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337 results on '"Brusa, R. S."'

51. The AEgIS experiment: towards antimatter gravity measurements

Author

Khalidova, O, primary, Aghion, S, additional, Amsler, C, additional, Antonello, M, additional, Belov, A, additional, Bonomi, G, additional, Brusa, R S, additional, Caccia, M, additional, Camper, A, additional, Caravita, R, additional, Castelli, F, additional, Cerchiari, G, additional, Comparat, D, additional, Consolati, G, additional, Demetrio, A, additional, Noto, L D, additional, Doser, M, additional, Evans, C, additional, Fani, M, additional, Ferragut, R, additional, Fesel, J, additional, Fontana, A, additional, Gerber, S, additional, Giammarchi, M, additional, Gligorova, A, additional, Guatieri, F, additional, Hackstock, P, additional, Haider, S, additional, Hinterberger, A, additional, Holmestad, H, additional, Kellerbauer, A, additional, Krasnický, D, additional, Lagomarsino, V, additional, Lansonneur, P, additional, Lebrun, P, additional, Malbrunot, C, additional, Mariazzi, S, additional, Marton, J, additional, Matveev, V, additional, Müller, S, additional, Nebbia, G, additional, Nedelec, P, additional, Oberthaler, M, additional, Pagano, D, additional, Penasa, L, additional, Petracek, V, additional, Prelz, F, additional, Prevedelli, M, additional, Rienaecker, B, additional, Robert, J, additional, Røhne, O, additional, Rotondi, Alberto, additional, Sandaker, H, additional, Santoro, R, additional, Smestad, L, additional, Sorrentino, F, additional, Testera, G, additional, Tietje, I, additional, Vujanovic, M, additional, Widmann, E, additional, Yzombard, P, additional, Zimmer, C, additional, Zmeskal, J, additional, and Zurlo, N, additional

Published
2019
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52. Positronium Rydberg excitation diagnostic in a 1T cryogenic environment

Author

Caravita, R., primary, Mariazzi, S., additional, Aghion, S., additional, Amsler, C., additional, Antonello, M., additional, Belov, A., additional, Bonomi, G., additional, Brusa, R. S., additional, Caccia, M., additional, Camper, A., additional, Castelli, F., additional, Cerchiari, G., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Di Noto, L., additional, Doser, M., additional, Evans, C., additional, Fanì, M., additional, Ferragut, R., additional, Fesel, J., additional, Fontana, A., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Guatieri, F., additional, Hackstock, P., additional, Haider, S., additional, Hinterberger, A., additional, Holmestad, H., additional, Kellerbauer, A., additional, Khalidova, O., additional, Krasnický, D., additional, Lagomarsino, V., additional, Lansonneur, P., additional, Lebrun, P., additional, Malbrunot, C., additional, Marton, J., additional, Matveev, V., additional, Müller, S. R., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Pagano, D., additional, Penasa, L., additional, Petracek, V., additional, Prelz, F., additional, Prevedelli, M., additional, Rienaecker, B., additional, Robert, J., additional, Røhne, O. M., additional, Rotondi, A., additional, Sandaker, H., additional, Santoro, R., additional, Smestad, L., additional, Sorrentino, F., additional, Testera, G., additional, Tietje, I. C., additional, Vujanovic, M., additional, Widmann, E., additional, Yzombard, P., additional, Zimmer, C., additional, Zmeskal, J., additional, and Zurlo, N., additional

Published
2019
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54. The Weak Equivalence Principle With Antimatter: The AEgIS Experiment At CERN

Author

Pagano, D., Amsler, C., Ariga, T., Bonomi, G., Bräunig, P., Brusa, R. S., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Andrea Fontana, Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Kellerbauer, A., Krasnický, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Rienaecker, B., Røhne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Smestad, L., Sorrentino, F., Strojek, I. M., Testera, G., Tietje, I. C., Vamosi, S., Widmann, E., Yzombard, P., Zmeskal, J., Zurlo, N., Pagano, D., Amsler, C., Ariga, T., Bonomi, G., Braunig, P., Brusa, R. S., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Rienaecker, B., Rohne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Smestad, L., Sorrentino, F., Strojek, I. M., Testera, G., Tietje, I. C., Vamosi, S., Widmann, E., Yzombard, P., Zmeskal, J., and Zurlo, N.

Subjects
Physics::General Physics, Astrophysics and Astronomy, Physics::Atomic and Molecular Clusters, Physics::Accelerator Physics, Physics::Atomic Physics, Particle Physics - Experiment
Abstract

The AEgIS experiment at CERN’s Antiproton Decelerator (AD) aims at performing a direct measurement of the gravitational force on antimatter to probe the Weak Equivalence Principle of General Relativity with antimatter. The idea is to measure the vertical displacement of a cold antihydrogen beam, due to the gravitational force, by using a moiré deflectometer. Antihydrogen will be formed through the reaction of charge exchange between cold antiprotons and Rydberg positronium. An overview of the physics goals, experimental setup and preliminary results is presented.

Published
2016

55. Towards a gravity measurement on cold antimatter atoms

Author

Caravita, R., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Bonomi, G., Braünig, P., Bremer, J., Brusa, R. S., Cabaret, L., Caccia, M., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Forslund, O. K., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Jernelv, I. L., Jordan, E., Kaltenbacher, T., Kellerbauer, A., Kimura, M., Koetting, T., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Lehner, S., Liberadzka, J., Malbrunot, C., Mariazzi, S., Marx, L., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Resch, L., Rienäcker, B., Røhne, O. M., Rosenberger, S., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Sorrentino, F., Spacek, M., Storey, J., Strojek, I. M., Testera, G., Tietje, I., Vamosi, S., Widmann, E., Yzombard, P., Zavatarelli, J. Zmeskal, S. Zavatarelli, J. Zmeskal, SCAMPOLI, PAOLA, Caravita, R., Aghion, S., Amsler, C., Ariga, A., Ariga, T., Bonomi, G., Braünig, P., Bremer, J., Brusa, R. S., Cabaret, L., Caccia, M., Castelli, F., Cerchiari, G., Chlouba, K., Cialdi, S., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Forslund, O. K., Gerber, S., Giammarchi, M., Gligorova, A., Gninenko, S., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Jernelv, I. L., Jordan, E., Kaltenbacher, T., Kellerbauer, A., Kimura, M., Koetting, T., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Lehner, S., Liberadzka, J., Malbrunot, C., Mariazzi, S., Marx, L., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Resch, L., Rienäcker, B., Røhne, O. M., Rosenberger, S., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, Paola, Sorrentino, F., Spacek, M., Storey, J., Strojek, I. M., Testera, G., Tietje, I., Vamosi, S., Widmann, E., Yzombard, P., Zavatarelli, J. Zmeskal, S. Zavatarelli, and J., Zmeskal

Published
2016

56. Antimatter Gravity Measurements with Cold Antihydrogen: the AEgIS Experiment

Author

Doser, M., Amsler, C., Ariga, T., Bonomi, G., Braunig, P., Brusa, R. S., Cabaret, L., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Ereditato, A., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Holmestad, H., Huse, T., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Lansonneur, P., Lebrun, P., Malbrunot, C., Mariazzi, S., Matveev, V., Mazzotta, Z., Nebbia, G., Nedelec, P., Oberthaler, M., Pacifico, N., Pagano, D., Penasa, L., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Ravelli, L., Rienaecker, B., Røhne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Scampoli, P., Smestad, L., Sorrentino, F., Strojek, I. M., Testera, G., Tietje, I. C., Vamosi, S., Widmann, E., Yzombard, P., Zmeskal, J., and Zurlo, N.

