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1. Observational constraints on f(T) gravity from model-independent data

Author: F. B. M. dos Santos, J. E. Gonzalez, and R. Silva
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract We establish new constraints on f(T) gravity models by using cosmological data. In particular, we investigate the restrictions given by the gas mass fraction measurements of galaxy clusters and transversal BAO data. Both data sets are regarded as weakly dependent on a fiducial cosmology. In addition, we also include a CMB measurement of the temperature power spectrum first peak, along with H(z) values from cosmic chronometers and supernovae data from the Pantheon data set. We also perform a forecast for future constraints on the deviation of f(T) models from the $$\Lambda $$ Λ CDM scenario by following the specifications of the J-PAS and Euclid surveys and find significant improvements on the constraints of the b-parameter, when compared to the results of the statistical analysis.
Published: 2022
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2. Gravitational lens time-delay as a probe of a possible time variation of the fine-structure constant

Author: L. R. Colaço, J. E. Gonzalez, and R. F. L. Holanda
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract A new method based on large scale structure observations is proposed to probe a possible temporal variation of the fine-structure constant ( $$\alpha $$ α ). Our analyses are based on time-delay of Strong Gravitational Lensing and Type Ia Supernovae observations. By considering the runaway dilaton scenario, where the cosmological temporal evolution of the fine-structure constant is given by $$\frac{\Delta \alpha }{\alpha } \approx -\gamma \ln {(1+z)}$$ Δ α α ≈ - γ ln ( 1 + z ) , we obtain limits on the physical properties parameter of the model ( $$\gamma $$ γ ) at the level $$10^{-2}$$ 10 - 2 ( $$1\sigma $$ 1 σ ). Although our limits are less restrictive than those obtained by quasar spectroscopy, the approach presented here provides new bounds on the possibility of $$\frac{\Delta \alpha }{\alpha } \ne 0$$ Δ α α ≠ 0 at a different range of redshifts.
Published: 2021
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3. Physical constraints on interacting dark energy models

Author: J. E. Gonzalez, H. H. B. Silva, R. Silva, and J. S. Alcaniz
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Physical limits on the equation-of-state (EoS) parameter of a dark energy component non-minimally coupled with the dark matter field are examined in light of the second law of thermodynamics and the positiveness of entropy. Such constraints are combined with observational data sets of type Ia supernovae, baryon acoustic oscillations and the angular acoustic scale of the cosmic microwave background to impose restrictions on the behaviour of the dark matter/dark energy interaction. Considering two EoS parameterisations of the type $$w = w_0 + w_a\zeta (z)$$ w=w0+waζ(z) , we derive a general expression for the evolution of the dark energy density and show that the combination of thermodynamic limits and observational data provide tight bounds on the $$w_0 - w_a$$ w0-wa parameter space.
Published: 2018
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4. Cardiac injury before and after COVID-19. A longitudinal MRI study

Author: J E Gonzalez, A Doltra, R J Perea, P Lapena, C Garcia-Ribas, J Reventos, G Caixal, J M Tolosana, E Guasch, I Roca-Luque, E Arbelo, M Sitges, S Prat, L Mont, and T F Althoff
Subjects: Cardiology and Cardiovascular Medicine
Abstract: Background Recent MRI-based studies have raised great concern about frequent cardiac involvement even in mild or asymptomatic COVID-19. However, while signs of myocardial injury were found in large proportions of patients after COVID-19, all studies published to date lack baseline imaging and are therefore unable to discriminate between pre-existing and COVID-19-induced injury. Purpose In this longitudinal study, we aimed to assess the true cardiac impact of COVID-19 based on pre- and post-COVID-19 late gadolinium enhancement (LGE)-MRI. Methods A prospective registry of patients with serial LGE-MRIs was screened for patients with documented SARS-COV-2 infection after cardiac LGE-MRI. Eligible patients then received a post-COVID-19 LGE-MRI using the same scanner and sequence as in the pre-COVID-19 MRI. Inversion recovery prepared T1-weighted gradient echo sequences were acquired in sinus rhythm using ECG gating and a free-breathing 3D navigator, 15–20 minutes after administering an intravenous bolus of 0.2 mmol/kg of gadobutrol. A TI scout sequence was used in order to determine the optimal TI that nullified the left ventricular myocardial signal. The presence of LGE was independently assessed qualitatively by two experienced investigators blinded to patient information. For quantitative analyses a 3D-reconstruction of the left ventricle was performed using ADAS-3D software. LGE was then automatically quantified based on a prespecified signal intensity threshold of ≥3 SD above the mean of a remote non-enhanced myocardial region. Results Pre- and post-COVID LGE-MRI from 31 patients with cardiovascular risk factors that had recovered from mild to moderate COVID-19 (23% hospitalised) were analysed. At a median of 5 months post-COVID-19, LGE-lesions indicative of myocardial injury were encountered in 15 out of 31 patients (48%), which is in line with previous reports. However, intraindividual comparison with the pre-COVID-19 MRI reveiled all of these lesions as pre-existing and thus not COVID-19-related. Quantitative analysis detected no increase in the size of individual LGE-lesions, nor in the global left ventricular LGE-extent. There was no difference in any functional or structural parameter between pre- and post-COVID-19 MRI. Conclusion This longitudinal study in a cohort of patients considered at high risk of cardiac involvement, did not find any evidence for COVID-19-induced myocardial injury. The complete absence of de novo LGE lesions in this cohort is reassuring and indicates that cardiac sequelae of COVID-19 are rare and certainly not as common as previously suggested. Funding Acknowledgement Type of funding sources: None.
Published: 2022
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5. Gravitational lens time-delay as a probe of a possible time variation of the fine-structure constant

Author: J. E. Gonzalez, R. F. L. Holanda, and L. R. Colaço
Subjects: Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics and Astronomy (miscellaneous), Strong gravitational lensing, FOS: Physical sciences, Quasar, Fine-structure constant, Astrophysics::Cosmology and Extragalactic Astrophysics, QC770-798, Type (model theory), Astrophysics, Redshift, QB460-466, Supernova, Gravitational lens, Nuclear and particle physics. Atomic energy. Radioactivity, Dilaton, Engineering (miscellaneous), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: A new method based on large-scale structure observations is proposed to probe a possible time variation of the fine-structure constant ($\alpha$). Our analyses are based on time-delay of Strong Gravitational Lensing and Type Ia Supernovae observations. By considering a class of runaway dilaton models, where the cosmological evolution of the fine-structure constant is given by $\frac{\Delta \alpha}{\alpha} \approx -\gamma \ln{(1+z)}$, we obtain limits on the physical properties parameter of the model ($\gamma$) at the level $10^{-2}$ ($1\sigma$). Although our limits are less restrictive than those obtained by quasar spectroscopy, the approach presented here provides new bounds on the possibility of $\frac{\Delta \alpha}{\alpha} \neq 0$ at a different range of redshifts., Comment: 9 pages, 4 figures and 1 table - Accepted in The European Physical Journal C
Published: 2021

