rei, S., Reucroft, B., Revenu, F. A. S., Rezendem, J., Ridky, S., Riggi, M., Risse, C., Riviere, V., Rizi, C., Robledo, M. D., Robert, G., Rodriguez, J., Ro driguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodrıguez Fria, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouille d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, G., Schleif, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, G., Sequiero, M., Settimo, R. C., Shellard, I., Sidelnik, B. B., Siffert, A., Smiakowski, R., Smıda, A. G. K., Smith, B. E., Smith, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, T., Tarutina, O., Tascau, R., Tcaciuc, D., Tcherniakhovski, N. T., Thao, D., Thoma, R., Ticona, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, B., Tome, A., Tonachini, I., Torre, P., Trapani, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, V., Tuci, M., Tuero, E., Tusi, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, J. R., Vazquez, R. A., Vazquez, D., Veberic, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, G., Vitali, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, S., Westerhoff, B. J., Whelan, N., Wild, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, G., Worner, H., Wuac, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M. Z. i. o. l. k. o. w. s. k., I., Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, KVI - Center for Advanced Radiation Technology, and Research unit Astroparticle Physics

Subjects
Source code, Astronomy, computer.software_genre, 01 natural sciences, Observatory, Auger experiment, Radio detection, SOFTWARES (ANÁLISE), Instrumentation, cosmic rays, radio detection, analysis software, detector simulation, media_common, Physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - Instrumentation and Methods for Astrophysics, Computer hardware, Nuclear and High Energy Physics, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Analysis software, Detector simulation, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmic Ray, Nuclear physics, RAY AIR-SHOWERS, 0103 physical sciences, DETECTORS, Instrumentation (computer programming), 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cosmic rays, Ciencias Exactas, Nuclear and High Energy Physic, Pierre Auger Observatory, 010308 nuclear & particles physics, business.industry, Física, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Software framework, Air shower, Experimental High Energy Physics, EMISSION, business, computer, MONTE-CARLO SIMULATIONS
Abstract

The advent of the Auger Engineering Radio Array (AERA) necessitates the development of a powerful framework for the analysis of radio measurements of cosmic ray air showers. As AERA performs ‘‘radio- hybrid’’ measurements of air shower radio emission in coincidence with the surface particle detectors and fluorescence telescopes of the Pierre Auger Observatory, the radio analysis functionality had to be incorporated in the existing hybrid analysis solutions for fluorescence and surface detector data. This goal has been achieved in a natural way by extending the existing Auger Offline software framework with radio functionality. In this article, we lay out the design, highlights and features of the radio extension implemented in the Auger Offline framework. Its functionality has achieved a high degree of sophistication and offers advanced features such as vectorial reconstruction of the electric field, advanced signal processing algorithms, a transparent and efficient handling of FFTs, a very detailed simulation of detector effects, and the read-in of multiple data formats including data from various radio simulation codes. The source code of this radio functionality can be made available to interested parties on request., La lista completa de autores puede consultarse en el documento o en la página web de la revista., Facultad de Ciencias Exactas

Published
2011
Full Text
View/download PDF

45. Design and construction of an extended range bonner spectrometer

Author

A. Varela, R. Policroniades, G. Murillo, E. Moreno, E. Chávez, A. Huerta, E. Andrade, and M.E. Ortiz

Subjects
Bonner sphere spectrometer, Física, Astronomía y Matemáticas, Cosmic, ray neutrons, Cosmic-ray neutrons, neutron detector
Abstract

"In this work we describe the design and construction of an extended range Bonner Sphere Spectrometer (BSS) intended to be used in the measurement of the energy spectra of neutrons produced by cosmic radiation. A single BSS spectrometer designed and constructed by us, has been used for a long time as neutron monitor at the tandem accelerator of the National Institute for Nuclear Research (ININ, México). The extended spheres added are 10 and 6 inch diameters with copper, bismuth and lead as inner shells. The measurements are to be initiated at the Physics Institute UNAM México (IFUNAM) and at the Mexican Nuclear Center, near 3000 meters high."

Published
2011

46. O16breakup in quasielastic reactions near the Fermi energy

Author

Yuen-Dat Chan, E. Chavez-Lomeli, S. B. Gazes, J. Wilczynski, R. G. Stokstad, E. Plagnol, A. Dacal, M.E. Ortiz, and K. Siwek-Wilczyńska

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Scattering, Nuclear Theory, Alpha particle, Inelastic scattering, Breakup, 01 natural sciences, Charged particle, Excited state, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, Nucleon
Abstract

The quasielastic breakup of an [sup 16]O nucleus at 32.5 MeV/nucleon on a [sup 197]Au target has been investigated by measuring the projectilelike fragments in coincidence with the emitted light charged particles. It is found that the breakup proceeds via sequential, two-step processes in which inelastic scattering and one-neutron pickup are the most significant components in the formation of the primary fragment. This is followed by statistical decay of the highly excited primary fragment. A Monte Carlo simulation was used to identify these processes and to deduce differential and total cross sections for the breakup of [sup 16]O into the [alpha]+[sup 12,13]C channels.

Published
1993
Full Text
View/download PDF

47. PIXE analysis of cave sediments, prehispanic paintings and obsidian cutting tools from Baja California Sur caves

Author

F. Cruz, J.L. Ruvalcaba, R. Viñas, M.E. Ortiz, A. Dacal, Javier Miranda, and Alicia Oliver

Subjects
Nuclear and High Energy Physics, Painting, geography, geography.geographical_feature_category, Cave, Mineralogy, Instrumentation, Archaeology, Geology
Abstract

Elemental PIXE analysis of cave sediments, minerals, pigments of the prehispanic paintings and obsidian cutting tools from caves in Baja California Sur has been carried out with a 0.7 MeV proton beam. The elements analysed in this sample set (Al to Co) provide an idea of the environment of the caves. The obsidian data analysis suggests that the human communities who made these painting used more than one obsidian source to manufacture cuttings tools.