Subjects
Nuclear physics, Physics, Gravitation, Antimatter, Gravity (chemistry), CPT Symetry, Antimatter, Gravity, CPT Symetry, Gravity, Equivalence principle, Antihydrogen, Charge exchange
Published
2017
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57. AEgIS Experiment: Status & Outlook

Author

Lansonneur, P., Aghion, S., Amsler, C., Bonomi, G., Brusa, R. S., Caccia, M., Caravita, R., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Evans, C., Ferragut, R., Fesel, J., Fontana, A., Gerber, S., Giammarchi, M., Gligorova, A., Guatieri, F., Haider, S., Hinterberger, A., Holmestad, H., Kellerbauer, A., Khalidova, O., Krasnicky, D., Lagomarsino, V., Lebrun, P., Malbrunot, C., Mariazzi, S., Marton, J., Matveev, V., Mazzotta, Z., Müller, S. R., Nebbia, G., Nedelec, P., Oberthaler, M., Pacico, N., Pagano, D., Penasa, L., Petracek, V., Francesco Prelz, Prevedelli, M., Ravelli, L., Rienaecker, B., Robert, J., Rhøne, O. M., Rotondi, A., Sacerdoti, M., Sandaker, H., Santoro, R., Simon, M., Smestad, L., Sorrentino, F., Testera, G., Tietje, I. C., Widmann, E., Yzombard, P., Zimmer, C., Zmeska, J., Zurlo, N., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Aimé Cotton (LAC), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon ( IPNL ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Aimé Cotton ( LAC ), École normale supérieure - Cachan ( ENS Cachan ) -Université Paris-Sud - Paris 11 ( UP11 ) -Centre National de la Recherche Scientifique ( CNRS ), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan)

Subjects
Physics::General Physics, experimental methods, CERN Lab, General Relativity and Cosmology, interferometer, antihydrogen: beam, [ PHYS.GRQC ] Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], gravitation, positron: capture, anti-p: capture, antimatter, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], Physics::Atomic and Molecular Clusters, spectrometer, Physics::Atomic Physics, positronium: excited state
Abstract

International audience; The AEGIS experiment 1 (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is planned to perform the first measurement of the gravitational acceleration on antimatter by observing the free fall of antihydrogen atoms. By combining techniques based on recent developments in the production of positronium and its laser excitation to Rydberg states, such a study seems indeed to be feasible for neutral antimatter. We present here some of the experimental techniques involved in the experiment as well as the status of the detector test envisioned for the gravity measurement.

Published
2017

58. Open Volumes Structure and Molecular Transport in Biopolymer Nanocomposites.

Author

Checchetto, R., Penasa, L., Dickmann, M., Egger, W., Tarter, S., and Brusa, R. S.

Subjects
MOLECULAR structure, MOLECULAR volume, POSITRON annihilation, LACTIC acid, GRAPHENE oxide, CELLULOSE, BIOPOLYMERS
Abstract

We discuss gas barrier mechanisms in biopolymer nanocomposite in which fillers of different natures and concentrations are added. The kinetics of gas transport is studied by gas phase permeation techniques and free volumes are analyzed by positron annihilation lifetime spectroscopy. Gas barrier properties of two biopolymer nanocomposite films are presented in relation to their free volume. The first film is poly(3-hydroxybutyrate-co-3- hydroxyhexanoate) (PHBH) containing 0.25 wt% of graphene oxide (GO) filler nanoparticles. The second film is poly(lactic acid) (PLA) in which cellulose nanofibrils have been dispersed with content from 4.1 to 12.4 vol.%. It is shown that in both biopolymer films the filler addition improves their gas barrier properties but with different mechanism. [ABSTRACT FROM AUTHOR]

Published
2020
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59. Simulating Positron to Positronium Conversion in Nanostructured Materials.

Author

GUATIERI, F., MARIAZZI, S., and BRUSA, R. S.

Subjects
NANOSTRUCTURED materials, POSITRONIUM, POSITRONS
Abstract

Silicon-based nanochanneled converters for the production of cold positronium (Ps) have been introduced in 2010 and since then provided a reliable source of cold Ps to a variety of experiments. With the goal of advancing the optimization of such converters, we have formulated a classical model to describe the production and cooling of Ps in nanochanneled converters. The simulation of this process poses several challenges due to the complexity of the geometry in which it takes place. We will here briefly give an overview of our model and discuss several simplifications of the simulation process which, without altering significantly the simulation results, reduce the computational costs enough to allow for systematic scans of the nanochanneled converter construction parameter space. [ABSTRACT FROM AUTHOR]

Published
2020
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60. Hybrid Imaging and Timing Ps Laser Excitation Diagnostics for Pulsed Antihydrogen Production.

Author

CARAVITA, R., ANTONELLO, M., BELOV, A., BONOMI, G., BRUSA, R. S., CACCIA, M., CAMPER, A., CASTELLI, F., COMPARAT, D., CONSOLATI, G., DEMETRIO, A., DI NOTO, L., DOSER, M., FANÌ, M., FERRAGUT, R., GERBER, S., GIAMMARCHI, M., GLIGOROVA, A., GLÖGGLER, L. T., and GUATIERI, F.

Subjects
POSITRONIUM, ANTIHYDROGEN, ANTIPROTONS, MICROCHANNEL plates, HIGH resolution imaging, SCINTILLATION counters, LASERS
Abstract

In this work we present a hybrid detection method providing simultaneous imaging and timing information suitable for fully monitoring positronium (Ps) formation, its laser excitation, and its spatial propagation for the first trials of pulsed antihydrogen (H) production through a charge-exchange reaction with trapped antiprotons (p). This combined method, based on the synchronous acquisition of an EJ-200 scintillation detector and a microchannel plate (MCP) detector with a dual readout (phosphor screen image and electrical pick-up signal), allows all relevant events in the experiment to be accurately determined in time while allowing high resolution images of e+ from Ps laser photodissociations to be acquired. The timing calibration process of the two detectors discussed in details as well as the future perspectives opened by this method. [ABSTRACT FROM AUTHOR]

Published
2020
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61. Production of long-lived positronium states via laser excitation to 3³P level.

Author

Mariazzi, S., Caravita, R., Aghion, S., Amsler, C., Antonello, M., Belov, A., Bonomi, G., Brusa, R. S., Caccia, M., Camper, A., Castelli, F., Cerchiari, G., Comparat, D., Consolati, G., Demetrio, A., Di Noto, L., Doser, M., Evans, C., Fanì, M., and Ferragut, R.

Subjects
POSITRONIUM, RYDBERG states, LASERS, INTERFEROMETRY
Abstract

The 3³P state of positronium is an intermediate level suitable for producing long-lived positronium states. On one hand, it can be used in a two-step laser excitation scheme from the ground state to Rydberg levels. On the other hand, excitation of positronium to 3³P level is a simple pathway for producing metastable 2³S positronium atoms by spontaneous radiactive decay. In this work, experiments showing the production of such long-lived levels, using the 3³P state as intermediate state, are presented. The characteristics of the two long-lived levels, in view of experiments of deflectometry/interferometry with positronium, are discussed. [ABSTRACT FROM AUTHOR]

Published
2019
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62. Nanolayers on nanochannels for hydrogen purification.

Author

Checchetto, R., Patel, N., Miotello, A., and Brusa, R. S.

Subjects
NANOSTRUCTURES, HYDROGEN, DISSOCIATION (Chemistry), ALUMINUM oxide, SILICA, HYDROGEN economy, ARTIFICIAL membranes
Abstract

The purification of hydrogen rich gases is of great technological importance in the “hydrogen economy” and is achieved by selective membranes made of organic or inorganic materials. In this field, a strong challenge is the synthesis of defect-free ultrathin Pd-based selective membranes. We present a study on the synthesis and performances of a bilayer structure consisting of 100 nm nanoporous silica coated with a 150 nm Pd–Ag layer. An alumina disk having periodic microsieves structure was used as support for the bilayer. The hydrogen transport through this nanocomposite membrane is controlled by the dissociation of molecular hydrogen at the surface of the Pd–Ag functional layer. When operating at 573 K, the membrane exhibits high H2/N2 selectivity (a factor as high as 600–900), high H2 permeance (∼10-6 mol m-2 s-1 Pa-1), and operative stability on long-term operations. [ABSTRACT FROM AUTHOR]

Published
2009
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63. Structural properties of reactively sputtered W–Si–N thin films.

Author

Vomiero, A., Boscolo Marchi, E., Quaranta, A., Della Mea, G., Brusa, R. S., Mariotto, G., Felisari, L., Frabboni, S., Tonini, R., Ottaviani, G., Mattei, G., Scandurra, A., and Puglisi, O.