6. Side effects of different pesticides used in citrus on the adult stage of the parasitoid Aphytis melinus DeBach (Hymenoptera Aphelinidae) and its progeny

Author: J. E. Gonzalez-Zamora, M. L. Castillo, and C. Avilla
Subjects: mortality, fecundity, persistence, IPM, parasitism, Agriculture
Abstract: Twelve pesticides commonly used in citrus in Spain were tested on adults of Aphytis melinus DeBach to determine their effects on parasitoid survival and fecundity, and the duration of the residue of each pesticide. Six of these pesticides were found to be harmless to moderately harmful to this parasitoid in a laboratory assay in closed Petri dishes: spinosad (bait formulation), azadirachtin, fenbutatin, fosetyl-Al, copper oxichloride, and mancozeb, with their scores on the reduction of beneficial capacity (RBC) index being between 21.4 and 94.6% after one week. The other six pesticides classified as harmful were tested on citrus plants to study their persistence over time under greenhouse conditions: Pirimicarb, pyriproxifen, paraffinic oil, abamectin, chlorpyrifos, and lambda-cyhalothrin. Most of these products reduced their negative effect on adults of A. melinus between one and six weeks after treatment, although lambda-cyhalothrin was still harmful to parasitoids 11 weeks after application. This information can help growers and consultants to make decisions about pesticide selection and application timing in citrus in order to support IPM implementation when A. melinus is present.
Published: 2013
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7. The miniJPAS survey: a preview of the Universe in 56 colours