Published
1993
Full Text
View/download PDF

48. Trigger and aperture of the surface detector array of the Pierre Auger Observatory

Author

Paulo J. S. Gonçalves, M.E. Ortiz, L. Perrone, M. Gold, J. Chauvin, A. F. Barbosa, M. Ave, D. Pakk Selmi-Dei, R. Sato, A. Segreto, E. Santo, B. Rouillé-D'Orfeuil, Ralf Ulrich, R. E. Burton, G. De La Vega, Markus Risse, T. Tarutina, Paul M. Mantsch, E. Strazzeri, Radomir Smida, J. L. Navarro, G. Rodriguez, J. G. Gonzalez, A. Lopez Agüera, C. Delle Fratte, F. Sánchez, Iván Sidelnik, Alberto Filevich, Peter Hansen, J. Rodriguez Rojo, Daniel Gonzalez, Azadeh Keivani, U. Froehlich, O. Blanch-Bigas, F. Guarino, J. F. Valdés Galicia, S. Gambetta, A. Ferrero, Sergio Sciutto, Enrique Zas, I. M. Pepe, Peter Buchholz, M. Gómez Berisso, R. C. Shellard, R. Piegaia, X. Garrido, I. De Mitri, Dieter Heck, H. Cook, J. W. Cronin, Nataliia Borodai, A. Anzalone, S. J. De Jong, Pierre Billoir, D. Thomas, A. Curutiu, H. Dembinski, M. Zavrtanik, A. Horneffer, P. Petrinca, J. S. Díaz, J. R. T. de Mello Neto, T. Karova, H. Glass, Marco Aglietta, C. Di Giulio, Fernando Contreras, Balázs Kégl, A. D. Supanitsky, A. Tamashiro, Nicolás G. Busca, M. I. Micheletti, Petr Travnicek, T. Bergmann, Hernán Asorey, A. C. Rovero, F. Ionita, M. Prouza, P. Abreu, D. Ravignani, V. de Souza, Fred Sarazin, Hermann-Josef Mathes, M. A. Leigui de Oliveira, R. Tcaciuc, B. J. Whelan, A. Italiano, C. Bleve, Arnulfo Zepeda, A. Bellétoile, H. Lyberis, Luis A. Anchordoqui, I. Lhenry-Yvon, G. Decerprit, R. Cester, E. Moreno, L. Nozka, S. Riggi, I. Rodriguez-Cabo, F. Schroeder, F. Montanet, J. C. dos Anjos, Michael DuVernois, D. Maurizio, G. Matthiae, A. Krieger, C. Aramo, J. Abraham, S. Parlati, L. del Peral, Richard Dallier, Christopher Morris, M. Hussain, G. Cataldi, Vincenzo Rizi, M. Platino, Rúben Conceição, Pascal Lautridou, M. Monasor, Warner A. Miller, Eun-Joo Ahn, Beatriz B. Siffert, P. Schiffer, Miguel Mostafá, L. Voyvodic, Juan Carlos D'Olivo, T. Pierog, Dariusz Gora, T. Rossler, M. Ziolkowski, O. Martínez Bravo, W. J. M. de Mello Junior, V. H. Ponce, S. Harmsma, Esteban Roulet, V. Scherini, Osvaldo Catalano, F. Salamida, Fabian Schmidt, A. G. Mariazzi, C. Robledo, Jaime Alvarez-Muñiz, D. Schuster, Antonio Bueno, Sergio Pastor, D. Kruppke-Hansen, Gualberto Avila, P. Bauleo, Ingomar Allekotte, Pham Ngoc Diep, Heino Falcke, Hernan Wahlberg, Dusan Mandat, C. E. Santo, J. Rodriguez Martino, J. Petrovic, L. Nellen, G. Wieczorek, Marco Iarlori, T. Schmidt, S. Dagoret-Campagne, N. Scharf, Francisco J. Blanco, Michael Urban, Piera Luisa Ghia, Y. Guardincerri, N. Nierstenhoefer, F. Gomez Albarracin, O. Tascau, A. Redondo, D.V. Semikoz, Kai Daumiller, M. Grigat, Antonio Insolia, B. Wilczynska, L. Valore, J. D. Swain, Marcio Aparecido Muller, Angela V. Olinto, J. Parrisius, K. Louedec, A. Schmidt, E. D. Fraenkel, Serguei Vorobiov, A. Tamburro, R. M. de Almeida, M. G. Winnick, C. Morello, K. D. de Vries, Matthias Balzer, Markus Roth, B. Keilhauer, S. L. C. Barroso, Maria-Teresa Dova, D. Monnier Ragaigne, A. Gorgi, Marcos Santander, R. Pelayo, D. B. Tridapalli, J. Allen, M. Kleifges, D. Zavrtanik, W. Fulgione, A. Della Selva, Ernesto Arganda, P. Ristori, V. M. Olmos-Gilbaja, C. Pfendner, I. Zaw, J. R. Hoerandel, V. Halenka, B. Tome, Peter Mazur, A. Smialkowski, H. Schieler, N. Kunka, M. Kaducak, J. Knapp, Peter L. Biermann, E. Petermann, S. Mueller, J. L. Kelley, D. García Gámez, Miroslav Pech, M. C. Maccarone, A. Criss, Maria Giller, Karl-Heinz Kampert, Antonella Castellina, Daniel Omar Badagnani, Graciela B. Gelmini, N. Palmieri, S. Jiraskova, Vincent Marin, J. Lozano Bahilo, Segev BenZvi, Zbigniew Szadkowski, Mariangela Settimo, Paolo Privitera, Alexey Yushkov, A. Dorofeev, Tonia M. Venters, Valerio Pirronello, K. Arisaka, M. S. Sutherland, U. Giaccari, S. Mićanović, B. M. Baughman, T. Suomijärvi, N. Pacheco, J. Pallotta, C. Meurer, A. Menshikov, E. J. Quel, E. Trovato, R. Pesce, J. A.J. Matthews, Xavier Bertou, A. Filipcic, C. J. Todero Peixoto, Corbin Covault, Diego Harari, F. Suarez, Thomas Hebbeker, Y. Petrov, Piotr Homola, S. R. Gozzini, R. Knapik, A. Chou, P. Facal San Luis, G. Tristram, B. L. Lago, Sofia Andringa, M. Palatka, Petr Schovanek, Geraldina Golup, Alexander Grillo, S. Fliescher, R. Mussa, S. Westerhoff, Jan Pękala, A. Chiavassa, K. B. Barber, L. Villaseñor, Pedro Assis, P. W. Younk, M. Blanco, J. J. Beatty, D. Nitz, Lino Miramonti, Silvia Mollerach, Alain Hervé, J. Coppens, E. M. Santos, L. R. Wiencke, C. L. Williams, A. Etchegoyen, H. Bluemer, H. M. Spinka, P. T. Nhung, Javier Tiffenberg, D. Nosek, N. Fazzini, A. C. Fauth, Carla Bonifazi, Jose A. Bellido, Bruce R. Dawson, Tim Huege, E. Colombo, L. Caramete, A. Parra, M. D. Rodríguez-Frías, Jeffrey Brack, Olaf Scholten, A. Haungs, H. Wilczyński, Jaime Rosado, Julien Aublin, S. Grebe, Humberto Ibarguen Salazar, F. A. S. Rezende, Ivor Fleck, R. Squartini, John L. Harton, B. Morales, B. García, Mario Scuderi, T. Paul, C. De Donato, S. Navas, Tobias Winchen, M. Melissas, P. Lebrun, G. Yuan, G. Marsella, Matias Tueros, Olivier Ravel, C. E. Fracchiolla, E. Grashorn, R. López, Karen S. Caballero-Mora, G. Navarra, E. Menichetti, T. Antičić, D. D'Urso, Corinne Berat, Kreso Kadija, T. Yamamoto, R. A. Vázquez, G. Parente, John G. Lee, E. Parizot, Ernesto Kemp, J. Stasielak, S. Coutu, V. Verzi, Brian Fick, J. Oehlschlaeger, G. Medina-Tanco, W. Tkaczyk, M. Nyklicek, M. Ludwig, D. Martello, H. R. Marquez Falcon, M. L. Díaz Castro, G. Farrar, M. Pontz, Martin Erdmann, F. Schuessler, S. Petrera, Subir Sarkar, Carola Dobrigkeit, R. F. Gamarra, I. Valiño, P. Wahrlich, Roger W Clay, Alexander Kusenko, Maurice Stephan, Denise Boncioli, German Ros, D. Allard, K.-H. Becker, M. Pimenta, Alan Watson, M. Mcewen, B. Revenu, A. Tonachini, T. Baecker, J. R. Vázquez, Domenico Tegolo, J. Kleinfeller, Alessandro Petrolini, J. Schovancova, Daniel Kuempel, Carlos Escobar, A. Creusot, C. Lachaud, D. Garcia-Pinto, A. Cordier, S. Maldera, P. Brogueira, M. S. A. B. Leão, Jiri Chudoba, N. T. Thao, D. Warner, S. Schulte, Vasiliki Pavlidou, Lisa M. Goggin, John N. Matthews, R. Bruijn, R. M. Kieckhafer, Juan Moreno, J. Rautenberg, M. Ambrosio, C. Macolino, C. Hojvat, Jan Ebr, O. Wainberg, W. C. Brown, D. Tcherniakhovski, H. Schoorlemmer, R. D. Parsons, Guenter Sigl, Umberto Cotti, H.O. Klages, B. Wundheiler, Gregory R Snow, P. H. Kasper, Gaetano Salina, Paul Sommers, A.M. van den Berg, K. Payet, Darko Veberič, P. Gouffon, P. N. Dong, M. J. Cooper, R. Bonino, J. D. Hague, M. De Domenico, F. Arqueros, P. Necesal, Maria Rita Coluccia, Martina Bohacova, A. Tapia, H. Gemmeke, Miroslav Hrabovsky, J. Sorokin, M. Unger, Rossella Caruso, Pietro Oliva, A. Lucero, G. La Rosa, M. Videla, Germano Guedes, Olivier Deligny, V. C. Holmes, D. Lebrun, I. Dutan, Ioana Codrina Maris, A. Lemiere, B. R. Becker, F. Kuehn, Ralph Engel, D. H. Koang, J. Ridky, T. Susa, A. Stutz, O. Kroemer, Jose Chinellato, Charles Timmermans, C. Riviere, A. Letessier-Selvon, Lorenzo Cazon, K. Kulbartz, D. Melo, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, J., Abraham, P., Abreu, M., Aglietta, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, J., ALVAREZ MUNIZ, M., Ambrosio, L., Anchordoqui, S., Andringa, T., Anticic, A., Anzalone, C., Aramo, E., Arganda, K., Arisaka, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, T., Backer, D., Badagnani, M., Balzer, K. B., Barber, A. F., Barbosa, S. L. C., Barroso, B., Baughman, P., Bauleo, J., Beatty, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, X., Bertou, P. L., Biermann, P., Billoir, O., BLANCH BIGAS, F., Blanco, M., Blanco, Bleve, Carla, H., Blumer, M., Bohacova, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N., Busca, K. S., CABALLERO MORA, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, F., Contrera, H., Cook, M., Cooper, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., DAGORET CAMPAGNE, R., Dallier, K., Daumiller, B. R., Dawson, R. M., De, Almeida, M., Dedomenico, C., Dedonato, S. J., Dejong, G., Delavega, W. J. M., Demellojunior, J., Demelloneto, DE MITRI, Ivan, V., Desouzam, K. D., Devrie, G., Decerprit, L., Delperal, O., Deligny, A., Dellaselva, C., Dellefratte, H., Dembinski, C., Digiulio, J. C., Diaz, M., Castro, P. N., Diep, C., Dobrigkeit, J. C., Dolivo, P. N., Dong, A., Dorofeev, J. C., Dosanjo, M., Dova, D., Durso, I., Dutan, M. A., Duvernoi, J., Ebr, R., Engel, M., Erdmann, C., O, A., Etchegoyen, P., Facalsanlui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, U., Frohlich, W., Fulgione, R. F., Gamarra, S., Gambetta, B., Garcia, D., Gamez, D., GARCIA