Subjects
SPUTTERING (Physics), TUNGSTEN, SILICON, NITROGEN, THIN films, SILICON nitride, TERNARY phase diagrams
Abstract

Tungsten-silicon-nitrogen, W–Si–N, ternary thin films have been reactively sputter deposited from W5Si3 and WSi2 targets using several nitrogen partial pressures. The films have been thermal annealed in the 600–1000 °C temperature range and a wide region of the W–Si–N ternary phase diagram has been explored by changing the N2/Ar ratio during the deposition. Multitechnique approach was adopted for the analysis of the samples. Composition has been determined via ion beam analysis; chemical states were investigated using x-ray photoelectron spectroscopy (XPS); crystalline structure was studied using transmission electron microscopy (TEM) and x-ray diffraction (XRD) and surface morphology by scanning electron microscope. The films deposited in pure argon atmosphere are tungsten rich and approach the target contents as N2/Ar ratio is varied during deposition. Tungsten enrichment in the films is caused by resputtering of silicon which can be inhibited by the formation of silicon nitride, allowing films with Si/W ratio closer to the target compositions. The higher capability to form nitrides with silicon than with tungsten favors enhancement of nitrogen content in samples deposited from the silicon rich target (WSi2). The samples with excess nitrogen content have shown losses of this element after thermal treatment. XPS measurements show a break of W–N bonds caused by thermal instability of tungsten nitrides. TEM and XRD revealed the segregation of tungsten in form of metallic or silicide nanoclusters in samples with low nitrogen content (W58Si21N21 and W24Si42N34). High amounts of nitrogen were revealed to be highly effective in inhibiting metallic cluster coalescence. Measurements of electrical resistivity of as deposited films were performed using four point probe technique. They were found to lie in the range between 0.4 and 79 mΩ cm depending on sample composition. [ABSTRACT FROM AUTHOR]

Published
2007
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64. Deuterium storage in nanocrystalline magnesium thin films.

Author

Checchetto, R., Bazzanella, N., Miotella, A., Brusa, R. S., Zecca, A., and Mengucci, A.

Subjects
DEUTERIUM, MAGNESIUM, THIN films, ANNEALING of metals, CHEMICAL decomposition, POSITRON annihilation
Abstract

Nanocrystalline magnesium deuteride thin films with the β-MgD[sub 2] structure were prepared by vacuum evaporation of hexagonal magnesium (h-Mg) samples and thermal annealing in 0.15 MPa D[sub 2] atmosphere at 373 K. Thermal desorption spectroscopy analysis indicated that the rate-limiting step in the deuterium desorption was given by the thermal decomposition of the deuteride phase. The activation energy Δg of the β-MgD[sub 2]→h-Mg+D[sub 2] reaction scaled from 1.13±0.03 eV in 650-nm-thick films to 1.01±0.02 eV in 75-nm-thick films most likely as consequence of different stress and defect level. Positron annihilation spectroscopy analysis of the thin-film samples submitted to deuterium absorption and desorption cycles reveal the presence of a high concentration of void-like defects in the h-Mg layers after the very first decomposition of the β-MgD[sub 2] phase, the presence of these open volume defects reduces the D[sub 2] absorption capacity of the h-Mg thin film. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2004
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65. Structural evolution in Ar[sup +] implanted Si-rich silicon oxide.

Author

Brusa, R. S., Karwasz, G. P., Mariotto, G., Zecca, A., Ferragut, R., Folegati, P., Dupasquier, A., Ottaviani, G., and Tonini, R.

Subjects
*SILICON oxide films, *CHEMICAL vapor deposition, *ION bombardment, *STOICHIOMETRY, *INFRARED spectroscopy
Abstract

Silicon-rich silicon oxide films were deposited by plasma-enhanced chemical vapor deposition. Energy was released into the film by ion bombardment, with the aim of promoting formation of Si nanoclusters and reordering the oxide matrix. The effect of the initial stoichiometry, as well as the evolution of the oxide films due to the ion bombardment and to subsequent thermal treatments, has been studied by depth-resolved positron annihilation Doppler spectroscopy, Raman scattering and Fourier transform infrared spectroscopy. As-deposited films were found to contain an open volume fraction in the form of subnanometric cavities that are positively correlated with oxygen deficiency. No Si aggregates were observed. The ion bombardment was found to promote the formation of amorphous Si nanoclusters, together with a reduction of the open volume in the matrix and a substantial release of hydrogen. It also leaves electrically active sites in the oxide and produces gas-filled vacancy defects in the substrate, with the concentrations depending on the implantation temperature. Thermal treatment at 500 °C removes charge defects in the oxide, but vacancy defects are not completely annealed even at 1100 °C. In one case, heating at 1100 °C produced cavities of about 0.6 nm in the oxide. Transformation of Si nanoclusters into nanocrystals is observed to occur from 800 °C. © 2003 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2003
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66. The DAQ system for the AE$\bar g$IS experiment

Author

Prelz, F, Aghion, S, Amsler, C, Ariga, T, Bonomi, G, Brusa, R S, Caccia, M, Caravita, R, Castelli, F, Cerchiari, G, Comparat, D, Consolati, G, Demetrio, A, Di Noto, L, Doser, M, Ereditato, A, Evans, C, Ferragut, R, Fesel, J, Fontana, A, Gerber, S, Giammarchi, M, Gligorova, A, Guatieri, F, Haider, S, Hinterberger, A, Holmestad, H, Kellerbauer, A, Krasnický, D, Lagomarsino, V, Lansonneur, P, Lebrun, P, Malbrunot, C, Mariazzi, S, Matveev, V, Mazzotta, Z, Müller, S R, Nebbia, G, Nedelec, P, Oberthaler, M, Pacifico, N, Pagano, D, Penasa, L, Petracek, V, Prevedelli, M, Ravelli, L, Rienaecker, B, Robert, J, Røhne, O M, Rotondi, A, Sacerdoti, M, Sandaker, H, Santoro, R, Scampoli, P, Simon, M, Smestad, L, Sorrentino, F, Testera, G, Tietje, I C, Widmann, E, Yzombard, P, Zimmer, C, Zmeskal, J, Zurlo, N, Laboratoire Aimé Cotton (LAC), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
sociology, monitoring, Automatic Keywords, CERN Lab, data acquisition, [INFO]Computer Science [cs], CPT, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, programming, Computing and Computers
Abstract

International audience; In the sociology of small- to mid-sized (O(100) collaborators) experiments the issue of data collection and storage is sometimes felt as a residual problem for which well-established solutions are known. Still, the DAQ system can be one of the few forces that drive towards the integration of otherwise loosely coupled detector systems. As such it may be hard to complete with off-the-shelf components only. LabVIEW and ROOT are the (only) two software systems that were assumed to be familiar enough to all collaborators of the AEḡIS (AD6) experiment at CERN: working out of the GXML representation of LabVIEW Data types, a semantically equivalent representation as ROOT TTrees was developed for permanent storage and analysis. All data in the experiment is cast into this common format and can be produced and consumed on both systems and transferred over TCP and/or multicast over UDP for immediate sharing over the experiment LAN. We describe the setup that has been able to cater to all run data logging and long term monitoring needs of the AEḡIS experiment so far.

Published
2016
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67. Efficient Rydberg positronium laser excitation for antihydrogen production in a magnetic field

Author

Giammarchi, M. G., Belov, A. S., Bonomi, G., Boscolo, I., Brambilla, N., Brusa, R. S., Byakov, V. M., Cabaret, L., Canali, C., Carraro, C., Castelli, F., Cialdi, S., De Combarieu, M., Comparat, D., Consolati, Giovanni, Djourelov, N., Doser, M., Drobychev, G., Dupasquier, Alfredo, Fabris, F., Ferragut, RAFAEL OMAR, Ferrari, G., Fischer, A., Fontana, A., Forget, P., Formaro, L., Lunardon, M., Gervasini, A., Gninenko, S. N., Gribakin, G., Heyne, R., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Manuzio, G., Mariazzi, S., Matveev, V. A., Moretto, S., Morhard, C., Nebbia, G., Nedelec, P., Oberthaler, M. K., Pari, P., Petracek, V., Prevedelli, M., Al qaradawi, I. Y., Quasso, Fiorenza, Rohne, O., Pesente, S., Rotondi, A., Stapnes, S., Sillou, D., Stepanov, S. V., Stroke, H. H., Testera, G., Tino, G. M., Vairo, A., Viesti, G., Villa, F., Walters, H., Warring, U., Zavatarelli, S., Zenoni, A., and Zvezhinskij, D. S.