Author: S. Carneiro, Matteo Maturi, Antonio Kanaan, Beatriz B. Siffert, N. Oliveira, J. M. Casino, M. Quartin, Paula Coelho, F. M. Jiménez-Esteban, Jonás Chaves-Montero, A. Z. Vitorelli, Alvaro Orsi, T. Civera, G. Calderone, H. Vázquez Ramió, S. Rueda-Teruel, G. Martínez-Somonte, B. Ascaso, U. Andrade, Roderik Overzier, A. Yanes-Díaz, Vicent J. Martínez, Armando Bernui, J. Alcaniz, Paulo A. A. Lopes, C. Íniguez, J. L Antón Bravo, Elcio Abdalla, Sergio Chueca, H. B. Yuan, Daniela Lazzaro, David Izquierdo-Villalba, J. E. Gonzalez, Tom Broadhurst, E. Martínez-González, Jaan Laur, Tiago Castro, P. Vielva, P. O. Baqui, Stavros Akras, A. Marcos-Caballero, Gustavo Bruzual, R. B. de Melo, Jeremy Lim, S. Rodríguez Llano, J. Cepa, Mariano Moles, Pablo Arnalte-Mur, Keith E. Taylor, Luciano Casarini, Alberto Fernández-Soto, Jorge Iglesias-Páramo, Jose M. Diego, Fernando J. Ballesteros, Francisco Prada, G. Martínez-Solaeche, Luis Raul Weber Abramo, D. Lozano-Pérez, Anthony H. Gonzalez, Shinji Tsujikawa, José Ignacio González-Serrano, J. Castillo, S. Duarte Puertas, J. Garzarán Calderaro, Antti Tamm, Vincenzo Salzano, R. Iglesias-Marzoa, D. Spinoso, Enrique Pérez, G. Coutinho de Carvalho, Arianna Cortesi, Francisco S. Kitaura, C. E. Barbosa, D. Brito-Silva, Marcelo J. Rebouças, Siddhartha Gurung-López, D. Figueruelo, J. Beltrán Jiménez, A. Ederoclite, G. López-Alegre, A. L. de Amorim, Adi Zitrin, J. E. Rodríguez-Martín, Keiichi Umetsu, C. Kehrig, M. Borges Fernandes, C. Pigozzo, P. Dimauro, J. M. Carvano, R. S. Gonçalves, R. Bello Ferrer, D. Muniesa, C. Hernández-Monteagudo, R. Lopes de Oliveira, E. L. Molina-Ibáñez, L. Sodré, Fabricio Ferrari, A. López-Sainz, R. A. Dupke, A. Balaguera-Antolínez, Joel N. Bregman, A. Moreno-Signes, A. Hernán-Caballero, J. Abril Ibañez, Joao Varela, G. Magris, R. Monteiro-Oliveira, Micol Benetti, Yolanda Jiménez-Teja, Alexis Finoguenov, J. L. Lamadrid Gutierrez, J. J. Blanco-Pillado, A. Arroyo-Polonio, David Cristóbal-Hornillos, Eleazar R. Carrasco, Martín A. Guerrero, Marc Huertas-Company, N. Maícas Sacristán, Elmo Tempel, F. Lopez-Martinez, N. Greisel, Valerio Marra, L. Cuesta, Geferson Lucatelli, C. Mendes de Oliveira, R. von Marttens, Ricardo G. Landim, E. Telles, Jimmy A. Irwin, M. Penna-Lima, R. Cid Fernandes, Carlos López-Sanjuan, S. Santos da Costa, David Martínez-Delgado, A. J. Cenarro, Fernando Roig, Narciso Benítez, Alvaro Alvarez-Candal, Emilio J. Alfaro, José M. Vílchez, Ana L. Chies-Santos, S. Bonoli, C. B. Pereira, L. Doubrawa, V. Tilve Rua, Eduardo Serra Cypriano, S. Bielsa, L. Valdivielso, Simone Daflon, Jun-Qing Xia, A. L. Maroto, Ribamar R. R. Reis, C. Queiroz, C. C. Kirkpatrick, Rubén García-Benito, Carlos A. P. Bengaly, M. Aparicio Resco, C. A. Galarza, D. Herranz, Antonio Marin-Franch, F. Rueda-Teruel, M. C. Díaz-Martín, L. A. Díaz-García, Amanda R. Lopes, M. Royo Navarro, Vinicius M. Placco, R. M. González Delgado, Jose Miguel Rodriguez-Espinosa, M. L. L. Dantas, D. R. Gonçalves, Raul E. Angulo, Department of Physics, Universidad de Cantabria, 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)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Economía y Competitividad (España), Chinese Academy of Sciences, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Financiadora de Estudos e Projetos (Brasil), Ministry of Science and Technology (Taiwan), Fundação de Amparo à Pesquisa do Estado de São Paulo, Universidad Nacional Autónoma de México, Alexander von Humboldt Foundation, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY)
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), media_common.quotation_subject, FOS: Physical sciences, Astrophysics, astronomical databases: miscellaneous, Surveys, law.invention, Photometry (optics), Telescope, techniques: photometric, Extended Groth Strip, surveys, Observatory, law, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], observations [Cosmology], Instrumentation and Methods for Astrophysics (astro-ph.IM), stars: general, media_common, Physics, general [Stars], photometric [Techniques], Astronomy and Astrophysics, Quasar, general [Galaxies], 115 Astronomy, Space science, galaxies: general, Astrophysics - Astrophysics of Galaxies, Galaxy, Redshift, Space and Planetary Science, Sky, Astrophysics of Galaxies (astro-ph.GA), cosmology: observations, miscellaneous [Astronomical databases], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Full list of authors: Bonoli, S.; Marín-Franch, A.; Varela, J.; Vázquez Ramió, H.; Abramo, L. R.; Cenarro, A. J.; Dupke, R. A.; Vílchez, J. M.; Cristóbal-Hornillos, D.; González Delgado, R. M.; Hernández-Monteagudo, C.; López-Sanjuan, C.; Muniesa, D. J.; Civera, T.; Ederoclite, A.; Hernán-Caballero, A.; Marra, V.; Baqui, P. O.; Cortesi, A.; Cypriano, E. S.; Daflon, S.; de Amorim, A. L.; Díaz-García, L. A.; Diego, J. M.; Martínez-Solaeche, G.; Pérez, E.; Placco, V. M.; Prada, F.; Queiroz, C.; Alcaniz, J.; Alvarez-Candal, A.; Cepa, J.; Maroto, A. L.; Roig, F.; Siffert, B. B.; Taylor, K.; Benitez, N.; Moles, M.; Sodré, L.; Carneiro, S.; Mendes de Oliveira, C.; Abdalla, E.; Angulo, R. E.; Aparicio Resco, M.; Balaguera-Antolínez, A.; Ballesteros, F. J.; Brito-Silva, D.; Broadhurst, T.; Carrasco, E. R.; Castro, T.; Cid Fernandes, R.; Coelho, P.; de Melo, R. B.; Doubrawa, L.; Fernandez-Soto, A.; Ferrari, F.; Finoguenov, A.; García-Benito, R.; Iglesias-Páramo, J.; Jiménez-Teja, Y.; Kitaura, F. S.; Laur, J.; Lopes, P. A. A.; Lucatelli, G.; Martínez, V. J.; Maturi, M.; Overzier, R. A.; Pigozzo, C.; Quartin, M.; Rodríguez-Martín, J. E.; Salzano, V.; Tamm, A.; Tempel, E.; Umetsu, K.; Valdivielso, L. ; von Marttens, R.; Zitrin, A.; Díaz-Martín, M. C.; López-Alegre, G.; López-Sainz, A.; Yanes-Díaz, A.; Rueda-Teruel, F.; Rueda-Teruel, S.; Abril Ibañez, J.; L Antón Bravo, J.; Bello Ferrer, R.; Bielsa, S.; Casino, J. M.; Castillo, J.; Chueca, S.; Cuesta, L.; Garzarán Calderaro, J.; Iglesias-Marzoa, R.; Íniguez, C.; Lamadrid Gutierrez, J. L.; Lopez-Martinez, F.; Lozano-Pérez, D.; Maícas Sacristán, N.; Molina-Ibáñez, E. L.; Moreno-Signes, A.; Rodríguez Llano, S.; Royo Navarro, M.; Tilve Rua, V.; Andrade, U.; Alfaro, E. J.; Akras, S.; Arnalte-Mur, P.; Ascaso, B.; Barbosa, C. E.; Beltrán Jiménez, J.; Benetti, M.; Bengaly, C. A. P.; Bernui, A.; Blanco-Pillado, J. J.; Borges Fernandes, M.; Bregman, J. N.; Bruzual, G.; Calderone, G.; Carvano, J. M.; Casarini, L.; Chaves-Montero, J.; Chies-Santos, A. L.; Coutinho de Carvalho, G.; Dimauro, P.; Duarte Puertas, S.; Figueruelo, D.; González-Serrano, J. I.; Guerrero, M. A.; Gurung-López, S.; Herranz, D.; Huertas-Company, M.; Irwin, J. A.; Izquierdo-Villalba, D.; Kanaan, A.; Kehrig, C.; Kirkpatrick, C. C.; Lim, J.; Lopes, A. R.; Lopes de Oliveira, R.; Marcos-Caballero, A.; Martínez-Delgado, D.; Martínez-González, E.; Martínez-Somonte, G.; Oliveira, N.; Orsi, A. A.; Penna-Lima, M.; Reis, R. R. R.; Spinoso, D.; Tsujikawa, S.; Vielva, P.; Vitorelli, A. Z.; Xia, J. Q.; Yuan, H. B.; Arroyo-Polonio, A.; Dantas, M. L. L.; Galarza, C. A.; Gonçalves, D. R.; Gonçalves, R. S.; Gonzalez, J. E.; Gonzalez, A. H.; Greisel, N.; Jiménez-Esteban, F.; Landim, R. G.; Lazzaro, D.; Magris, G.; Monteiro-Oliveira, R.; Pereira, C. B.; Rebouças, M. J.; Rodriguez-Espinosa, J. M.; Santos da Costa, S.; Telles, E., The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will scan thousands of square degrees of the northern sky with a unique set of 56 filters using the dedicated 2:55m Javalambre Survey Telescope (JST) at the Javalambre Astrophysical Observatory. Prior to the installation of the main camera (4:2 deg2 field-of-view with 1.2 Gpixels), the JST was equipped with the JPAS-Pathfinder, a one CCD camera with a 0:3 deg2 field-of-view and plate scale of 0.23 arcsec pixel?1. To demonstrate the scientific potential of J-PAS, the JPAS-Pathfinder camera was used to perform miniJPAS, a _1 deg2 survey of the AEGIS field (along the Extended Groth Strip). The field was observed with the 56 J-PAS filters, which include 54 narrow band (FWHM _ 145 ) and two broader filters extending to the UV and the near-infrared, complemented by the u; g; r; i SDSS broad band filters. In this miniJPAS survey overview paper, we present the miniJPAS data set (images and catalogs), as we highlight key aspects and applications of these unique spectro-photometric data and describe how to access the public data products. The data parameters reach depths of magAB ' 22?23:5 in the 54 narrow band filters and up to 24 in the broader filters (5_ in a 300 aperture). The miniJPAS primary catalog contains more than 64 000 sources detected in the r band and with matched photometry in all other bands. This catalog is 99% complete at r = 23:6 (r = 22:7) mag for point-like (extended) sources. We show that our photometric redshifts have an accuracy better than 1% for all sources up to r = 22:5, and a precision of _0:3% for a subset consisting of about half of the sample. On this basis, we outline several scientific applications of our data, including the study of spatially-resolved stellar populations of nearby galaxies, the analysis of the large scale structure up to z _ 0:9, and the detection of large numbers of clusters and groups. Sub-percent redshift precision can also be reached for quasars, allowing for the study of the large-scale structure to be pushed to z 2. The miniJPAS survey demonstrates the capability of the J-PAS filter system to accurately characterize a broad variety of sources and paves the way for the upcoming arrival of J-PAS, which will multiply this data by three orders of magnitude. © 2021 EDP Sciences. All rights reserved., Funding for OAJ, UPAD, and CEFCA has been provided by the Governments of Spain and Aragon through the Fondo de Inversiones de Teruel; the Aragon Government through the Research Groups E96, E103, and E16_17R; the Spanish Ministry of Science, Innovation and Universities (MCIU/AEI/FEDER, UE) with grant PGC2018-097585-B-C21; the Spanish Ministry of Economy and Competitiveness (MINECO/FEDER, UE) under AYA2015-66211-C2-1-P, AYA2015-66211-C2-2, AYA2012-30789, and ICTS2009-14; and European FEDER funding (FCDD10-4E-867, FCDD13-4E-2685). This work has made used of CEFCA's Scientific High Performance Computing system which has been funded by the Governments of Spain and Aragon through the Fondo de Inversiones de Teruel, and the Spanish Ministry of Economy and Competitiveness (MINECO-FEDER, grant AYA2012-30789). Funding for the J-PAS project has been provided also by the Brazilian agencies FINEP, FAPESP, FAPERJ and by the National Observatory of Brazil. Additional funding was also provided by the Tartu Observatory and by the Chinese Consortium from the Academy of Sciences SB acknowledges partial support from the project PGC2018-097585-B-C22. R.A.D. acknowledges support from the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico -CNPq through BP grant 308105/2018-4, and the Financiadora de Estudos e Projetos -FINEP grants REF. 1217/13 -01.13.0279.00 and REF 0859/10 -01.10.0663.00 and also FAPERJ PRONEX grant E-26/110.566/2010 for hardware funding support for the J-PAS project through the National Observatory of Brazil and Centro Brasileiro de Pesquisas Fisicas. LRA acknowledges financial support from CNPq (306696/2018-5) and FAPESP (2015/17199-0). VMthanks CNPq (Brazil) and FAPES (Brazil) for partial financial support and the H2020 project No 888258. L.A.D.G. and K.U. acknowledge support from the Ministry of Science and Technology of Taiwan (grant MOST 106-2628-M-001-003-MY3) and from the Academia Sinica (grant AS-IA-107-M01). J.M.D. and D.H acknowledge the support of project PGC2018-101814-B-100. MQ thanks CNPq (Brazil) and FAPERJ (Brazil) for financial support. PC acknowledges financial support from FAPESP (2018/05392-8) and CNPq (310041/2018-0). AAC acknowledges support from FAPERJ (E26/203.186/2016), CNPq (304971/2016-2 and 401669/2016-5), and the Universidad de Alicante (contract UATALENTO1802). C.Q. acknowledges support from FAPESP (2015/11442-0 and 2019/067661). V.M.P. is supported by NOIRLab, which is managed by AURA under a cooperative agreement with the NSF. P.B acknowledges support from CAPES -Finance Code 001. IAA researchers acknowledge financial support from the State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award to the Instituto de Astrofisica de Andalucia (SEV-2017-0709). Authors acknowledge support from the Generalitat Valenciana project of excellence Prometeo/2020/085. RGD, GMS, JRM, RGB, EP acknowledge financial support from the project AyA2016-77846-P. TC is supported by the INFN INDARK PD51 and PRIN-MIUR 2015W7KAWC. MAR and ALM acknowledge support from the MINECO project FIS2016-78859P(AEI/FEDER, UE). ET, AT and JL acknowledge the support by ETAg grants IUT40-2 and by EU through the ERDF CoE grant TK133 and MOBTP86. CK, JMV, JIP acknowledge financial support from project AYA2016-79724C4-4P. PAAL thanks the support of CNPq (309398/2018-5). LC thanks CNPq for partial support. Y.J-T acknowledges financial support from the FAPERJ (E26/202.835/2016), and from the Horizon 2020 Marie Sklodowska-Curie grant agreement No 898633. DMD acknowledges financial support from the SFB 881 of the DFG and from the MINECO grant AYA2016-81065-C2-2. FP acknowledges support of the project PGC2018-101931-B-I00. JC acknowledges support of the project E AYA2017-88007-C3-1-P, and co-financed by the FEDER. JIGs acknowledges support of projects of reference AYA2017-88007-C3-3-P, and PGC2018-099705-B-I00 and co-financed by the FEDER. EMG and PV would like to acknowledge financial support from the project ESP2017-83921C2-1-R. GMS acknowleges financial support from a predoctoral contract, ref. PRE2018-085523 (MCIU/AEI/FSE, UE). S.C. is partially supported by CNPq. R.G.L. acknowledges CAPES (process 88881.162206/2017-01) and Alexander von Humboldt Foundation for the financial support. JSA acknowledges support from FAPERJ (E26/203.024/2017), CNP (310790/2014-0 and 400471/2014-0) and FINEP (1217/13 -01.13.0279.00 and Ref. 0859/10 -01.10.0663.00). RvM acknowledges support from CNPq. AFS, PAM, VJM and FJB acknowledge support from project AYA2016-81065-C2-2. PAM acknowledges support from the "Subprograma Atraccio de Talent -Contractes Postdoctorals de la Universitat de Valencia". ESC acknowledges support from CNPq (308539/20184) and FAPESP (2019/19687-2). CMdO acknowledges support from CNPq (grant 312333/2014-5) and FAPESP (grant 2009/54202-8). LSJ acknowledges support from CNPq (grant 304819/2017-4) and FAPESP (grant 2012/008004). JMC acknowledges support from CNPq (grant 310727/2016-2). C.H.-M. and N. Greisel also acknowledge the support of the European Union via the Career Integration Grant CIG-PCIG9-GA-2011-294183. JJBP and AMC would like to acknowledge the support from the grant PGC2018-094626-B-C21 and the Basque Government grant IT-979-16. AMC acknowledges the postdoctoral contract from the University of the Basque Country UPV/EHU "Especializacioon de personal investigador doctor" program. MLLD acknowledges CAPES -Finance Code 001; and CNPq (142294/2018-7). GB acknowledges financial support from the UNAM through grant DGAPA/PAPIIT IG100319, from CONACyT through grant CB2015-252364, and from FAPESP projects 2017/02375-2 and 2018/05392-8. M.J. Reboucas acknowledges the support of FAPERJ under a CNE E-26/202.864/2017 grant, and CNPq. Support by CNPq (305409/2016-6) and FAPERJ (E-26/202.841/2017) is acknowledged by DL. AB acknowledges a CNPq fellowship. C.A.G.acknowledges support from CAPES. EA acknowledges support from FAPESP (2011/18729-1). AC acknowledges support from PNPD/CAPES. ABA and FSK acknowledge the Severo Ochoa program SEV-2015-0548. FSK also thanks the AYA2017-89891-P and the RYC2015-18693 grants. DF acknowledges support from the Atraccion del Talento Cientifico en Salamanca programme and the project PGC2018-096038B-I00.
Published: 2020
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8. Sudden branch macular artery avulsion during internal limiting membrane peeling for idiopathic macular hole: A case report