PINTO, X., Garrido, G., Gelmini, H., Gemmekeag, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, L., Goggin, M. S., Gold, G., Golup, F., Gomezalbarracin, M., Berisso, P., GONC ALVES, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, M., Grigat, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, V. C., Holme, P., Homola, J. R., Horandel, A., Horneffer, M., Hrabovsky, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, K., Kadija, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Kegl, B., Keilhauer, A., Keivani, J., Kelley, E., Kempo, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Krieger, O., Kromer, D., KRUPPKE HANSEN, F., Kuehn, D., Kuempel, K., Kulbartz, N., Kunka, A., Kusenko, G., Larosa, C., Lachaud, B., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguideoliveira, A., Lemiere, A., LETESSIER SELVON, I., LHENRY YVON, R., Lopez, A., Lopezaguera, K., Louedec, J., Lozanobahilo, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari, H., Falcon, Marsella, Giovanni, Martello, Daniele, O., Bravo, H. J., Mathe, J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewenbp, G., MEDINA TANCO, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, C., Meurer, S., Micanovic, M. I., Micheletti, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnierragaigne, F., Montanet, B., Morale, C., Morello, E., Ba, J. C., Moreno, C., Morri, M., Mostafa, S., Mueller, M., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, P., Nhung, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V., Br, M., Ortiz, N., Pacheco, D., PAKKSELMI DEI, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, S., Parlati, A., Parra, J., Parrisiu, R., Parson, S., Pastor, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, R., Pelayo, I., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, R., Piegaia, T., Pierog, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, B., Revenu, F. A. S., Rezende, J., Ridky, S., Riggi, M., Risse, P., Ristori, C., Riviere, V., Rizi, C., Robledo, G., Rodriguez, J., Rodriguezmartino, J., Rodriguezrojo, I., RODRIGUEZ CABO, M. D., RODRIGUEZ FRIAS, G., Ro, J., Rosado, T., Rossler, M., Roth, B., ROUILLE DORFEUIL, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, Settimo, Mariangela, R., Shellard, I., Sidelnik, B. B., Siffert, G., Sigl, A., Smiakowski, R., Smida, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, J., Stasielak, M., Stephan, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, T., Susa, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, A., Tapia, T., Tarutina, O., TAS CAU, R., Tcaciuc, D., Tcherniakhovski, D., Tegolo, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Toderopeixoto, B., Tome, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J., Galicia, I., Valino, L., Valore, A. M., Vandenberg, J. R., Vazquez, R. A., Vazquez, D., Veberic, T., Venter, V., Verzi, M., Videla, L., Villasenor, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, A. A., Watson, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., William, T., Winchen, M. G., Winnick, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M., Ziolkowski, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, Guarino, Fausto, D'Urso, Domenico, Valore, Laura, Aramo, Carla, DELLA SELVA, Angelo, Yushkov, Alexey, The Pierre Auger, Collaboration, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, Abraham, J., Abreu, P., Aglietta, M., Ahn, E., Allard, D., Allekotte, I., Allen, J., Alvarez-Muñiz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Antičić, T., Anzalone, A., Aramo, C., Arganda, E., Arisaka, K., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Balzer, M., Barber, K., Barbosa, A., Barroso, S., Baughman, B., Bauleo, P., Beatty, J., Becker, B., Becker, K., Bellétoile, A., Bellido, J., Benzvi, S., Berat, C., Bergmann, T., Bertou, X., Biermann, P., Billoir, P., Blanch-Bigas, O., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Busca, N., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Clay, R., Colombo, E., Coluccia, M., Conceição, R., Contreras, F., Cook, H., Cooper, M., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Daumiller, K., Dawson, B., de Almeida, R., De Domenico, M., De Donato, C., de Jong, S., De La Vega, G., de Mello Junior, W., de Mello Neto, J., De Mitri, I., de Souza, V., de Vries, K., Decerprit, G., del Peral, L., Deligny, O., Della Selva, A., Delle Fratte, C., Dembinski, H., Di Giulio, C., Diaz, J., Díaz Castro, M., Diep, P., Dobrigkeit, C., D'Olivo, J., Dong, P., Dorofeev, A., dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Duvernois, M., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Etchegoyen, A., Facal San Luis, P., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferrero, A., Fick, B., Filevich, A., Filipčič, A., Fleck, I., Fliescher, S., Fracchiolla, C., Fraenkel, E., Fröhlich, U., Fulgione, W., Gamarra, R., Gambetta, S., García, B., García Gámez, D., Garcia-Pinto, D., Garrido, X., Gelmini, G., Gemmeke, H., Ghia, P., Giaccari, U., Giller, M., Glass, H., Goggin, L., Gold, M., Golup, G., Gomez Albarracin, F., Gómez Berisso, M., Gonçalves, P., Gonzalez, D., Gonzalez, J., Góra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Hague, J., Halenka, V., Hansen, P., Harari, D., Harmsma, S., Harton, J., Haungs, A., Hebbeker, T., Heck, D., Herve, A., Hojvat, C., Holmes, V., Homola, P., Hörandel, J., Horneffer, A., Hrabovský, M., Huege, T., Hussain, M., Iarlori, M., Insolia, A., Ionita, F., Italiano, A., Jiraskova, S., Kadija, K., Kaducak, M., Kampert, K., Karova, T., Kasper, P., Kégl, B., Keilhauer, B., Keivani, A., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleifges, M., Kleinfeller, J., Knapik, R., Knapp, J., Koang, D., Krieger, A., Krömer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, K., Kunka, N., Kusenko, A., La Rosa, G., Lachaud, C., Lago, B., Lautridou, P., Leão, M., Lebrun, D., Lebrun, P., Lee, J., Leigui de Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Marin, V., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martínez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Mcewen, M., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Meurer, C., Mičanović, S., Micheletti, M., Miller, W., Miramonti, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, E., Moreno, J., Morris, C., Mostafá, M., Mueller, S., Muller, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Nhung, P., Nierstenhoefer, N., Nitz, D., Nosek, D., Nožka, L., Nyklicek, M., Oehlschläger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parlati, S., Parra, A., Parrisius, J., Parsons, R., Pastor, S., Paul, T., Pavlidou, V., Payet, K., Pech, M., Pe ̧kala, J., Pelayo, R., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Piegaia, R., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Rautenberg, J., Ravel, O., Ravignani, D., Redondo, A., Revenu, B., Rezende, F., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rivière, C., Rizi, V., Robledo, C., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodríguez-Frías, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouillé-d'Orfeuil, B., Roulet, E., Rovero, A., Salamida, F., Salazar, H., Salina, G., Sánchez, F., Santander, M., Santo, C., Santo, E., Santos, E., Sarazin, F., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Schmidt, F., Schmidt, T., Scholten, O., Schoorlemmer, H., Schovancova, J., Schovánek, P., Schroeder, F., Schulte, S., Schüssler, F., Schuster, D., Sciutto, S., Scuderi, M., Segreto, A., Semikoz, D., Settimo, M., Shellard, R., Sidelnik, I., Siffert, B., Sigl, G., Śmiałkowski, A., Šmída, R., Snow, G., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Stasielak, J., Stephan, M., Strazzeri, E., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A., Šua, T., Sutherland, M., Swain, J., Szadkowski, Z., Tamashiro, A., Tamburro, A., Tapia, A., Tarutina, T., Taşcǎu, O., Tcaciuc, R., Tcherniakhovski, D., Tegolo, D., Thao, N., Thomas, D., Tiffenberg, J., Timmermans, C., Tkaczyk, W., Todero Peixoto, C., Tomé, B., Tonachini, A., Travnicek, P., Tridapalli, D., Tristram, G., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J., Valiño, I., Valore, L., van den Berg, A., Vázquez, J., Vázquez, R., Veberič, D., Venters, T., Verzi, V., Videla, M., Villaseñor, L., Vorobiov, S., Voyvodic, L., Wahlberg, H., Wahrlich, P., Wainberg, O., Warner, D., Watson, A., Westerhoff, S., Whelan, B., Wieczorek, G., Wiencke, L., Wilczyńska, B., Wilczyński, H., Williams, C., Winchen, T., Winnick, M., Wundheiler, B., Yamamoto, T., Younk, P., Yuan, G., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., and Ziolkowski, M.