Subjects
Physics, Nuclear and High Energy Physics, education.field_of_study, Population, Condensed Matter Physics, Laser, Atomic and Molecular Physics, and Optics, Positronium, law.invention, symbols.namesake, law, Excited state, Atom, Rydberg formula, symbols, Physics::Atomic Physics, Physical and Theoretical Chemistry, Atomic physics, Antihydrogen, education, Excitation
Abstract

Antihydrogen production by charge exchange reaction between positronium (Ps) and antiprotons requires an efficient excitation of Ps atoms up to high-n levels (Rydberg levels). We propose a two-step laser light excitation, the first from ground to n = 3 and the second from this level to a Rydberg level n > 15. In this study it is assumed that a Ps cloud is produced by positrons hitting a target converter located in a Penning-Malmberg trap within a uniform ~ 1 T magnetic field. We model the optical transition structure by taking into account Doppler and motional Stark effects. The predicted efficiency for population deposition in high n states is of ~30%.

Published
2009
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68. Overview of Recent Work on Laser Excitation of Positronium for the Formation of Antihydrogen

Author

Yzombard, P., primary, Amsler, C., additional, Ariga, T., additional, Bonomi, G., additional, Bräunig, P., additional, Brusa, R. S., additional, Cabaret, L., additional, Caccia, M., additional, Caravita, R., additional, Castelli, F., additional, Cerchiari, G., additional, Comparat, D., additional, Consolati, G., additional, Demetrio, A., additional, Di Noto, L., additional, Doser, M., additional, Ereditato, A., additional, Evans, C., additional, Ferragut, R., additional, Fesel, J., additional, Fontana, A., additional, Gerber, S., additional, Giammarchi, M., additional, Gligorova, A., additional, Guatieri, F., additional, Haider, S., additional, Holmestad, H., additional, Huse, T., additional, Kellerbauer, A., additional, Krasnický, D., additional, Lagomarsino, V., additional, Lansonneur, P., additional, Lebrun, P., additional, Malbrunot, C., additional, Mariazzi, S., additional, Matveev, V., additional, Mazzotta, Z., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Pacifico, N., additional, Pagano, D., additional, Penasa, L., additional, Petracek, V., additional, Pistillo, C., additional, Prelz, F., additional, Prevedelli, M., additional, Ravelli, L., additional, Rienaecker, B., additional, Røne, O. M., additional, Rotondi, A., additional, Sacerdoti, M., additional, Sandaker, H., additional, Santoro, R., additional, Scampoli, P., additional, Smestad, L., additional, Sorrentino, F., additional, Strojek, I. M., additional, Testera, G., additional, Tietje, I. C., additional, Vamosi, S., additional, Widmann, E., additional, Zmeskal, J., additional, and Zurlo, N., additional

Published
2017
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69. The DAQ system for the AEḡIS experiment

Author

Prelz, F, primary, Aghion, S, additional, Amsler, C, additional, Ariga, T, additional, Bonomi, G, additional, Brusa, R S, additional, Caccia, M, additional, Caravita, R, additional, Castelli, F, additional, Cerchiari, G, additional, Comparat, D, additional, Consolati, G, additional, Demetrio, A, additional, Di Noto, L, additional, Doser, M, additional, Ereditato, A, additional, Evans, C, additional, Ferragut, R, additional, Fesel, J, additional, Fontana, A, additional, Gerber, S, additional, Giammarchi, M, additional, Gligorova, A, additional, Guatieri, F, additional, Haider, S, additional, Hinterberger, A, additional, Holmestad, H, additional, Kellerbauer, A, additional, Krasnický, D, additional, Lagomarsino, V, additional, Lansonneur, P, additional, Lebrun, P, additional, Malbrunot, C, additional, Mariazzi, S, additional, Matveev, V, additional, Mazzotta, Z, additional, Müller, S R, additional, Nebbia, G, additional, Nedelec, P, additional, Oberthaler, M, additional, Pacifico, N, additional, Pagano, D, additional, Penasa, L, additional, Petracek, V, additional, Prevedelli, M, additional, Ravelli, L, additional, Rienaecker, B, additional, Robert, J, additional, Røhne, O M, additional, Rotondi, A, additional, Sacerdoti, M, additional, Sandaker, H, additional, Santoro, R, additional, Scampoli, P, additional, Simon, M, additional, Smestad, L, additional, Sorrentino, F, additional, Testera, G, additional, Tietje, I C, additional, Widmann, E, additional, Yzombard, P, additional, Zimmer, C, additional, Zmeskal, J, additional, and Zurlo, N, additional

Published
2017
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70. The AEgIS experiment at CERN: measuring antihydrogen free-fall in earth’s gravitational field to test WEP with antimatter

Author

Brusa, R S, primary, Amsler, C, additional, Ariga, T, additional, Bonomi, G, additional, Bräunig, P, additional, Cabaret, L, additional, Caccia, M, additional, Caravita, R, additional, Castelli, F, additional, Cerchiari, G, additional, Comparat, D, additional, Consolati, G, additional, Demetrio, A., additional, Di Noto, L, additional, Doser, M, additional, Ereditato, A, additional, Evans, C, additional, Ferragut, R, additional, Fesel, J, additional, Fontana, A, additional, Gerber, S, additional, Giammarchi, M, additional, Gligorova, A, additional, Guatieri, F, additional, Haider, S, additional, Holmestad, H, additional, Huse, T, additional, Kellerbauer, A, additional, Krasnický, D, additional, Lagomarsino, V, additional, Lansonneur, P, additional, Lebrun, P, additional, Malbrunot, C, additional, Mariazzi, S, additional, Matveev, V, additional, Mazzotta, Z, additional, Nebbia, G, additional, Nedelec, P, additional, Oberthaler, M, additional, Pacifico, N, additional, Pagano, D, additional, Penasa, L, additional, Petracek, V, additional, Pistillo, C, additional, Prelz, F, additional, Prevedelli, M, additional, Ravelli, L, additional, Rienaecker, B, additional, Røhne, O M, additional, Rotondi, A, additional, Sacerdoti, M, additional, Sandaker, H, additional, Santoro, R, additional, Scampoli, P, additional, Smestad, L, additional, Sorrentino, F, additional, Strojek, I M, additional, Testera, G, additional, Tietje, I C, additional, Vamosi, S, additional, Widmann, E, additional, Yzombard, P, additional, Zmeskal, J, additional, and Zurlo, N, additional

Published
2017
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72. Interstitial oxygen related defects and nanovoids in Au implanted a-SiO2 glass depth profiled by positron annihilation spectroscopy

Author

Ravelli, L., Macchi, Carlos Eugenio, Mariazzi, S., Mazzoldi, P., Egger, W., Hugenschmidt, C., Somoza, Alberto Horacio, and Brusa, R. S.

Subjects
Amorphous SiO2, Au implantation, Positrons, Ciencias Físicas, Glass, Nanovoids, Positronium, CIENCIAS NATURALES Y EXACTAS, Física de los Materiales Condensados
Abstract

Samples of amorphous silica were implanted with Au ions at an energy of 190 keV and fluences of 1×1014 ions cm−2and 5×1014 ions cm−2 at room temperature. The damage produced by ion implantation and its evolution with the thermal treatment at 800 °C for one hour in nitrogen atmosphere was depth profiled using three positron annihilation techniques: Doppler broadening spectroscopy, positron annihilation lifetime spectroscopy and coincidence Doppler broadening spectroscopy. Around the ion projected range of Rp = 67 nm, a size reduction of the silica matrix intrinsic nanovoids points out a local densification ofthe material. Oxygen related defects were found to be present at depths four times the ion projected range, showing a high mobility of oxygen molecules from the densified and stressed region towards the bulk. The 800 °C thermal treatment leads to a recovery of the silica intrinsic nanovoids only in the deeper damaged region and the defect distribution, probed by positrons, shrinks around the ion projected range where the Au atoms aggregate. Open volume defects at the interface between Au and the amorphous matrix were evidenced in both the asimplanted and in the thermal treated samples. A practically complete disappearance of the intrinsic nanovoids was observed around Rp when the implantation fluence was increased by two orders of magnitude (3×1016 ions cm−2). In this case, the oxygen defects move to a depth five times larger than Rp. Fil: Ravelli, L.. Universitá di Trento. Dipartamento di Fisica; Italia Fil: Macchi, Carlos Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones En Física E Ingeniería del Centro de la Provincia de Buenos Aires; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física de Materiales; Argentina Fil: Mariazzi, S.. Stefan-Meyer-Institut für subatomare Physik; Austria Fil: Mazzoldi, P.. Università di Padova. Dipartimento di Fisica; Italia Fil: Egger, W.. Universität der Bunderswehr. Institut für Angewandte Physik und Messtechnik; Alemania Fil: Hugenschmidt, C.. Technische Universität München. Physik Department; Alemania Fil: Somoza, Alberto Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física de Materiales; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina Fil: Brusa, R. S.. Universitá di Trento. Dipartamento di Fisica; Italia