Author: J H, Gonzalez-Cortes, A B, Treviño-Herrera, J E, Gonzalez-Cantu, A, Sudhalkar, S E, Hernandez-Da Mota, and J, Mohamed-Hamsho
Subjects: Surgery
Abstract: Macular Holes (MH) are variable thickness openings of the retina that develop in the fovea. This case presents a branch macular artery avulsion during internal limiting membrane (ILM) peeling for idiopathic macular hole management in an adult patient. The proper management of this complication along with the preventive measures is mentioned.A 65-year-old woman developed a branch macular artery avulsion during ILM peeling for MH. After cataract extraction by phacoemulsification with intraocular lens implantation and pars plana vitrectomy, during ILM peeling, a multifocal bleeding along a macular artery was noted indicating its avulsion. The intraocular pressure was raised to control hemorrhage, blood remnants were passively aspirated and ILM peeling was kindly completed under adequate visualization.Branch macular artery avulsion is a potential complication even for experienced surgeons. Proper management of this complication involves the increase of intraocular pressure for hemostasia. If hemostasia and proper visualization are achieved, the surgery could be completed, and if it is not the case, the ILM peeling could be completed in a second procedure. This complication might be avoided by initiating the ILM peeling away from the macular vessels.Branch macular artery avulsion is an intraoperative complication that might be avoided by initiating the ILM peeling away from the macular vessels.
Published: 2022
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9. Testing the consistency between cosmological data: the impact of spatial curvature and the dark energy EoS