Subjects
Ultra high energy cosmic rays, Auger Observatory, Extensive air showers, Trigger, Exposure, Physics::Instrumentation and Detectors, Astronomy, High-Energy Cosmi Ray, 7. Clean energy, 01 natural sciences, Auger, Acceptance and Trigger Efficiency, 010303 astronomy & astrophysics, Instrumentation, ComputingMilieux_MISCELLANEOUS, Physics, Range (particle radiation), Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Pierre Auger Observatory, High energy, Física nuclear, Astrophysics - Instrumentation and Methods for Astrophysics, Nuclear and High Energy Physics, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], AIR SHOWERS, Aperture, Astrophysics::High Energy Astrophysical Phenomena, Extensive air shower, FOS: Physical sciences, Cosmic ray, ENERGIA, Cosmic Ray, Ultra high energy cosmic ray, Optics, ultra high energy, cosmic rays, Auger Observatory, extensive airshowers, trigger exposure, 0103 physical sciences, PARTICLES, Surface Detector, Instrumentation and Methods for Astrophysics (astro-ph.IM), Zenith, Ciencias Exactas, Nuclear and High Energy Physic, 010308 nuclear & particles physics, business.industry, Física, Ultra-high energy cosmic rays, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Experimental High Energy Physics, High Energy Physics::Experiment, business
Abstract