Published
2015
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73. AE$\bar g$IS Experiment: Measuring the acceleration $g$ of the earth's gravitational field on antihydrogen beam

Author

Subieta Vasquez, M A, Aghion, S, Ahlen, O, Amsler, C, Ariga, A, Ariga, T, Belov, A S, Bonomi, G, Bräunig, P, Bremer, J, Brusa, R S, Cabaret, L, Caccia, M, Canali, C, Caravita, R, Castelli, F, Cerchiari, G, Cialdi, S, Comparat, D, Consolati, G, Dassa, L, Derking, J H, Domizio, S Di, Noto, L Di, Doser, M, Dudarev, A, Ereditato, A, Ferragut, R, Fontana, A, Genova, P, Giammarchi, M, Gligorova, A, Gninenko, S N, Heider, S, Hogan, S D, Huse, T, Jordan, E, Jørgensen, L V, Kaltenbacher, T, Kawada, J, Kellerbauer, A, Kimura, M, Knecht, A, Krasnicky, D, Lagomarsino, V, Mariazzi, S, Matveev, V A, Merkt, F, Moia, F, Nebbia, G, Nedelec, P, Oberthaler, M K, Pacifico, N, Petracek, V, Pistilo, C, Prelz, F, Prevedelli, M, Regenfus, C, Ricardi, C, Røhne, O, Rotondi, A, Sandaker, H, Scampoli, P, Storey, J, Spacek, M, Testera, G, Trezzi, D, Vaccarone, R, Villa, F, and Zavatarelli, S

Subjects
Physics in General, Physics::Accelerator Physics, Physics::Atomic Physics
Abstract

The AE [??] IS experiment [1] aims at directly measuring the gravitational acceleration g on a beam of cold antihydrogen ( [??] ) to a precision of 1%, performing the first test with antimatter of the (WEP) Weak Equivalence Principle. The experimental apparatus is sited at the Antiproton Decelerator (AD) at CERN, Geneva, Switzerland. After production by mixing of antiprotons with Rydberg state positronium atoms (Ps), the [??] atoms will be driven to fly horizontally with a velocity of a few 100 ms^-1 for a path length of about 1 meter. The small deflection, few tens of mum, will be measured using two material gratings (of period ~ 80 mum) coupled to a position-sensitive detector working as a moire deflectometer similarly to what has been done with matter atoms [2]. The shadow pattern produced by the [??] beam will then be detected by reconstructing the annihilation points with a spatial resolution (~ 2 mum) of each antiatom at the end of the flight path by the sensitive-position detector. During 2012 the experimental apparatus has been commissioned with antiprotons and positrons. Since the AD will not be running during 2013,during the refurbishment of the CERN accelerators, the experiment is currently working with positrons, electrons and protons, in order to prepare the way for the antihydrogen production in late 2014.

Published
2014

74. The AEgIS Experiment

Author

Knecht, A., Aghion, S., Ahlén, O., Amsler, C., Ariga, A., Ariga, T., Belov, A. S., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Canali, C., Caravita, Ruggero, Castelli, F., Cerchiari, G., Cialdi, S., Comparat, D., Consolati, G., Derking, J. H., DI DOMIZIO, Sergio, Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Hogan, S. D., Huse, T., Jordan, E., Jørgensen, L. V., Kaltenbacher, T., Kawada, J., Kellerbauer, A., Kimura, M., Krasnický, D., Lagomarsino, V., Lehner, S., Malbrunot, C., Mariazzi, S., Matveev, V. A., Merkt, F., Moia, F., Nebbia, G., Nédélec, P., Oberthaler, M. K., Pacifico, N., Petráček, V., Pistillo, C., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Røhne, O., Rotondi, A., Sandaker, H., Scampoli, P., Storey, J., Subieta Vasquez, M. A., Špaček, M., Testera, G., Trezzi, D., Vaccarone, R., Widmann, E., Zavatarelli, S., and Zmeskal, J.

Published
2014

75. Structural Evolution and Medium Range Order in Permanently Densified Vitreous SiO2

Author

Zanatta, Marco, Baldi, G, Brusa, R. S, Egger, W, Fontana, A, Gilioli, E, Mariazzi, S, Monaco, G, Ravelli, L, and Sacchetti, F.

Subjects
positron annihilation lifetime spectroscopy, AMORPHOUS MATERIALS, POSITRONIUM ANNIHILATION, COVALENT GLASSES, structure, SILICA, DIFFRACTION PEAK, glasses
Abstract

Positron annihilation lifetime spectroscopy is employed to measure the size of the interstitial void spaces characterizing the structure of a set of permanently densified SiO2 glasses. The average volume of the voids is markedly affected by the densification process and linearly shrinks by almost an order of magnitude after a relative density variation of 22%. In addition, x-ray diffraction shows that this change of density does not modify appreciably the short range order, which remains organized in SiO4 tetrahedra. These results strongly suggest a porous medium description for v-SiO2 glasses where the compressibility and the medium range order are dominated by the density variation of the voids volume up to densities close to that of alpha-quartz.

Published
2014
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76. AEgIS Experiment: Measuring the Acceleration g of the Earth's Gravitational Field on Antihydrogen Beam

Author

Subieta Vasquez, M. A., Aghion, S., Ahlén, O., Amsler, C., Ariga, A., Ariga, T., Belov, A. S., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Caccia, MASSIMO LUGI MARIA, Canali, C., Caravita, R., Castelli, F., Cerchiari, G., Cialdi, S., Comparat, D., Consolati, G., Dassa, L., Derking, J. H., Di Domizio, S., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Heider, S., Hogan, S. D., Huse, T., Jordan, E., Jørgensen, L. V., Kaltenbacher, T., Kawada, J., Kellerbauer, A., Kimura, M., Knecht, A., Krasnický, D., Lagomarsino, V., Mariazzi, S., Matveev, V. A., Merkt, F., Moia, F., Nebbia, G., Nédélec, P., Oberthaler, M. K., Pacifico, N., Petráček, V., Pistilo, C., Prelz, F., Prevedelli, M., Regenfus, C., Ricardi, C., Røhne, O., Rotondi, A., Sandaker, H., Scampoli, P., Storey, J., Špaček, M., Testera, G., Trezzi, D., Vaccarone, R., Villa, F., and Zavatarelli, S.

Subjects
Physics and Astronomy (all)
Published
2014

77. Measuring with , progress and perspectives

Author

Krasnický, D., Aghion, S., Ahlén, O., Amsler, C., Ariga, A., Ariga, T., Belov, A. S., Berggren, K., Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Canali, C., Caravita, R., Castelli, F., Cerchiari, G., Cialdi, S., Comparat, D., Consolati, G., Derking, H., DI DOMIZIO, Sergio, Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Huse, T., Jordan, E., Jørgensen, L. V., Kaltenbacher, T., Kawada, J., Kellerbauer, A., Kimura, M., Knecht, A., Lagomarsino, V., Lehner, S., Magnani, A., Malbrunot, C., Mariazzi, S., Matveev, V. A., Nebbia, G., Nédélec, P., Oberthaler, M. K., Pacifico, N., Petráček, V., Pistillo, C., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Røhne, O., Rotondi, A., Sandaker, H., Scampoli, P., Storey, J., Subieta Vasquez, M. A., Špaček, M., Testera, G., Widmann, E., Yzombard, P., Zavatarelli, S., and Zmeskal, J.