Author: Rodrigo von Marttens, J. E. Gonzalez, Micol Benetti, and Jailson S. Alcaniz
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), media_common.quotation_subject, Cosmic microwave background, FOS: Physical sciences, Astronomy and Astrophysics, Lambda-CDM model, Astrophysics::Cosmology and Extragalactic Astrophysics, Curvature, Cosmology, Universe, Physical cosmology, Dark energy, Statistical physics, Baryon acoustic oscillations, media_common, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The results of joint analyses of available cosmological data have motivated an important debate about a possible detection of a non-zero spatial curvature. If confirmed, such a result would imply a change in our present understanding of cosmic evolution with important theoretical and observational consequences. In this paper we discuss the legitimacy of carrying out joint analyses with the currently available data sets and explore their implications for a non-flat universe and extensions of the standard cosmological model. We use a robust tension estimator to perform a quantitative analysis of the physical consistency between the latest data of Cosmic Microwave Background, type Ia supernovae, Baryonic Acoustic Oscillations and Cosmic Chronometers. We consider the flat and non-flat cases of the $\Lambda$CDM cosmology and of two dark energy models with a constant and varying dark energy EoS parameter. The present study allows us to better understand if possible inconsistencies between these data sets are significant enough to make the results of their joint analyses misleading, as well as the actual dependence of such results with the spatial curvature and dark energy parameterizations., Comment: 11 pages, 6 figures, 1 table
Published: 2021

10. Thermodynamic constraints on the dark sector

Author: W. J. C. da Silva, R. Silva, J. E. Gonzalez, and J. S. Alcaniz
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Dark matter, Cosmic microwave background, FOS: Physical sciences, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Unified Model, Type (model theory), 01 natural sciences, Laws of thermodynamics, Baryon, Theoretical physics, 0103 physical sciences, Dark energy, 010303 astronomy & astrophysics, Scale factor (cosmology), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: In this paper, we present a unified scheme based on the fluid description of the dark sector of the universe. The scheme captures models with interaction between dark energy and dark matter, being the core of generalization the time-varying equation-of-state parameter $\omega(a)$ and the time-dependent interactions through the interaction function $\epsilon(a)$, where $a$ is the scale factor. Furthermore, we propose thermodynamics constraints on this generalized class of models using the laws of thermodynamics which are combined with observational data. In order to test the observational viability of the unified model, we perform a Bayesian analysis using cosmic chronometers, type Ia supernovae, cosmic microwave background, and angular baryon acoustic oscillation measurements., Comment: 9 pages, 4 figures, 2 tables. Version accepted for publication in EPJP
Published: 2020
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11. They just took him: Impacts of immigration enforcement on U.S. citizen Latino adolsecents’ well-being

Author: E McGhee Hassrick, L Bakely, A Asadi Gonzalez, Ana P. Martinez-Donate, Christian Correa, Carmen R. Valdez, J Tellez Lieberman, Maria Gudelia Rangel, and J E Gonzalez-Fagoaga
Subjects: U.S. Citizen, media_common.quotation_subject, Political science, Immigration, Well-being, Public Health, Environmental and Occupational Health, Public administration, Enforcement, media_common
Abstract: Background Escalating interior immigration enforcement by the Trump administration threatens U.S. Latino immigrant families, yet systematic evidence is limited regarding the impacts of immigration enforcement in this community. Our study explored lived experiences of U.S.-citizen adolescents affected by various levels of immigration enforcement, including parental deportation. Methods In-depth interviews were conducted with adolescents (13-17 years old, N = 7) who experienced-or were at risk of-parental deportation as part of a larger, on-going longitudinal study. Interviews queried after their health, family life, perceived discrimination, conceptualization of today's anti-immigrant climate and, if applicable, the circumstances and impact of their parent's deportation. A preliminary qualitative analysis of the interviews was conducted. Interview summaries were created and reviewed systematically. Major themes and qualitative assertions were derived and discussed by the analytical team. Results Parental detainment/deportation was inherently violent and traumatic and had profound mental/emotional, physical, socio-cultural and economic consequences for separated adolescents as they assumed adult roles and responsibilities. The threat of deportation negatively affected the well-being of adolescents with deportable parents, resulting in increased vigilance and stress. Participants were ambivalent regarding their desire to talk about the risk of deportation or their experiences with it, as well as their own identities as Latinx citizens. They also reported feelings of isolation, discrimination and victimization related to immigration enforcement. Conclusions Anticipated and experienced parental deportation negatively affects health and well-being among U.S.-citizen adolescents. Family-friendly immigration policies, community-based interventions, and family counseling are critical to protect this vulnerable population. Key messages Following deportation, the deportee’s family—especially their U.S.-citizen adolescents—are profoundly and negatively affected. Even the threat of deportation stresses adolescents and their families and results in negative psychosocial outcomes.
Published: 2020
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12. Cosmic-Ray Database Update: Ultra-High Energy, Ultra-Heavy, and Antinuclei Cosmic-Ray Data (CRDB v4.0)