The surface detector array of the Pierre Auger Observatory consists of 1600 water-Cherenkov detectors, for the study of extensive airshowers (EAS) generated by ultra-high-energy cosmic rays. We describe the trigger hierarchy, from the identification of candidates howers at the level of a single detector, amongst a large background (mainly random single cosmic ray muons), up to the selection of real events and the rejection of random coincidences. Such trigger makes the surface detector array fully efficient for the detection of EAS with energy above 3 x 1018 eV, for all zenith angles between 03 and 603, independently of the position of the impact point and of the mass of the primary particle. In the serange of energies and angles, the exposure of the surface array can be determined purely on the basis of the geometrical acceptance., La lista completa de autores puede consultarse en el documento o en la página web de la revista., Facultad de Ciencias Exactas

Published
2010
Full Text
View/download PDF

49. Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter

Author

M. Videla, M. Avenier, L. Nožka, G. Cataldi, I. Lhenry-Yvon, M. G. Winnick, Marcos Santander, Peter Mazur, Tanguy Pierog, J. Knapp, L. del Peral, L. Caramete, H. Gemmeke, W. J. M. de Mello Junior, J. Rodriguez Martino, J. Petrovic, R. Mussa, Ivor Fleck, K. Louedec, G. Yuan, B. Zamorano, Azadeh Keivani, M.E. Ortiz, Daniel Omar Badagnani, Ralf Ulrich, Paul M. Mantsch, Anderson Fauth, S. Gambetta, R. Piegaia, N. Nierstenhoefer, Antoine Letessier-Selvon, Alexander Schmidt, K. Arisaka, U. Giaccari, Petr Schovanek, J. W. Cronin, Nataliia Borodai, A. Śmiałkowski, Dusan Mandat, Ioana Codrina Maris, Ricardo Vázquez, B. R. Becker, Moritz Münchmeyer, Ralph Engel, D. H. Koang, E. Moreno, T. Susa, A. Stutz, Christopher Morris, Jaime Alvarez-Muñiz, D. Schuster, L. Winders, S. Grebe, Matias Tueros, R. Squartini, John L. Harton, E. Grashorn, T. Paul, T. Antičić, Olivier Ravel, E. Menichetti, A. F. Barbosa, M. Ave, R. E. Burton, R. M. de Almeida, Dariusz Gora, T. Rossler, Fabian Schmidt, K. Link, Miroslav Hrabovský, A. Haungs, Maria-Teresa Dova, Paul Sommers, P. N. Dong, M. J. Cooper, J. D. Hague, M. De Domenico, Maria Rita Coluccia, P. Abreu, D. Ravignani, Luis A. Anchordoqui, Sergio Sciutto, Federico Suarez, B. Rouillé-D'Orfeuil, D. B. Tridapalli, J. Allen, R. Pesce, B. M. Baughman, A. Chou, M. Platino, M. Monasor, Markus Roth, J. F. Valdés Galicia, X. Garrido, I. De Mitri, Dieter Heck, Martin Urban, C. Macolino, J. Oehlschläger, B. J. Whelan, A. Lopez Agüera, D. Maurizio, Domenico Tegolo, P. W. Younk, T. Bäcker, Alberto Filevich, Peter Hansen, Fausto Guarino, C. Aramo, John Matthews, C. Morello, Peter Buchholz, Francisco J. Blanco, V. H. Ponce, R. Sato, Jiri Chudoba, Carola Dobrigkeit, R. F. Gamarra, I. Valiño, Nicolás G. Busca, M. I. Micheletti, M. A. Leigui de Oliveira, R. Tcaciuc, F. Schroeder, F. Montanet, J. C. dos Anjos, K. D. de Vries, Matthias Balzer, Pham Ngoc Diep, A. Lemiere, H. Glass, F. Gomez Albarracin, V. Scherini, P. Wahrlich, J. R. T. de Mello Neto, Alan Watson, W. Fulgione, Marco Aglietta, Heino Falcke, Arnulfo Zepeda, A. Bellétoile, Antonio Bueno, Sergio Pastor, Jonny Kleinfeller, A. Gorgi, J. Alvarez Castillo, G. Decerprit, Glennys R. Farrar, Jose Chinellato, Tonia M. Venters, P. Gonalves, D. Garcia-Pinto, M. S. A. B. Leão, C. E. Fracchiolla, G. Wieczorek, T. Schmidt, D. D'Urso, Peter L. Biermann, Gualberto Avila, K. Kotera, Ingomar Allekotte, Miroslav Palatka, Angela V. Olinto, Valerio Pirronello, S. Dagoret-Campagne, Corinne Berat, S. J. De Jong, E. Parizot, C. E. Santo, Pascal Lautridou, P. Schiffer, D. Thomas, A. Curutiu, N. Palmieri, S. Jiraskova, Vincent Marin, N. Krohm, Paolo Privitera, Vasiliki Pavlidou, W. Tkaczyk, S. Schulte, F. Arqueros, J. Pȩkala, P. Necesal, A. Menshikov, Martina Bohacova, Lorenzo Cazon, P. Billoir, Zbigniew Szadkowski, M. Gold, H. Rivera, S. Mueller, Rodrigo Pelayo, P. Karhan, R. M. Kieckhafer, Juan Moreno, J. Rautenberg, O. Wainberg, C. J.W.P. Timmermans, C. Lachaud, C. Meurer, T. Karova, J. Sorokin, Graciela B. Gelmini, E. Trovato, D. Tcherniakhovski, H. Schoorlemmer, W. C. Brown, J. Lozano Bahilo, John Swain, Guenter Sigl, Markus Risse, U. Cotti, A. Dorofeev, B. Gookin, A. Horneffer, P. Petrinca, T. Tarutina, K. Weidenhaupt, Matthias Kleifges, Corbin Covault, Y. Petrov, Germano Guedes, Olivier Deligny, Alexander Grillo, S. Fliescher, E. Petermann, E. M. Santos, M. Gómez Berisso, R. C. Shellard, A. Tapia, Balázs Kégl, D. García Gámez, Miroslav Pech, Lino Miramonti, C. Rivire, M. Unger, L. Villaseñor, A. D. Supanitsky, Hernán Asorey, H. Lyberis, Carla Bonifazi, O. Tacu, Jose A. Bellido, Bruce R. Dawson, J. S. Díaz, Rémi Bardenet, M. Zavrtanik, A. Della Selva, Hans Klages, A. Chiavassa, Henryk Wilczyński, Fred Sarazin, Lukas Nellen, Tim Huege, M. Wommer, Ernesto Arganda, L. Martin, P. Gouffon, M. D. Rodríguez-Frías, Y. Guardincerri, Gaetano Salina, Petr Travnicek, F. Ionita, M. S. Sutherland, Jaime Rosado, K. B. Barber, J. L. Kelley, A. Italiano, L. R. Wiencke, I. Rodriguez-Cabo, R. Cester, Danilo Zavrtanik, S. R. Gozzini, A.M. van den Berg, K. Payet, G. De La Vega, B. Morales, Darko Veberič, Rossella Caruso, Pietro Oliva, A. Lucero, C. Robledo, G. La Rosa, E. Strazzeri, Sofia Andringa, B. Vargas Cárdenas, D. K. Tiwari, J. A.J. Matthews, T. Suomijärvi, J. Pallotta, M. Prouza, E. J. Quel, Xavier Bertou, N. Pacheco, J. Rodriguez Rojo, Bianca Keilhauer, B. Tome, Pedro Assis, Béatrice Fuchs, M. Blanco, Javier Tiffenberg, V. C. Holmes, D. Lebrun, I. Dutan, Jan Ridky, Enrique Zas, I. M. Pepe, C. Di Giulio, R. Bonino, Fernando Contreras, J. Stasielak, S. Coutu, Norberto Fazzini, A. Denkiewicz, M. Nyklicek, M. McEwen, P. T. Nhung, A. Ferrero, S. Navas, F. Kuehn, M. C. Maccarone, M. Melissas, E. Colombo, Hernan Wahlberg, D. Kruppke-Hansen, A. Filipčič, Javier Gonzalez, D. Nosek, M. Will, G. Marsella, E. D. Fraenkel, Marcio Aparecido Muller, J. Parrisius, Jan Ebr, Sergio Petrera, G. Parente, P. Ristori, V. M. Olmos-Gilbaja, D. Allard, A. Weindl, Subir Sarkar, B. Revenu, Carlos Hojvat, Ernesto Kemp, A. Gascon, E. Santos, Denise Boncioli, G. Golup, J. K. Kulbartz, Kreso Kadija, G. Tristram, U. Fröhlich, D. Pakk Selmi-Dei, J. R. Vázquez, German Ros, H. R. Marquez Falcon, V. Verzi, M. Kaducak, Mariangela Settimo, D. Harari, Alessandro Petrolini, Pedro Brogueira, Alexey Yushkov, Miguel Mostafá, J. Schovancova, M. L. Díaz Castro, J. L. Navarro, H. Blümer, R. Conceião, Piotr Homola, Daniel Gonzalez, P. Facal San Luis, H. Schieler, Karl-Heinz Kampert, Antonella Castellina, Hermann-Josef Mathes, Maurice Stephan, C. L. Williams, H. M. Spinka, O. Krömer, S. Riggi, A. P. Ferguson, M. Pimenta, A. Tonachini, F. Salamida, J. Stapleton, Kai Daumiller, M. Grigat, Mario Scuderi, Tobias Winchen, P. Lebrun, Karen S. Caballero-Mora, Daniel Kuempel, M. Ludwig, Martin Erdmann, Beatriz García, Carlos Escobar, A. Creusot, Roger W Clay, A. Cordier, S. Maldera, N. T. Thao, D. Warner, Gustavo Medina-Tanco, Thomas Hebbeker, Sergio Dasso, R. Bruijn, Richard Dallier, A. Parra, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, C. De Donato, G. Navarra, F. Schüssler, S. L.C. Barroso, T. Yamamoto, Brian Fick, Jörg R. Hörandel, T. Bergmann, Warner A. Miller, Antonio Insolia, L. Valore, Amin Aminaei, I. Zaw, B. Wilczynska, Sasa Micanovic, A. Criss, Maria Giller, M. Pontz, R. López, A. Shadkam, Juan Carlos D'Olivo, Esteban Roulet, Osvaldo Catalano, Piera Luisa Ghia, L. Perrone, J. Chauvin, A. Segreto, Radomir Smida, D. Melo, A. Anzalone, V. de Souza, R. D. Parsons, Alberto Etchegoyen, B. Wundheiler, Gregory R Snow, P. H. Kasper, N. Scharf, A. Tamashiro, D. Monnier Ragaigne, S. Harmsma, C. Pfendner, J. J. Beatty, Norbert Kunka, D. Nitz, Silvia Mollerach, Alain Hervé, J. Coppens, H. Dembinski, G. Matthiae, M. Ambrosio, Julien Aublin, K. Gesterling, D. Martello, G. Rodriguez, A. C. Rovero, C. Bleve, C. J. Todero Peixoto, Vincenzo Rizi, M. Ziolkowski, O. Martínez Bravo, F. Sánchez, Iván Sidelnik, H. Cook, N. Phan, Eun-Joo Ahn, K. H. Becker, A. G. Mariazzi, P., Abreu, M., Aglietta, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, J., Alvarez Castillo, J., Alvarez Muñiz, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Anticic, A., Anzalone, C., Aramo, E., Arganda, K., Arisaka, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, T., Bäcker, D., Badagnani, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman, J. J., Beatty, B. R., Becker, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H., Blümer, M., Bohácová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, O., Deligny, A., Della Selva, H., Dembinski, A., Denkiewicz, C., Di Giulio, J. C., Diaz, M. L., Díaz Castro, P. N., Diep, C., Dobrigkeit, J. C., D'Olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D'Urso, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, U., Fröhlich, B., Fuch, W., Fulgione, R. F., Gamarra, S., Gambetta, B., García, D., García Gámez, D., Garcia Pinto, X., Garrido, A., Gascon, G., Gelmini, H., Gemmeke, K., Gesterling, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, L. M., Goggin, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P., Gonçalve, D., Gonzalez, J. G., Gonzalez, B., Gookin, D., Góra, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, M., Grigat, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, J. D., Hague, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, V. C., Holme, P., Homola, J. R., Hörandel, A., Horneffer, M., Hrabovský, T., Huege, M., Hussain, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, K., Kadija, M., Kaducak, K. H., Kampert, P., Karhan, T., Karova, P., Kasper, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, F., Kuehn, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, P., Lautridou, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Lemiere, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, L., Martin, O., Martínez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewen, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, C., Meurer, S., Micanovic, M. I., Micheletti, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, C., Morri, M., Mostafá, S., Mueller, M. A., Muller, R., Mussa, G., Navarra ‡, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, P. T., Nhung, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nožka, M., Nyklicek, J., Oehlschläger, A., Olinto, P., Oliva, V. M., Olmos Gilbaja, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, J., Parrisiu, R. D., Parson, S., Pastor, T., Paul, V., Pavlidou c, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, N., Phan, R., Piegaia, T., Pierog, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, C., Rivière, V., Rizi, C., Robledo, G., Rodriguez, J., Rodriguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d'Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sánchez, M., Santander, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schroeder, S., Schulte, F., Schüssler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, Settimo, Mariangela, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, A., Smialkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, J., Stapleton, J., Stasielak, M., Stephan, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., Šuša, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tapia, T., Tarutina, O., Tascau, R., Tcaciuc, D., Tcherniakhovski, D., Tegolo, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, D. K., Tiwari, W., Tkaczyk, C. J., Todero Peixoto, B., Tomé, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, L., Valore, A. M., van den Berg, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberic, T., Venter, V., Verzi, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, A. A., Watson, K., Weidenhaupt, A., Weindl, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, M., Will, C., William, T., Winchen, L., Winder, M. G., Winnick, M., Wommer, B., Wundheiler, T., Yamamoto a, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M., Ziolkowski, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, Guarino, Fausto, D'Urso, Domenico, Valore, Laura, Aramo, Carla, DELLA SELVA, Angelo, Yushkov, Alexey, The Pierre Auger, C. o. l. l. a. b. o. r. a. t. i. o. n., Abreu, P., Aglietta, M., Ahn, E., Allard, D., Allekotte, I., Allen, J., Alvarez Castillo, J., Alvarez-Muñiz, J., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Antičić, T., Anzalone, A., Aramo, C., Arganda, E., Arisaka, K., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Bäcker, T., Badagnani, D., Balzer, M., Barber, K., Barbosa, A., Bardenet, R., Barroso, S., Baughman, B., Beatty, J., Becker, B., Becker, K., Bellétoile, A., Bellido, J., Berat, C., Bergmann, T., Bertou, X., Biermann, P., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Busca, N., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Clay, R., Colombo, E., Coluccia, M., Conceião, R., Contreras, F., Cook, H., Cooper, M., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Dasso, S., Daumiller, K., Dawson, B., De Almeida, R., De Domenico, M., De Donato, C., De Jong, S., De La Vega, G., De Mello Junior, W., De Mello Neto, J., De Mitri, I., De Souza, V., De Vries, K., Decerprit, G., Del Peral, L., Deligny, O., Della Selva, A., Dembinski, H., Denkiewicz, A., Di Giulio, C., Diaz, J., Díaz Castro, M., Diep, P., Dobrigkeit, C., D'Olivo, J., Dong, P., Dorofeev, A., Dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Etchegoyen, A., Facal San Luis, P., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferguson, A., Ferrero, A., Fick, B., Filevich, A., Filipčič, A., Fleck, I., Fliescher, S., Fracchiolla, C., Fraenkel, E., Fröhlich, U., Fuchs, B., Fulgione, W., Gamarra, R., Gambetta, S., García, B., García Gámez, D., Garcia-Pinto, D., Garrido, X., Gascon, A., Gelmini, G., Gemmeke, H., Gesterling, K., Ghia, P., Giaccari, U., Giller, M., Glass, H., Gold, M., Golup, G., Gomez Albarracin, F., Gómez Berisso, M., Gonalves, P., Gonzalez, D., Gonzalez, J., Gookin, B., Góra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Hague, J., Hansen, P., Harari, D., Harmsma, S., Harton, J., Haungs, A., Hebbeker, T., Heck, D., Herve, A., Hojvat, C., Holmes, V., Homola, P., Hörandel, J., Horneffer, A., Hrabovský, M., Huege, T., Insolia, A., Ionita, F., Italiano, A., Jiraskova, S., Kadija, K., Kaducak, M., Kampert, K., Karhan, P., Karova, T., Kasper, P., Kégl, B., Keilhauer, B., Keivani, A., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleifges, M., Kleinfeller, J., Knapp, J., Koang, D., Kotera, K., Krohm, N., Krömer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, J., Kunka, N., La Rosa, G., Lachaud, C., Lautridou, P., Leão, M., Lebrun, D., Lebrun, P., Leigui De Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Marin, V., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martin, L., Martínez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Mcewen, M., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Meurer, C., Mičanović, S., Micheletti, M., Miller, W., Miramonti, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, E., Moreno, J., Morris, C., Mostafá, M., Mueller, S., Muller, M., Münchmeyer, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Nhung, P., Nierstenhoefer, N., Nitz, D., Nosek, D., Nožka, L., Nyklicek, M., Oehlschläger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parra, A., Parrisius, J., Parsons, R., Pastor, S., Paul, T., Pavlidou, V., Payet, K., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Phan, N., Piegaia, R., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rivera, H., Rivire, C., Rizi, V., Robledo, C., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodríguez-Frías, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouillé-D'Orfeuil, B., Roulet, E., Rovero, A., Salamida, F., Salazar, H., Salina, G., Sánchez, F., Santander, M., Santo, C., Santos, E., Sarazin, F., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Schmidt, F., Schmidt, T., Scholten, O., Schoorlemmer, H., Schovancova, J., Schovánek, P., Schroeder, F., Schulte, S., Schüssler, F., Schuster, D., Sciutto, S., Scuderi, M., Segreto, A., Settimo, M., Shadkam, A., Shellard, R., Sidelnik, I., Sigl, G., Śmiałkowski, A., Šmída, R., Snow, G., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Stapleton, J., Stasielak, J., Stephan, M., Strazzeri, E., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A., Šuša, T., Sutherland, M., Swain, J., Szadkowski, Z., Tamashiro, A., Tapia, A., Tarutina, T., Tacu, O., Tcaciuc, R., Tcherniakhovski, D., Tegolo, D., Thao, N., Thomas, D., Tiffenberg, J., Timmermans, C., Tiwari, D., Tkaczyk, W., Todero Peixoto, C., Tomé, B., Tonachini, A., Travnicek, P., Tridapalli, D., Tristram, G., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J., Valiño, I., Valore, L., Van Den Berg, A., Vargas Cárdenas, B., Vázquez, J., Vázquez, R., Veberič, D., Venters, T., Verzi, V., Videla, M., Villaseñor, L., Wahlberg, H., Wahrlich, P., Wainberg, O., Warner, D., Watson, A., Weidenhaupt, K., Weindl, A., Whelan, B., Wieczorek, G., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Winders, L., Winnick, M., Wommer, M., Wundheiler, B., Yamamoto, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Ziolkowski, M., Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)