Published
2014

80. Development of nuclear emulsions with 1 μm spatial resolution for the AEgIS experiment

Author

Kimura, M., Aghion, Stefano, Ahlen, O., Amsler, C., Ariga, A., Ariga, T., Belov, A. S., Bonomi, G., Braunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Canali, C., Caravita, R., Castelli, F., Cerchiari, G., Cialdi, S., Comparat, D., Consolati, Giovanni, Derking, J. H., Di Domizio, S., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, RAFAEL OMAR, Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Harasimovicz, J., Hogan, S. D., Huse, T., Jordan, E., Jørgensen, L. V., Kaltenbacher, T., Kawada, J., Kellerbauer, A., Knecht, A., Krasnicky, D., Lagomarsino, V., Magnani, A., Mariazzi, S., Matveev, V. A., Moia, Fabio, Nebbia, G., Nedelec, P., Oberthaler, M. K., Pacifico, N., Petracek, V., Pistillo, C., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Røhne, O., Rotondi, A., Sandaker, H., Scampoli, P., Sosa, A., Storey, J., Subieta Vasquez, M. A., Spacek, M., Testera, G., Trezzi, D., Vaccarone, R., Welschq, C. P., and Zavatarelli, S.

Published
2013

81. AEGIS at CERN: Measuring Antihydrogen Fall

Author

Giammarchi, M. G., Belov, A. S., Bonomi, G., Brusa, R. S., Byakov, V. M., Cabaret, L., Canali, C., Carraro, C., Castelli, F., Cialdi, S., Comparat, D., Consolati, Giovanni, Djourelov, N., Doser, M., Drobychev, G., Dudarev, A., Dupasquier, Alfredo, Fabris, D., Ferragut, RAFAEL OMAR, Ferrari, G., Fischer, A., Fontana, A., Gninenko, S. N., Heyne, R., Hogan, S. D., Jorgensen, L. V., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Mariazzi, S., Matveev, V. A., Merkt, F., Morhard, G., Nebbia, G., Nedelec, P., Oberthaler, M. K., Perini, D., Petracek, V., Prevedelli, M., Riccardi, C., Rohne, O., Rotondi, A., Sacerdoti, M., Sandaker, H., Sillou, D., Stepanov, S. V., Stroke, H. H., Testera, G., Trezzi, D., Turbabin, A. V., Viesti, G., Villa, F., Warring, U., Zavatarelli, S., Zenoni, A., and Zvezhinskij, D. S.

Subjects
Physics, Physics::General Physics, Physics - Instrumentation and Detectors, Large Hadron Collider, CPT symmetry, Atomic Physics (physics.atom-ph), FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, General Relativity and Quantum Cosmology (gr-qc), Instrumentation and Detectors (physics.ins-det), General Relativity and Quantum Cosmology, Atomic and Molecular Physics, and Optics, Physics - Atomic Physics, Nuclear physics, Antiproton Decelerator, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Gravitational field, Antimatter, Physics::Accelerator Physics, High Energy Physics::Experiment, Antihydrogen, Particle Physics - Phenomenology
Abstract

The main goal of the AEGIS experiment at the CERN Antiproton Decelerator is the test of fundamental laws such as the Weak Equivalence Principle (WEP) and CPT symmetry. In the first phase of AEGIS, a beam of antihydrogen will be formed whose fall in the gravitational field is measured in a Moire' deflectometer; this will constitute the first test of the WEP with antimatter., Comment: Presented at the Fifth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 28-July 2, 2010

Published
2011
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85. A moiré deflectometer for antimatter

Author

Aghion, S., Ahlén, O., Amsler, C., Ariga, A., Ariga, T., Belov, A. S., Berggren, Karl, Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Canali, C., Caravita, R., Castelli, F., Cerchiari, G., Cialdi, S., Comparat, D., Consolati, G., Derking, H., Di Domizio, S., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Huse, T., Jordan, E., Jørgensen, L. V., Kaltenbacher, T., Kawada, J., Kellerbauer, A., Kimura, M., Knecht, A., Krasnický, D., Lagomarsino, V., Lehner, S., Magnani, A., Malbrunot, C., Mariazzi, S., Matveev, V. A., Moia, F., Nebbia, G., Nédélec, P., Oberthaler, M. K., Pacifico, N., Petràček, V., Pistillo, C., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Røhne, O., Rotondi, A., Sandaker, H., Scampoli, P., Storey, J., Vasquez, M.A. Subieta, Špaček, M., Testera, G., Vaccarone, R., Widmann, E., Zavatarelli, S., Zmeskal, J., Aghion, S., Ahlén, O., Amsler, C., Ariga, A., Ariga, T., Belov, A. S., Berggren, Karl, Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Canali, C., Caravita, R., Castelli, F., Cerchiari, G., Cialdi, S., Comparat, D., Consolati, G., Derking, H., Di Domizio, S., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Huse, T., Jordan, E., Jørgensen, L. V., Kaltenbacher, T., Kawada, J., Kellerbauer, A., Kimura, M., Knecht, A., Krasnický, D., Lagomarsino, V., Lehner, S., Magnani, A., Malbrunot, C., Mariazzi, S., Matveev, V. A., Moia, F., Nebbia, G., Nédélec, P., Oberthaler, M. K., Pacifico, N., Petràček, V., Pistillo, C., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Røhne, O., Rotondi, A., Sandaker, H., Scampoli, P., Storey, J., Vasquez, M.A. Subieta, Špaček, M., Testera, G., Vaccarone, R., Widmann, E., Zavatarelli, S., and Zmeskal, J.

Abstract

The precise measurement of forces is one way to obtain deep insight into the fundamental interactions present in nature. In the context of neutral antimatter, the gravitational interaction is of high interest, potentially revealing new forces that violate the weak equivalence principle. Here we report on a successful extension of a tool from atom optics—the moiré deflectometer—for a measurement of the acceleration of slow antiprotons. The setup consists of two identical transmission gratings and a spatially resolving emulsion detector for antiproton annihilations. Absolute referencing of the observed antimatter pattern with a photon pattern experiencing no deflection allows the direct inference of forces present. The concept is also straightforwardly applicable to antihydrogen measurements as pursued by the AEgIS collaboration. The combination of these very different techniques from high energy and atomic physics opens a very promising route to the direct detection of the gravitational acceleration of neutral antimatter., QC 20160304

Published
2014
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86. Measuring GBAR with emulsion detector

Author

Ariga, T., Aghion, S., Ahlén, O., Amsler, C., Ariga, A., Belov, A. S., Berggren, Karl, Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Canali, C., Caravita, R., Castelli, F., Cerchiari, G., Cialdi, S., Comparat, D., Consolati, G., Derking, H., Di Domizio, S., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Huse, T., Jordan, E., Jørgensen, L. V., Kaltenbacher, T., Kawada, J., Kellerbauer, A., Kimura, M., Knecht, A., Krasniký, D., Lagomarsino, V., Lehner, S., Magnani, A., Malbrunot, C., Mariazzi, S., Matveev, V. A., Nebbia, G., Nédélec, P., Oberthaler, M. K., Pacifico, N., Petráček, V., Pistillo, C., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Røhne, O., Rotondi, A., Sandaker, H., Scampoli, P., Storet, J., Subieta Vasquez, M. A., Špaček, M., Testera, G., Widmann, E., Yzombard, P., Zavaterelli, S., Zmeskal, J., Ariga, T., Aghion, S., Ahlén, O., Amsler, C., Ariga, A., Belov, A. S., Berggren, Karl, Bonomi, G., Bräunig, P., Bremer, J., Brusa, R. S., Cabaret, L., Canali, C., Caravita, R., Castelli, F., Cerchiari, G., Cialdi, S., Comparat, D., Consolati, G., Derking, H., Di Domizio, S., Di Noto, L., Doser, M., Dudarev, A., Ereditato, A., Ferragut, R., Fontana, A., Genova, P., Giammarchi, M., Gligorova, A., Gninenko, S. N., Haider, S., Huse, T., Jordan, E., Jørgensen, L. V., Kaltenbacher, T., Kawada, J., Kellerbauer, A., Kimura, M., Knecht, A., Krasniký, D., Lagomarsino, V., Lehner, S., Magnani, A., Malbrunot, C., Mariazzi, S., Matveev, V. A., Nebbia, G., Nédélec, P., Oberthaler, M. K., Pacifico, N., Petráček, V., Pistillo, C., Prelz, F., Prevedelli, M., Regenfus, C., Riccardi, C., Røhne, O., Rotondi, A., Sandaker, H., Scampoli, P., Storet, J., Subieta Vasquez, M. A., Špaček, M., Testera, G., Widmann, E., Yzombard, P., Zavaterelli, S., and Zmeskal, J.