Author: Ioana Codrina Maris, Hans Peter Dembinski, F. Melot, David Maurin, J. E. Gonzalez, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)
Subjects: lcsh:QC793-793.5, High energy, Ajax, neutron star: binary, 010504 meteorology & atmospheric sciences, nucleus: UHE, databases, WIMP, air, FOS: Physical sciences, General Physics and Astronomy, Cosmic ray, computer.software_genre, 01 natural sciences, KASCADE, astroparticle, cosmic rays, PAMELA, 0103 physical sciences, Web page, quantum chromodynamics, AMS, structure, cosmic radiation: UHE, antinucleus: cosmic radiation, capture, 010303 astronomy & astrophysics, Monte Carlo, 0105 earth and related environmental sciences, computer.programming_language, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Database, showers: atmosphere, cosmic radiation: spectrum, lcsh:Elementary particle physics, solar, anti-p, TheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGES, 13. Climate action, DAMPE, upgrade, data management, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, computer, cosmic radiation: flux, Charged species
Abstract: We present an update on CRDB, the cosmic-ray database for charged species. CRDB is based on MySQL, queried and sorted by jquery and table-sorter libraries, and displayed via PHP web pages through the AJAX protocol. We review the modifications made on the structure and outputs of the database since the first release (Maurin et al., 2014). For this update, the most important feature is the inclusion of ultra-heavy nuclei ( Z &gt, 30 ), ultra-high energy nuclei (from 10 15 to 10 20 eV), and limits on antinuclei fluxes ( Z ≤ − 1 for A &gt, 1 ), more than 100 experiments, 350 publications, and 40,000 data points are now available in CRDB. We also revisited and simplified how users can retrieve data and submit new ones. For questions and requests, please contact crdb@lpsc.in2p3.fr.
Published: 2020
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13. A model-independent reconstruction of dark sector interactions

Author: Luciano Casarini, J. E. Gonzalez, Valerio Marra, Jailson S. Alcaniz, and Rodrigo von Marttens
Subjects: Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Null (mathematics), Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Type (model theory), 01 natural sciences, Cosmology, Redshift, 0103 physical sciences, Dark energy, Baryon acoustic oscillations, 010303 astronomy & astrophysics, Energy (signal processing), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Relaxing the conventional assumption of a minimal coupling between the dark matter (DM) and dark energy (DE) fields introduces significant changes in the predicted evolution of the Universe. Therefore, testing such a possibility constitutes an essential task not only for cosmology but also for fundamental physics. In a previous communication [Phys. Rev. D99, 043521, 2019], we proposed a new null test for the $\Lambda$CDM model based on the time dependence of the ratio between the DM and DE energy densities which is also able to detect potential signatures of interaction between the dark components. In this work, we extend that analysis avoiding the $ \Lambda$CDM assumption and reconstruct the interaction in the dark sector in a fully model-independent way using data from type Ia supernovae, cosmic chronometers and baryonic acoustic oscillations. According to our analysis, the $\Lambda$CDM model is consistent with our model-independent approach at least at $3\sigma$ CL over the entire range of redshift studied. On the other hand, our analysis shows that the current background data do not allow us to rule out the existence of an interaction in the dark sector. Finally, we present a forecast for next-generation LSS surveys. In particular, we show that Euclid and SKA will be able to distinguish interacting models with about 4\% of precision at $z\approx 1$., Comment: 12 pages, 7 figures. Accepted for publication in Physical Review D
Published: 2020
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14. An estimate of the dark matter density from galaxy clusters and supernovae data

Author: J. S. Alcaniz, J. E. Gonzalez, R. S. Gonçalves, and R. F. L. Holanda
Subjects: Physics, Supernova, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Dark matter, FOS: Physical sciences, Astronomy and Astrophysics, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Galaxy cluster, General Relativity and Quantum Cosmology, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: In this paper, we discuss a model-independent way to obtain the present dark matter density parameter ($\Omega_{\rm{c,0}}$) by combining gas mass fraction measurements in galaxy clusters ($f_{gas}$), type Ia supernovae (SNe Ia) observations and measurements of the cosmic baryon abundance from observations of absorption systems at high redshifts. Our estimate is $\Omega_{\rm{c,0}} = 0.244 \pm 0.013$ ($1\sigma$). By considering the latest local measurement of the Hubble constant, we obtain $\Omega_{\rm{M,0}} = 0.285 \pm 0.013$ ($1\sigma$) for the total matter density parameter. We also investigate departures of the evolution of the dark matter density with respect to the usual $a^{-3}$ scaling, as usual in interacting models of dark matter and dark energy. As the current data cannot confirm or rule out such an interaction, we perform a forecast analysis to estimate the necessary improvements in number and accuracy of upcoming $f_{gas}$ and SNe Ia observations to detect a possible non-minimal coupling in the cosmological dark sector., Comment: JCAP Accepted, 7 pages, 4 figures
Published: 2019

15. Null test for interactions in the dark sector

Author: Luciano Casarini, J. E. Gonzalez, Jailson S. Alcaniz, Valerio Marra, and Rodrigo von Marttens
Subjects: Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Cold dark matter, 010308 nuclear & particles physics, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Astrophysics::Cosmology and Extragalactic Astrophysics, Lambda, 01 natural sciences, Cosmology, Redshift, General Relativity and Quantum Cosmology, Baryon, Supernova, 0103 physical sciences, Dark energy, Baryon acoustic oscillations, 010306 general physics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Since there is no known symmetry in Nature that prevents a non-minimal coupling between the dark energy (DE) and cold dark matter (CDM) components, such a possibility constitutes an alternative to standard cosmology, with its theoretical and observational consequences being of great interest. In this paper we propose a new null test on the standard evolution of the dark sector based on the time dependence of the ratio between the CDM and DE energy densities which, in the standard $\Lambda$CDM scenario, scales necessarily as $a^{-3}$. We use the latest measurements of type Ia supernovae, cosmic chronometers and angular baryonic acoustic oscillations to reconstruct the expansion history using model-independent Machine Learning techniques, namely, the Linear Model formalism and Gaussian Processes. We find that while the standard evolution is consistent with the data at $3\sigma$ level, some deviations from the $\Lambda$CDM model are found at low redshifts, which may be associated with the current tension between local and global determinations of $H_0$., Comment: 15 pages, 12 figures
Published: 2018