Subjects
Astronomy, Astrophysics, Ultra High Energy Cosmic ray, 01 natural sciences, law.invention, Observatory, law, Anisotropy, 010303 astronomy & astrophysics, media_common, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], UHECR, Astrophysics::Instrumentation and Methods for Astrophysics, Pierre Auger Observatory, GZK, Anisotropía, GALAXIES, NEUTRINOS, Greisen–Zatsepin–Kuz’min, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, ACTIVE GALACTIC NUCLEI, HIPASS CATALOG, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Active galactic nucleus, Radiación Cósmica, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Telescope, 0103 physical sciences, Cosmic rays, Ciencias Exactas, Astrophysics::Galaxy Astrophysics, SPECTRUM, 010308 nuclear & particles physics, Física, Astronomy and Astrophysics, Galaxy, Correlation with astrophysical sources, Extra-galactic, Sky, Experimental High Energy Physics
Abstract

Data collected by the Pierre Auger Observatory through 31 August 2007 showed evidence for anisotropy in the arrival directions of cosmic rays above the Greisen-Zatsepin-Kuz'min energy threshold, 6 x 10(19) eV. The anisotropy was measured by the fraction of arrival directions that are less than 3.1 degrees from the position of an active galactic nucleus within 75 Mpc (using the Veron-Cetty and Veron 12th catalog). An updated measurement of this fraction is reported here using the arrival directions of cosmic rays recorded above the same energy threshold through 31 December 2009. The number of arrival directions has increased from 27 to 69, allowing a more precise measurement. The correlating fraction is (38(-6)(+7))%, compared with 21% expected for isotropic cosmic rays. This is down from the early estimate of (69-(+11)(13))%. The enlarged set of arrival directions is examined also in relation to other populations of nearby extragalactic objects: galaxies in the 2 Microns All Sky Survey and active galactic nuclei detected in hard X-rays by the Swift Burst Alert Telescope. A celestial region around the position of the radiogalaxy Cen A has the largest excess of arrival directions relative to isotropic expectations. The 2-point autocorrelation function is shown for the enlarged set of arrival directions and compared to the isotropic expectation., We are very grateful to the following agencies and organizations for financial support: Comision Nacional de Energia Atomica, Fundacion Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargue, NDM Holdings and Valle Las Lenas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Ministerio de Ciencia e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB300100801 and KJB100100904, MSMT-CR LA08016, LC527, 1M06002, and MSM0021620859, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Regional Ile-de-France, Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), Departement Sciences de l'Univers (SDU-1NSU/CNRS), France; Bundesministerium fur Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-Wurttemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium fur Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium fur Wissenschaft, Forschung und Kunst, Baden-Wurttemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Istituto Nazionale di Astrofisica (INAF), Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. 1 P03 D 014 30 and N N202 207238, Poland; Fundacao para a Ciencia e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejeria de Educacion de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovacion and Consolider-Ingenio 2010 (CPAN), Generalitat Valenciana, Junta de Andalucia, Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DE-AC02-07CH11359, DE-FR02-04ER41300, National Science Foundation, Grant No. 0450696, The Grainger Foundation USA; ALFA-EC/ HELEN, European Union 6th Framework Program, Grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No. PIEF-GA-2008-220240, and UNESCO.