Abstract

QC 20160304

Published
2014
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87. Measuring the antihydrogen fall

Author

Bonomi, G., Giammarchi, M. G., Belov, A. S., Boscolo, I., Brambilla, N., Brusa, R. S., Byakov, V. M. m., Cabaret, L., Canali, C., Carraro, C., Castelli, F., Cialdi, S., De Combarieu, M., Comparat, D., Consolati, Giovanni, Djourelov, N., Doser, M., Drobychev, G. A., Dupasquier, Alfredo, Ferragut, RAFAEL OMAR, Formaro, L., Lunardon, M., Gervasini, A., Gninenko, S. N., Gribakin, G., Heyne, R., Kellerbauer, A., Krasnicky, D., Lagomarsino, V., Manuzio, G., Mariazzi, S., Matveev, V. A., Moretto, S., Morhard, C., Nebbia, G., Nedelec, P., Oberthaler, M. K., Pari, P., Petracek, V., Prevedelli, M., Al qaradawi, I. Y., Quasso, Fiorenza, Rohne, O., Pesente, S., Rotondi, A., Stapnes, S., Sillou, D., Stepanov, S. V., Stroke, H. H., Testera, G., Tino, G. M., Vairo, A., Viesti, G., Villa, F., Walters, H., Warring, U., Zavatarelli, S., Zenoni, A., and Zvezhinskij, D. S.

Subjects
Physics, Nuclear and High Energy Physics, Annihilation, Gravity, Condensed Matter Physics, Gravitational acceleration, Atomic and Molecular Physics, and Optics, Nuclear physics, Interferometry, Antihydrogen, Path length, Antimatter, Production (computer science), Physical and Theoretical Chemistry, Beam (structure)
Abstract

The AEḡIS experiment (Antimatter Experiment: Gravity, Interferometry, Spectroscopy (Drobychev et al., 2007)), aims at directly measuring the gravitational acceleration g on a beam of cold antihydrogen (\(\overline{\rm H}\)). After production, the \(\overline{\rm H}\) atoms will be driven to fly horizontally with a velocity of a few 100 m/s for a path length of about 1 meter. The small deflection, few tens of μm, will be measured using two material gratings coupled to a position-sensitive detector working as a Moire deflectometer similarly to what has been done with atoms (Oberthaler et al., Phys Rev A 54:3165, 1996). Details about the detection of the \(\overline{\rm H}\) annihilation point at the end of the flight path with a position-sensitive microstrip detector and a silicon tracker system will be discussed.

Published
2009

88. Proposal for the AEGIS experiment at the CERN antiproton decelerator (Antimatter Experiment: Gravity, Interferometry, Spectroscopy)

Author

Drobychev, G Yu, Nédélec, P, Sillou, D, Gribakin, G, Walters, H, Ferrari, G, Prevedelli, M, Tino, G M, Doser, M, Canali, C, Carraro, C, Lagomarsino, V, Manuzio, G, Testera, G, Zavatarelli, S, Amoretti, M, Kellerbauer, A G, Meier, J, Warring, U, Oberthaler, M K, Boscolo, I, Castelli, F, Cialdi, S, Formaro, L, Gervasini, A, Giammarchi, G, Vairo, Antonio, Consolati, G, Dupasquier, A, Quasso, F, Stroke, Hinko Henry, Belov, A S, Gninenko, S N, Matveev, V A, Byakov, V M, Stepanov, S V, Zvezhinskij, D S, De Combarieu, M, Forget, P, Pari, P, Cabaret, L, Comparat, D, Bonomi, G, Rotondi, A, Djourelov, N, Jacquey, M, Büchner, M, Trénec, G, Vigué, J, Brusa, R S, Mariazzi, S, Hogan, S, Merkt, F, Badertscher, A, Crivelli, P, Gendotti, U, and Rubbia, André

Subjects
Detectors and Experimental Techniques
Published
2007

90. Positronium for Antihydrogen Production in the AEGIS Experiment.

Author

CONSOLATI, G., AGHION, S., AMSLER, C., BONOMI, G., BRUSA, R. S., CACCIA, M., CARAVITA, R., CASTELLI, F., CERCHIARI, G., COMPARAT, D., DEMETRIO, A., DI NOTO, L., DOSER, M., EVANS, C., FANÌ, M., FERRAGUT, R., FESEL, J., FONTANA, A., GERBER, S., and GIAMMARCHI, M.

Subjects
POSITRONIUM, ANTIHYDROGEN, INTERFEROMETRY, CHEMICAL synthesis, PATHOGENIC microorganisms
Abstract

The primary goal of the Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEGIS) collaboration is to measure for the first time precisely the gravitational acceleration of antihydrogen, H, a fundamental issue of contemporary physics, using a beam of antiatoms. Indeed, although indirect arguments have been raised against a different acceleration of antimatter with respect to matter, nevertheless some attempts to formulate quantum theories of gravity, or to unify gravity with the other forces, consider the possibility of a non-identical gravitational interaction between matter and antimatter. We plan to generate H through a charge-exchange reaction between excited Ps and antiprotons coming from the Antiproton Decelerator facility at CERN. It offers the advantage to produce sufficiently cold antihydrogen to make feasible a measurement of gravitational acceleration with reasonable uncertainty (of the order of a few percent). Since the cross-section of the above reaction increases with n4, n being the principal quantum number of Ps, it is essential to generate Ps in a highly excited (Rydberg) state. This will occur by means of two laser excitations of Ps emitted from a nanoporous silica target: a first UV laser (at 205 nm) will bring Ps from the ground to the n = 3 state; a second laser pulse (tunable in the range 1650-1700 nm) will further excite Ps to the Rydberg state. [ABSTRACT FROM AUTHOR]

Published
2017
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91. ADVANCES IN PS MANIPULATIONS AND LASER STUDIES IN THE AEgIS EXPERIMENT.

Author

CARAVITA, R., AGHION, S., AMSLER, C., BONOMI, G., BRUSA, R. S., CACCIA, M., CASTELLI, F., CERCHIARI, G., COMPARAT, D., CONSOLATI, G., DEMETRIO, A., DI NOTO, L., DOSER, M., EVANS, C., FERRAGUT, R., FESEL, J., FONTANA, A., GERBER, S., GIAMMARCHI, M., and GLIGOROVA, A.

Subjects
RYDBERG states, ANTIHYDROGEN, POSITRONIUM, EXOTIC atoms, SPECTRUM analysis
Abstract

Positronium (Ps), the unstable bound state of electron and positron, is a valuable system for neutral antimatter spectroscopic studies and for antihydrogen production. Forming a pulsed beam cold antihydrogen using charge-exchange with the Rydberg Ps is the goal of the AEgIS Collaboration, which aims to measure gravity on neutral antimatter. Recent results achieved in producing, manipulating and studying Ps are summarized. Ps has been first produced with mesoporous silica targets in a reflection geometry. Spectroscopy of Ps n = 3 state has been conducted, yielding as a byproduct an independent estimate of the produced Ps temperature. Efficient laser excitation to the Rydberg levels was then achieved, validating the proof-of-concept of AEgIS. Subsequently, production of Ps from a new class of transmission targets was also achieved, opening the possibility for future experiments. [ABSTRACT FROM AUTHOR]

Published
2017
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94. Comparison of Planar and 3D Silicon Pixel Sensors Used for Detection of Low Energy Antiprotons

Author

Gligorova, A., primary, Caravita, R., additional, Castelli, F., additional, Cerchiari, G., additional, Cialdi, S., additional, Comparat, D., additional, Consolati, G., additional, Derking, J. H., additional, Da Via, C., additional, Di Domizio, S., additional, Di Noto, L., additional, Aghion, S., additional, Doser, M., additional, Dudarev, A., additional, Ferragut, R., additional, Fontana, A., additional, Genova, P., additional, Giammarchi, M., additional, Gninenko, S. N., additional, Haider, S., additional, Holmestad, H., additional, Huse, T., additional, Belov, A. S., additional, Jordan, E., additional, Kaltenbacher, T., additional, Kellerbauer, A., additional, Knecht, A., additional, Krasnicky, D., additional, Lagomarsino, V., additional, Lehner, S., additional, Magnani, A., additional, Malbrunot, C., additional, Mariazzi, S., additional, Bonomi, G., additional, Matveev, V. A., additional, Moia, F., additional, Nellist, C., additional, Nebbia, G., additional, Nedelec, P., additional, Oberthaler, M., additional, Pacifico, N., additional, Petracek, V., additional, Prelz, F., additional, Prevedelli, M., additional, Braunig, P., additional, Riccardi, C., additional, Rohne, O., additional, Rotondi, A., additional, Sandaker, H., additional, Subieta Vasquez, M. A., additional, Spacek, M., additional, Testera, G., additional, Widmann, E., additional, Yzombard, P., additional, Zavatarelli, S., additional, Bremer, J., additional, Zmeskal, J., additional, Brusa, R. S., additional, Cabaret, L., additional, and Caccia, M., additional