16. Arrays of Optical Fibers as Detectors of Cracks in Brick Structural Elements

Author: Y.V. Vountesmery, J. E. Gonzalez-Tinoco, Sergei N. Khotiaintsev, Maria del Carmen Lopez-Bautista, and Vladimir Timofeyev
Subjects: Brick, Materials science, Optical transmitter, Multi-mode optical fiber, Optical fiber, 010401 analytical chemistry, Detector, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, law.invention, All optical, Transmission (telecommunications), law, Fracture (geology), Composite material, 0210 nano-technology
Abstract: We describe an experiment to access the onset of cracks in brick structural elements by means of arrays of the optical fibers attached to the surface of the elements. The opening of a crack leads to the fracture of the optical fiber that crosses the crack, thus witnessing its appearance. The detection of cracks of a width of about 1 mm was successfully conducted with the communications-grade multimode silica optical fibers. The optical transmission of all optical fibers of the array was continuously monitored by means of the multichannel optical transmitter and receiver. Our results demonstrate that the optical fibers served as reliable indicators of structural damage in form of cracks to brick masonry. We consider some practical aspects of implementing this method for monitoring the appearance of cracks in brick masonry buildings, which present structural risks.
Published: 2018
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17. Reconstruction of cosmological matter perturbations in Modified Gravity

Author: J. E. Gonzalez
Subjects: Physics, Particle physics, Gravity (chemistry), Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, General relativity, FOS: Physical sciences, Order (ring theory), Quasar, General Relativity and Quantum Cosmology (gr-qc), Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Omega, General Relativity and Quantum Cosmology, Theoretical physics, 0103 physical sciences, Dark energy, Density contrast, Constant (mathematics), 010303 astronomy & astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The analysis of perturbative quantities is a powerful tool to distinguish between different Dark Energy models and gravity theories degenerated at the background level. In this work, we generalise the integral solution of the matter density contrast for General Relativity gravity to a wide class of Modified Gravity (MG) theories. To calculate this solution is necessary prior knowledge of the Hubble rate, the density parameter at the present epoch ($\Omega_{m0}$) and the functional form of the effective Newton's constant that characterises the gravity theory. We estimate in a model-independent way the Hubble expansion rate by applying a non-parametric reconstruction method to model-independent cosmic chronometer data and high-$z$ quasar data. In order to compare our generalised solution of the matter density contrast, using the non-parametric reconstruction of $H(z)$ from observational data, with purely theoretical one, we choose a parameterisation of the Screened MG and the $\Omega_{m0}$ from WMAP-9 collaborations. Finally, we calculate the growth index for the analysed cases, finding very good agreement between theoretical values and the obtained ones using the approach presented in this work., Comment: 8 pages, 3 figures
Published: 2017

18. Smoothing expansion rate data to reconstruct cosmological matter perturbations

Author: J. E. Gonzalez, Jailson S. Alcaniz, and J. C. Carvalho
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, General relativity, Null (mathematics), FOS: Physical sciences, Sigma, Shape of the universe, Astronomy and Astrophysics, General Relativity and Quantum Cosmology (gr-qc), Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Cosmology, General Relativity and Quantum Cosmology, Metric expansion of space, symbols.namesake, 0103 physical sciences, Dark energy, symbols, Planck, 010303 astronomy & astrophysics, Mathematical physics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The existing degeneracy between different dark energy and modified gravity cosmologies at the background level may be broken by analysing quantities at the perturbative level. In this work, we apply a non-parametric smoothing (NPS) method to reconstruct the expansion history of the Universe ($H(z)$) from model-independent cosmic chronometers and high-$z$ quasar data. Assuming a homogeneous and isotropic flat universe and general relativity (GR) as the gravity theory, we calculate the non-relativistic matter perturbations in the linear regime using the $H(z)$ reconstruction and realistic values of $\Omega_{m0}$ and $\sigma_8$ from Planck and WMAP-9 collaborations. We find a good agreement between the measurements of the growth rate and $f\sigma_8(z)$ from current large-scale structure observations and the estimates obtained from the reconstruction of the cosmic expansion history. Considering a recently proposed null test for GR using matter perturbations, we also apply the NPS method to reconstruct $f\sigma_8(z)$. For this case, we find a $\sim 2\sigma$ tension (good agreement) with the standard relativistic cosmology when the Planck (WMAP-9) priors are used., Comment: 9 pages, 6 figures, LaTeX
Published: 2017

19. Cosmological constraints on the gas depletion factor in galaxy clusters

Author: V. C. Busti, J. E. Gonzalez, F. Andrade-Santos, R. F. L. Holanda, and Jailson S. Alcaniz
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Gas depletion, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Type (model theory), 01 natural sciences, Cosmology, Redshift, Supernova, 0103 physical sciences, 010303 astronomy & astrophysics, Luminosity distance, Mass fraction, Galaxy cluster, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The evolution of the X-ray emitting gas mass fraction ($f_{gas}$) in massive galaxy clusters can be used as an independent cosmological tool to probe the expansion history of the Universe. Its use, however, depends upon a crucial quantity, i.e., the depletion factor $\gamma$, which corresponds to the ratio by which $f_{gas}$ is depleted with respect to the universal baryonic mean. This quantity is not directly observed and hydrodynamical simulations performed in a specific cosmological model (e.g., a flat $\Lambda$CDM cosmology) have been used to calibrate it. In this work, we obtain for the first time self-consistent observational constraints on the gas depletion factor combining 40 X-ray emitting gas mass fraction measurements and luminosity distance measurements from type Ia supernovae. Using Gaussian Processes to reconstruct a possible redshift evolution of $\gamma$, we find no evidence for such evolution, which confirms the current results from hydrodynamical simulations. Moreover, our constraints on $\gamma$ can be seen as a data prior for cosmological analyses on different cosmological models. The current measurements are systematic limited, so future improvements will depend heavily on a better mass calibration of galaxy clusters and their measured density profiles., Comment: 7 pages, 2 figure, 1 table, JCAP Accepted
Published: 2017
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20. Surface muons in IceTop

Author: Hans Peter Dembinski and J. E. Gonzalez
Subjects: Surface (mathematics), Nuclear physics, Physics, Muon
Published: 2016
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21. Specialized optical fibre sensor array for structural damage detection