Published
2010
Full Text
View/download PDF

50. Measurement of the energy spectrum of cosmic rays above 10^18 eV using the Pierre Auger Observatory

Author

A. F. Barbosa, M. Ave, Jeffrey Brack, Olaf Scholten, T. Tarutina, Humberto Ibarguen Salazar, D. Nosek, R. E. Burton, M. Gómez Berisso, Ioana Codrina Maris, D. Allard, C. De Donato, A.M. van den Berg, Darko Veberič, R. C. Shellard, G. Marsella, S. Mueller, B. R. Becker, C. Lachaud, A. Dorofeev, B. Revenu, U. Fröhlich, G. Navarra, F. Schüssler, R. Bonino, H. Dembinski, Kreso Kadija, V. Verzi, J. R. Vázquez, S. L.C. Barroso, T. Yamamoto, Brian Fick, J. Stasielak, S. Coutu, M. Gold, C. Rivière, L. Villaseñor, I. Rodriguez-Cabo, J. Kleinfeller, C. Hojvat, C. Macolino, Jan Ebr, S. Grebe, Daniel Kuempel, Carlos Escobar, M. Nyklicek, A. Creusot, Ralph Engel, J. Ridky, A. Cordier, S. Maldera, D. Harari, N. T. Thao, D. Warner, J. Oehlschläger, H.O. Klages, R. Squartini, E. Colombo, Lisa M. Goggin, R. Bruijn, Richard Dallier, Hernan Wahlberg, T. Susa, A. Stutz, J. Schovancova, L. Nožka, Paulo J. S. Gonçalves, A. Gorgi, T. Paul, B. J. Whelan, Carola Dobrigkeit, D. Maurizio, R. F. Gamarra, I. Valiño, A. Krieger, L. Caramete, M. Hussain, Fabian Schmidt, P. Wahrlich, Subir Sarkar, Alexander Kusenko, Olivier Ravel, E. Menichetti, K.-H. Becker, C. Aramo, Alan Watson, Esteban Roulet, F. Suarez, Thomas Hebbeker, E. Santos, M.E. Ortiz, E. D. Fraenkel, H. J. Mathes, E. Moreno, A. Della Selva, Ernesto Arganda, C. E. Fracchiolla, Graciela B. Gelmini, J. Lozano Bahilo, Segev BenZvi, Denise Boncioli, K. Payet, Pham Ngoc Diep, G. De La Vega, P. Ristori, V. M. Olmos-Gilbaja, B. L. Lago, Martina Bohacova, Jörg R. Hörandel, German Ros, D. D'Urso, Corinne Berat, M. Giller, V. Pirronello, A. Śmiałkowski, Christopher Morris, J. Sorokin, Heino Falcke, Miroslav Hrabovský, Iuri Muniz Pepe, G. Matthiae, N. Palmieri, Jaime Alvarez-Muñiz, John G. Lee, E. Parizot, G. Medina-Tanco, J. Rodriguez Rojo, D. Schuster, M. Pimenta, A. Haungs, A. Bellétoile, J. L. Harton, C. E. Santo, M. L. Díaz Castro, G. Farrar, S. J. De Jong, I. Lhenry-Yvon, Ralf Ulrich, M. Ambrosio, G. Wieczorek, G. Salina, Olivier Deligny, Marco Iarlori, T. Schmidt, Enrique Zas, P. Mantsch, Antonio Bueno, Sergio Pastor, E. Petermann, Corbin Covault, D. García Gámez, Pierre Billoir, D. Thomas, Y. Petrov, A. Curutiu, S. Fliescher, R. Pelayo, A. Redondo, D.V. Semikoz, Luis A. Anchordoqui, Lino Miramonti, A. Petrolini, Warner A. Miller, F. A. S. Rezende, Markus Roth, Z. Szadkowski, W. Tkaczyk, S. Jiraskova, J. L. Kelley, C. Di Giulio, L. del Peral, S. Riggi, Kai Daumiller, Miroslav Pech, Vincent Marin, Fernando Contreras, A. Menshikov, M. Grigat, Maurice Stephan, Gualberto Avila, P. Bauleo, Dusan Mandat, A. Tamburro, B. Keilhauer, S. Gambetta, Dariusz Gora, J. Pȩkala, C. J.W.P. Timmermans, A. Tonachini, R. Piegaia, M. D. Rodríguez-Frías, Petr Travnicek, M. S. Sutherland, N. Pacheco, D. B. Tridapalli, J. Allen, A. Italiano, W. J. M. de Mello Junior, A. C. Fauth, S. J. Sciutto, R. Pesce, Angela V. Olinto, J. R. T. de Mello Neto, G. Cataldi, T. Karova, H. Lyberis, D. Tcherniakhovski, Rossella Caruso, Pietro Oliva, H. Schoorlemmer, A. Lucero, T. Rossler, Carla Bonifazi, Jose A. Bellido, R. M. de Almeida, G. La Rosa, L. Valore, J. Parrisius, Miguel Mostafá, J. Rodriguez Martino, J. Petrovic, S. R. Gozzini, T. Bergmann, M. Videla, M. Zavrtanik, N. Nierstenhoefer, A. G. Mariazzi, C. Robledo, J. A.J. Matthews, K. Louedec, Maria-Teresa Dova, M. Blanco, D. Nitz, Sofia Andringa, B. García, Mario Scuderi, Tobias Winchen, P. Lebrun, R. López, Karen S. Caballero-Mora, Xavier Bertou, R. Knapik, Azadeh Keivani, V. C. Holmes, M. Prouza, D. Lebrun, I. Dutan, Jaime Rosado, P. Abreu, M. Kaducak, S. Westerhoff, D. Ravignani, A. Chiavassa, D. H. Koang, Jose Chinellato, I. Zaw, Ivor Fleck, S. Dagoret-Campagne, K. Arisaka, F. Salamida, U. Giaccari, J. D. Swain, G. Rodriguez, M. Ludwig, A. Zepeda, Pedro Assis, J. W. Cronin, A. Etchegoyen, H. Schieler, D. Heck, K. B. Barber, L. R. Wiencke, Pedro Brogueira, S. Navas, B. M. Baughman, M. Melissas, G. Yuan, Matias Tueros, M. G. Winnick, Javier Tiffenberg, Petr Schovanek, A. Letessier-Selvon, Marcos Santander, F. Kuehn, R. Cester, D. Melo, R. A. Vázquez, Martin Erdmann, Antonella Castellina, M. Risse, E. Strazzeri, E. Grashorn, T. Antičić, M. Platino, B. Morales, A. Chou, A. Insolia, M. Kleifges, D. Zavrtanik, Lorenzo Cazon, A. Filipčič, O. Taşcǎu, Daniel Omar Badagnani, D. Pakk Selmi-Dei, Nataliia Borodai, M. Monasor, Roger W Clay, Mariangela Settimo, M. Palatka, F. Sarazin, P. W. Younk, K. Kulbartz, S. Petrera, Domenico Tegolo, C. Meurer, K. H. Kampert, Alexey Yushkov, T. Bäcker, Francisco J. Blanco, V. H. Ponce, F. Gomez Albarracin, V. Scherini, L. Perrone, Jiri Chudoba, A. Horneffer, P. Petrinca, R. Sato, H. Blümer, T. Suomijärvi, J. Pallotta, E. J. Quel, A. Schmidt, Paul Sommers, Piotr Homola, P. Facal San Luis, P. Gouffon, D. Kruppke-Hansen, Balázs Kégl, P. N. Dong, M. J. Cooper, A. D. Supanitsky, V. Halenka, F. Arqueros, P. Necesal, C. L. Williams, H. M. Spinka, B. Rouillé-D'Orfeuil, O. Krömer, J. D. Hague, Tonia M. Venters, F. Ionita, M. De Domenico, Marcio Aparecido Muller, E. Trovato, J. G. Gonzalez, J. Knapp, A. Lopez Agüera, Alberto Filevich, J. L. Navarro, G. Golup, Peter Hansen, N. Kunka, G. Tristram, Daniel Gonzalez, C. J. Todero Peixoto, F. Guarino, John Matthews, Peter Buchholz, Maria Rita Coluccia, H. Glass, Nicolás G. Busca, M. I. Micheletti, Marco Aglietta, G. Decerprit, Rúben Conceição, Pascal Lautridou, J. C. Diaz, Beatriz B. Siffert, P. Schiffer, Michael DuVernois, S. Parlati, S. Schulte, E. M. Santos, P. T. Nhung, A. Ferrero, A. Tapia, H. Gemmeke, M. Unger, Y. Guardincerri, H. Wilczyński, Bruce R. Dawson, B. Tome, P.O. Mazur, M. McEwen, M. C. Maccarone, G. Parente, H. R. Marquez Falcon, N. Scharf, E. Kemp, Serguei Vorobiov, A. Tamashiro, D. Monnier Ragaigne, S. Harmsma, C. Pfendner, A. C. Rovero, C. Bleve, J. Abraham, Vincenzo Rizi, D. Martello, M. Ziolkowski, Silvia Mollerach, O. Martínez Bravo, R. Mussa, J. J. Beatty, Alain Hervé, J. Coppens, N. Fazzini, Julien Aublin, J. F. Valdés Galicia, X. Garrido, I. De Mitri, M. A. Leigui de Oliveira, R. Tcaciuc, F. Schroeder, J. C. dos Anjos, L. Voyvodic, D. Garcia-Pinto, Onofrio A. Catalano, U. Cotti, F. Sánchez, Iván Sidelnik, H. Cook, R. D. Parsons, B. Wundheiler, L. Nellen, C. Morello, B. Wilczynska, K. D. de Vries, Matthias Balzer, Gregory R Snow, A. Lemiere, P. H. Kasper, M. S. A. B. Leão, W. Fulgione, O. Blanch-Bigas, Sasa Micanovic, Vasiliki Pavlidou, R. M. Kieckhafer, Juan Moreno, A. Criss, M. Pontz, J. Rautenberg, O. Wainberg, Peter L. Biermann, W. C. Brown, G. P. Guedes, Paolo Privitera, J. Chauvin, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, P. L. Ghia, Eun-Joo Ahn, Michael Urban, François Montanet, A. Segreto, Günter Sigl, Radomir Smida, C. Delle Fratte, A. Anzalone, V. de Souza, T. Huege, Hernán Gonzalo Asorey, A. Parra, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Guarino, Fausto, D'Urso, Domenico, Valore, Laura, M., Ambrosio, Aramo, Carla, The Pierre Auger, Collaboration, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO)-AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, Abraham, J., Abreu, P., Aglietta, M., Ahn, E., Allard, D., Allen, J., Alvarez-Muñiz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Antičić, T., Anzalone, A., Aramo, C., Arganda, E., Arisaka, K., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Balzer, M., Barber, K., Barbosa, A., Barroso, S., Baughman, B., Bauleo, P., Beatty, J., Becker, B., Becker, K., Bellétoile, A., Bellido, J., Benzvi, S., Berat, C., Bergmann, T., Bertou, X., Biermann, P., Billoir, P., Blanch-Bigas, O., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Busca, N., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Clay, R., Colombo, E., Coluccia, M., Conceição, R., Contreras, F., Cook, H., Cooper, M., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Daumiller, K., Dawson, B., de Almeida, R., De Domenico, M., De Donato, C., de Jong, S., De La Vega, G., de Mello Junior, W., de Mello Neto, J., De Mitri, I., de Souza, V., de Vries, K., Decerprit, G., del Peral, L., Deligny, O., Della Selva, A., Delle Fratte, C., Dembinski, H., Di Giulio, C., Diaz, J., Díaz Castro, M., Diep, P., Dobrigkeit, C., D'Olivo, J., Dong, P., Dorofeev, A., dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Duvernois, M., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Etchegoyen, A., Facal San Luis, P., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferrero, A., Fick, B., Filevich, A., Filipčič, A., Fleck, I., Fliescher, S., Fracchiolla, C., Fraenkel, E., Fröhlich, U., Fulgione, W., Gamarra, R., Gambetta, S., García, B., García Gámez, D., Garcia-Pinto, D., Garrido, X., Gelmini, G., Gemmeke, H., Ghia, P., Giaccari, U., Giller, M., Glass, H., Goggin, L., Gold, M., Golup, G., Gomez Albarracin, F., Gómez Berisso, M., Gonçalves, P., Gonzalez, D., Gonzalez, J., Góra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Hague, J., Halenka, V., Hansen, P., Harari, D., Harmsma, S., Harton, J., Haungs, A., Hebbeker, T., Heck, D., Herve, A., Hojvat, C., Holmes, V., Homola, P., Hörandel, J., Horneffer, A., Hrabovský, M., Huege, T., Hussain, M., Iarlori, M., Insolia, A., Ionita, F., Italiano, A., Jiraskova, S., Kadija, K., Kaducak, M., Kampert, K., Karova, T., Kasper, P., Kégl, B., Keilhauer, B., Keivani, A., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleifges, M., Kleinfeller, J., Knapik, R., Knapp, J., Koang, D., Krieger, A., Krömer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, K., Kunka, N., Kusenko, A., La Rosa, G., Lachaud, C., Lago, B., Lautridou, P., Leão, M., Lebrun, D., Lebrun, P., Lee, J., Leigui de Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Marin, V., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martínez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Mcewen, M., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Meurer, C., Mičanović, S., Micheletti, M., Miller, W., Miramonti, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, E., Moreno, J., Morris, C., Mostafá, M., Mueller, S., Muller, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Nhung, P., Nierstenhoefer, N., Nitz, D., Nosek, D., Nožka, L., Nyklicek, M., Oehlschläger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parlati, S., Parra, A., Parrisius, J., Parsons, R., Pastor, S., Paul, T., Pavlidou, V., Payet, K., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Piegaia, R., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Rautenberg, J., Ravel, O., Ravignani, D., Redondo, A., Revenu, B., Rezende, F., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rivière, C., Rizi, V., Robledo, C., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodríguez-Frías, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouillé-d'Orfeuil, B., Roulet, E., Rovero, A., Salamida, F., Salazar, H., Salina, G., Sánchez, F., Santander, M., Santo, C., Santos, E., Sarazin, F., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Schmidt, F., Schmidt, T., Scholten, O., Schoorlemmer, H., Schovancova, J., Schovánek, P., Schroeder, F., Schulte, S., Schüssler, F., Schuster, D., Sciutto, S., Scuderi, M., Segreto, A., Semikoz, D., Settimo, M., Shellard, R., Sidelnik, I., Siffert, B., Sigl, G., Śmiałkowski, A., Šmída, R., Snow, G., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Stasielak, J., Stephan, M., Strazzeri, E., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A., Šuša, T., Sutherland, M., Swain, J., Szadkowski, Z., Tamashiro, A., Tamburro, A., Tapia, A., Tarutina, T., Taşcǎu, O., Tcaciuc, R., Tcherniakhovski, D., Tegolo, D., Thao, N., Thomas, D., Tiffenberg, J., Timmermans, C., Tkaczyk, W., Todero Peixoto, C., Tomé, B., Tonachini, A., Travnicek, P., Tridapalli, D., Tristram, G., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J., Valiño, I., Valore, L., van den Berg, A., Vázquez, J., Vázquez, R., Veberič, D., Venters, T., Verzi, V., Videla, M., Villaseñor, L., Vorobiov, S., Voyvodic, L., Wahlberg, H., Wahrlich, P., Wainberg, O., Warner, D., Watson, A., Westerhoff, S., Whelan, B., Wieczorek, G., Wiencke, L., Wilczyńska, B., Wilczyński, H., Williams, C., Winchen, T., Winnick, M., Wundheiler, B., Yamamoto, T., Younk, P., Yuan, G., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Ziolkowski, M., KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, J., Abraham, P., Abreu, M., Aglietta, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, J., ALVAREZ MUNIZ, L., Anchordoqui, S., Andringa, T., Anticic, A., Anzalone, C., Aramo, E., Arganda, K., Arisaka, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, T., Backer, D., Badagnani, M., Balzer, K. B., Barber, A. F., Barbosa, S. L. C., Barroso, B., Baughman, P., Bauleo, J., Beatty, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, X., Bertou, P. L., Biermann, P., Billoir, O., BLANCH BIGAS, F., Blanco, M., Blanco, C., Bleve, H., Blumer, M., Bohacova, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N., Busca, K. S., CABALLERO MORA, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, R. W., Clay, E., Colombo, M. R., Coluccia, R., Conceicao, F., Contrera, H., Cook, M., Cooper, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., DAGORET CAMPAGNE, R., Dallier, K., Daumiller, B. R., Dawson, R. M., De, Almeida, M., Dedomenico, C., Dedonato, S. J., Dejong, G., Delavega, W. J. M., Demellojunior, J., Demelloneto, DE MITRI, Ivan, V., Desouzam, K. D., Devrie, G., Decerprit, L., Delperal, O., Deligny, A., Dellaselva, C., Dellefratte, H., Dembinski, C., Digiulio, J. C., Diaz, M., Castro, P. N., Diep, C., Dobrigkeit, J. C., Dolivo, P. N., Dong, A., Dorofeev, J. C., Dosanjo, M., Dova, D., Durso, I., Dutan, M. A., Duvernoi, J., Ebr, R., Engel, M., Erdmann, C., O, A., Etchegoyen, P., Facalsanlui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, U., Frohlich, W., Fulgione, R. F., Gamarra, S., Gambetta, B., Garcia, D., Gamez, D., GARCIA PINTO, X., Garrido, G., Gelmini, H., Gemmekeag, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, L., Goggin, M. S., Gold, G., Golup, F., Gomezalbarracin, M., Berisso, P., GONC ALVES, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, M., Grigat, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, V. C., Holme, P., Homola, J. R., Horandel, A., Horneffer, M., Hrabovsky, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, K., Kadija, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Kegl, B., Keilhauer, A., Keivani, J., Kelley, E., Kempo, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Krieger, O., Kromer, D., KRUPPKE HANSEN, F., Kuehn, D., Kuempel, K., Kulbartz, N., Kunka, A., Kusenko, G., Larosa, C., Lachaud, B., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguideoliveira, A., Lemiere, A., LETESSIER SELVON, I., LHENRY YVON, R., Lopez, A., Lopezaguera, K., Louedec, J., Lozanobahilo, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari, H., Falcon, Marsella, Giovanni, Martello, Daniele, O., Bravo, H. J., Mathe, J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewenbp, G., MEDINA TANCO, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, C., Meurer, S., Micanovic, M. I., Micheletti, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnierragaigne, F., Montanet, B., Morale, C., Morello, E., Ba, J. C., Moreno, C., Morri, M., Mostafa, S., Mueller, M., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, P., Nhung, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V., Br, M., Ortiz, N., Pacheco, D., PAKKSELMI DEI, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, S., Parlati, A., Parra, J., Parrisiu, R., Parson, S., Pastor, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, R., Pelayo, I., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, R., Piegaia, T., Pierog, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, B., Revenu, F. A. S., Rezende, J., Ridky, S., Riggi, M., Risse, P., Ristori, C., Riviere, V., Rizi, C., Robledo, G., Rodriguez, J., Rodriguezmartino, J., Rodriguezrojo, I., RODRIGUEZ CABO, M. D., RODRIGUEZ FRIAS, G., Ro, J., Rosado, T., Rossler, M., Roth, B., ROUILLE DORFEUIL, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, M., Settimo, R., Shellard, I., Sidelnik, B. B., Siffert, G., Sigl, A., Smiakowski, R., Smida, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, J., Stasielak, M., Stephan, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, T., Susa, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, A., Tapia, T., Tarutina, O., TAS CAU, R., Tcaciuc, D., Tcherniakhovski, D., Tegolo, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Toderopeixoto, B., Tome, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J., Galicia, I., Valino, L., Valore, A. M., Vandenberg, J. R., Vazquez, R. A., Vazquez, D., Veberic, T., Venter, V., Verzi, M., Videla, L., Villasenor, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, A. A., Watson, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., William, T., Winchen, M. G., Winnick, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, and M., Ziolkowski