Published
2014
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95. A moiré deflectometer for antimatter

Author

Aghion, S., primary, Ahlén, O., additional, Amsler, C., additional, Ariga, A., additional, Ariga, T., additional, Belov, A. S., additional, Berggren, K., additional, Bonomi, G., additional, Bräunig, P., additional, Bremer, J., additional, Brusa, R. S., additional, Cabaret, L., additional, Canali, C., additional, Caravita, R., additional, Castelli, F., additional, Cerchiari, G., additional, Cialdi, S., additional, Comparat, D., additional, Consolati, G., additional, Derking, H., additional, Di Domizio, S., additional, Di Noto, L., additional, Doser, M., additional, Dudarev, A., additional, Ereditato, A., additional, Ferragut, R., additional, Fontana, A., additional, Genova, P., additional, Giammarchi, M., additional, Gligorova, A., additional, Gninenko, S. N., additional, Haider, S., additional, Huse, T., additional, Jordan, E., additional, Jørgensen, L. V., additional, Kaltenbacher, T., additional, Kawada, J., additional, Kellerbauer, A., additional, Kimura, M., additional, Knecht, A., additional, Krasnický, D., additional, Lagomarsino, V., additional, Lehner, S., additional, Magnani, A., additional, Malbrunot, C., additional, Mariazzi, S., additional, Matveev, V. A., additional, Moia, F., additional, Nebbia, G., additional, Nédélec, P., additional, Oberthaler, M. K., additional, Pacifico, N., additional, Petràček, V., additional, Pistillo, C., additional, Prelz, F., additional, Prevedelli, M., additional, Regenfus, C., additional, Riccardi, C., additional, Røhne, O., additional, Rotondi, A., additional, Sandaker, H., additional, Scampoli, P., additional, Storey, J., additional, Vasquez, M.A. Subieta, additional, Špaček, M., additional, Testera, G., additional, Vaccarone, R., additional, Widmann, E., additional, Zavatarelli, S., additional, and Zmeskal, J., additional

Published
2014
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96. The AEgIS Experiment

Author

Knecht, A., primary, Aghion, S., additional, Ahlén, O., additional, Amsler, C., additional, Ariga, A., additional, Ariga, T., additional, Belov, A. S., additional, Bonomi, G., additional, Bräunig, P., additional, Bremer, J., additional, Brusa, R. S., additional, Cabaret, L., additional, Canali, C., additional, Caravita, R., additional, Castelli, F., additional, Cerchiari, G., additional, Cialdi, S., additional, Comparat, D., additional, Consolati, G., additional, Derking, J. H., additional, Domizio, S. Di, additional, Noto, L. Di, additional, Doser, M., additional, Dudarev, A., additional, Ereditato, A., additional, Ferragut, R., additional, Fontana, A., additional, Genova, P., additional, Giammarchi, M., additional, Gligorova, A., additional, Gninenko, S. N., additional, Haider, S., additional, Hogan, S. D., additional, Huse, T., additional, Jordan, E., additional, Jørgensen, L. V., additional, Kaltenbacher, T., additional, Kawada, J., additional, Kellerbauer, A., additional, Kimura, M., additional, Krasnický, D., additional, Lagomarsino, V., additional, Lehner, S., additional, Malbrunot, C., additional, Mariazzi, S., additional, Matveev, V. A., additional, Merkt, F., additional, Moia, F., additional, Nebbia, G., additional, Nédélec, P., additional, Oberthaler, M. K., additional, Pacifico, N., additional, Petráček, V., additional, Pistillo, C., additional, Prelz, F., additional, Prevedelli, M., additional, Regenfus, C., additional, Riccardi, C., additional, Røhne, O., additional, Rotondi, A., additional, Sandaker, H., additional, Scampoli, P., additional, Storey, J., additional, Subieta Vasquez, M. A., additional, Špaček, M., additional, Testera, G., additional, Trezzi, D., additional, Vaccarone, R., additional, Widmann, E., additional, Zavatarelli, S., additional, and Zmeskal, J., additional

Published
2014
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97. Detection of low energy antiproton annihilations in a segmented silicon detector

Author

Aghion, S, primary, Ahlén, O, additional, Belov, A S, additional, Bonomi, G, additional, Bräunig, P, additional, Bremer, J, additional, Brusa, R S, additional, Burghart, G, additional, Cabaret, L, additional, Caccia, M, additional, Canali, C, additional, Caravita, R, additional, Castelli, F, additional, Cerchiari, G, additional, Cialdi, S, additional, Comparat, D, additional, Consolati, G, additional, Derking, J H, additional, Domizio, S Di, additional, Noto, L Di, additional, Doser, M, additional, Dudarev, A, additional, Ferragut, R, additional, Fontana, A, additional, Genova, P, additional, Giammarchi, M, additional, Gligorova, A, additional, Gninenko, S N, additional, Haider, S, additional, Harasimowicz, J, additional, Huse, T, additional, Jordan, E, additional, JØrgensen, L V, additional, Kaltenbacher, T, additional, Kellerbauer, A, additional, Knecht, A, additional, Krasnický, D, additional, Lagomarsino, V, additional, Magnani, A, additional, Mariazzi, S, additional, Matveev, V A, additional, Moia, F, additional, Nebbia, G, additional, Nédélec, P, additional, Pacifico, N, additional, Petráček, V, additional, Prelz, F, additional, Prevedelli, M, additional, Regenfus, C, additional, Riccardi, C, additional, RØhne, O, additional, Rotondi, A, additional, Sandaker, H, additional, Sosa, A, additional, Vasquez, M A Subieta, additional, Špaček, M, additional, Testera, G, additional, Welsch, C P, additional, and Zavatarelli, S, additional

Published
2014
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100. Development of nuclear emulsions operating in vacuum for the AEgIS experiment

Author

Scampoli, P, primary, Aghion, S, additional, Ahlén, O, additional, Amsler, C, additional, Ariga, A, additional, Ariga, T, additional, Belov, A S, additional, Berggren, K, additional, Bonomi, G, additional, Bräunig, P, additional, Bremer, J, additional, Brusa, R S, additional, Cabaret, L, additional, Caccia, M, additional, Canali, C, additional, Caravita, R, additional, Castelli, F, additional, Cerchiari, G, additional, Cialdi, S, additional, Comparat, D, additional, Consolati, G, additional, Derking, H, additional, Domizio, S Di, additional, Noto, L Di, additional, Doser, M, additional, Dudarev, A, additional, Ereditato, A, additional, Ferragut, R, additional, Fontana, A, additional, Genova, P, additional, Giammarchi, M, additional, Gligorova, A, additional, Gninenko, S N, additional, Haider, S, additional, Huse, T, additional, Jordan, E, additional, JØrgensen, L V, additional, Kaltenbacher, T, additional, Kawada, J, additional, Kellerbauer, A, additional, Kimura, M, additional, Knecht, A, additional, Krasnický, D, additional, Lagomarsino, V, additional, Lehner, S, additional, Malbrunot, C, additional, Mariazzi, S, additional, Matveev, V A, additional, Moia, F, additional, Nebbia, G, additional, Nédélec, P, additional, Oberthaler, M K, additional, Pacifico, N, additional, Petráček, V, additional, Pistillo, C, additional, Prelz, F, additional, Prevedelli, M, additional, Regenfus, C, additional, Riccardi, C, additional, RØhne, O, additional, Rotondi, A, additional, Sandaker, H, additional, Storey, J, additional, Vasquez, M A Subieta, additional, Špaček, M, additional, Testera, G, additional, Wildmann, E, additional, Zavatarelli, S, additional, and Zmeskal, J, additional

Published
2014
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