Subjects
Nuclear and High Energy Physics, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Radiación Cósmica, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, energy spectrum, Flux, FOS: Physical sciences, Cosmic ray, Astrophysics, Electron, SURFACE DETECTOR, UPPER LIMIT, ENERGIA, PHOTON FRACTION, 01 natural sciences, Spectral line, Auger, Nuclear physics, cosmic rays, Observatory, SHOWERS, 0103 physical sciences, High-Energy Cosmic Ray, 010306 general physics, Cosmic rays, Ciencias Exactas, Physics, Pierre Auger Observatory, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Spectral density, Física, ELECTRONS, 3. Good health, Energy spectrum, SIMULATION, Experimental High Energy Physics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Fluorescencia, ARRAY, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, SYSTEM
Abstract

We report a measurement of the flux of cosmic rays with unprecedented precision and Statistics using the Pierre Auger Observatory Based on fluorescence observations in coincidence with at least one Surface detector we derive a spectrum for energies above 10(18) eV We also update the previously published energy spectrum obtained with the surface detector array The two spectra are combined addressing the systematic uncertainties and, in particular. the influence of the energy resolution on the spectral shape The spectrum can be described by a broken power law E-gamma with index gamma = 3 3 below the ankle which is measured at log(10)(E-ankle/eV) = 18 6 Above the ankle the spectrum is described by a power law with index 2 6 followed by a flux suppression, above about log(10)(E/eV) = 19 5, detected with high statistical significance., The successful installation and commissioning of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargüe. We are very grateful to the following agencies and organizations for financial support: Comisión Nacional de Energía Atómica, Fundación Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundaçao de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundaçao de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP), Ministério de Ciência e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB300100801 and KJB100100904, MSMT-CR LA08016, LC527, 1M06002, and MSM0021620859, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Régional Ile-de-France, Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS), Département Sciences de l’Univers (SDU-INSU/CNRS), France; Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden- Württemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium für Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium für Wissenschaft, Forschung und Kunst, Baden-Württemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell’Istruzione,dell’Università e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. 1 P03 D 014 30, N202 090 31/0623, and PAP/218/2006, Poland; Fundaçao para a Ciência e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejería de Educación de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovación, Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract No. DE-AC02-07CH11359, National Science Foundation, Grant No. 0450696, The Grainger Foundation USA; ALFA-EC / HELEN, European Union 6th Framework Program, Grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No. PIEF-GA-2008-220240, and UNESCO.

Published
2010
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results