Author: E. Ovando-Shelley, J. E. Gonzalez-Tinoco, J. Miron-Carrasco, D. M. Martinez-Gonzalez, Maria del Carmen Lopez-Bautista, H. J. Guzman-Olguin, M. A. Zuniga Bravo, A. R. Sanchez-Ramirez, and Sergei N. Khotiaintsev
Subjects: Optical fiber, Materials science, genetic structures, business.industry, Optical cross-connect, 02 engineering and technology, Optical performance monitoring, 021001 nanoscience & nanotechnology, 01 natural sciences, eye diseases, law.invention, Structural element, 010309 optics, law, 0103 physical sciences, Electronic engineering, Fiber optic splitter, Optoelectronics, sense organs, Structural health monitoring, 0210 nano-technology, business, Optical attenuator, Optical add-drop multiplexer
Abstract: We describe a sensor system for damage detection in concrete structures after extreme events such as earthquakes. The system employs large array of optical fibres (up to 256 fibres) that are either embedded in, or bonded to the surface of the structural element or elements under test. A structural damage (cracks or complete failure) results in breaking of one or several optical fibres and sharp decrease in their optical transmission. The fibres are interrogated using a matrix-type optical fibre circuit with 16 optical transmitters and 16 optical receivers that operate in the TDM mode. This type of system can be used for monitoring of large arrays of other intensity-type optical sensors.
Published: 2016
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22. Non-parametric reconstruction of cosmological matter perturbations

Author: J. E. Gonzalez, Jailson S. Alcaniz, and J. C. Carvalho
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, media_common.quotation_subject, Cosmic microwave background, FOS: Physical sciences, Astronomy and Astrophysics, Cosmological constant, Astrophysics::Cosmology and Extragalactic Astrophysics, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, General Relativity and Quantum Cosmology, Redshift, Cosmology, Universe, Metric expansion of space, Gravitation, Theoretical physics, 0103 physical sciences, Dark energy, 010303 astronomy & astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, media_common
Abstract: Perturbative quantities, such as the growth rate ($f$) and index ($\gamma$), are powerful tools to distinguish different dark energy models or modified gravity theories even if they produce the same cosmic expansion history. In this work, without any assumption about the dynamics of the Universe, we apply a non-parametric method to current measurements of the expansion rate $H(z)$ from cosmic chronometers and high-$z$ quasar data and reconstruct the growth factor and rate of linearised density perturbations in the non-relativistic matter component. Assuming realistic values for the matter density parameter $\Omega_{m0}$, as provided by current CMB experiments, we also reconstruct the evolution of the growth index $\gamma$ with redshift. We show that the reconstruction of current $H(z)$ data constrains the growth index to $\gamma=0.56 \pm 0.12$ (2$\sigma$) at $z = 0.09$, which is in full agreement with the prediction of the $\Lambda$CDM model and some of its extensions., Comment: 7 pages, 5 figures, LaTeX
Published: 2016
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23. HIV Prevention among Mexican Migrants at Different Migration Phases: Exposure to Prevention Messages and Association With Testing Behaviors

Author: J E Gonzalez-Fagoaga, Natalie Rhoads, Maria Gudelia Rangel, Ana P. Martinez-Donate, A Asadi Gonzalez, Simon Nj, and Xiao Zhang
Subjects: Adult, Male, Health Knowledge, Attitudes, Practice, Health (social science), Adolescent, Population, Human immunodeficiency virus (HIV), Developing country, HIV Infections, Hiv testing, Hiv risk, medicine.disease_cause, Article, Odds, Interviews as Topic, Risk Factors, Environmental health, Surveys and Questionnaires, Mexican Americans, medicine, Humans, Mass Screening, education, Mexico, Transients and Migrants, education.field_of_study, business.industry, Public Health, Environmental and Occupational Health, virus diseases, Middle Aged, United States, Infectious Diseases, Cross-Sectional Studies, Socioeconomic Factors, Population Surveillance, Health education, Female, business, Developed country
Abstract: Mobile populations are at increased risk for HIV infection. Exposure to HIV prevention messages at all phases of the migration process may help decrease im/migrants’ HIV risk. We investigated levels of exposure to HIV prevention messages, factors associated with message exposure, and the association between exposure to prevention messages and HIV testing behavior among Mexican im/migrants at different phases of the migration process. We conducted a cross-sectional, probability survey of Mexican im/migrants (N=3,149) traveling through the border city of Tijuana, Mexico. The results indicate limited exposure to prevention messages (57%–75%) and suboptimal last 12-month HIV testing rates (14%–25%) across five migration phases. Compared to pre-departure levels (75%), exposure to messages decreases at all post-departure migration phases (57%–63%, p
Published: 2015

24. Reduced light transmission in an optical fiber embedded in a reinforced concrete beam under flexural loading

Author: M. A. Zuñiga-Bravo, J. E. Gonzalez-Tinoco, H. J. Guzman-Olguin, Sergei N. Khotiaintsev, and Maria del Carmen Lopez-Bautista
Subjects: Optical fiber, Materials science, Applied Mathematics, Bent molecular geometry, General Engineering, Physics::Optics, Deformation (meteorology), Atomic and Molecular Physics, and Optics, law.invention, Computational Mathematics, Flexural strength, Fiber optic sensor, law, Physics::Accelerator Physics, Light beam, Composite material, Beam (structure), Shrinkage
Abstract: The cause for the decrease in light transmission in optical fibers embedded in reinforced concrete beams with flexural deformation was investigated. It was determined that optical fibers in such beams have multiple bends as a result of chaotic movement of gravel particles during the shrinkage of the concrete mixture. The results of field and model experiments are presented, which indicate that the probable reasons for the decrease in light transmission in optical fibers embedded in reinforced concrete beams, observed when the latter are bent, are local changes in the parameters of the optical fibers in regions with sharp bends accompanying beam deformation.
Published: 2018
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25. Variational method for calculating the binding energy of the base state of an impurity D- centered on a quantum dot of GaAs-Ga1-xAlxAs

Author: F. Durán-Flórez, J. E. Gonzalez, and L. C. Caicedo
Subjects: Physics, History, Variational method, Impurity, Quantum dot, Binding energy, State (functional analysis), Base (exponentiation), Molecular physics, Computer Science Applications, Education
Published: 2018
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26. Constructing a cosmological model-independent Hubble diagram of type Ia supernovae with cosmic chronometers

Author: Hongwei Yu, J. E. Gonzalez, Zhengxiang Li, Zong-Hong Zhu, and J. S. Alcaniz
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Cepheid variable, FOS: Physical sciences, Astrophysics, General Relativity and Quantum Cosmology (gr-qc), Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Redshift, Galaxy, General Relativity and Quantum Cosmology, Supernova, symbols.namesake, 0103 physical sciences, symbols, 010303 astronomy & astrophysics, Luminosity distance, Gaussian process, Smoothing, Astrophysics::Galaxy Astrophysics, Hubble's law, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We apply two methods, namely the Gaussian processes and the non-parametric smoothing procedure, to reconstruct the Hubble parameter $H(z)$ as a function of redshift from 15 measurements of the expansion rate obtained from age estimates of passively evolving galaxies. These reconstructions enable us to derive the luminosity distance to a certain redshift $z$, calibrate the light-curve fitting parameters accounting for the (unknown) intrinsic magnitude of type Ia supernova (SNe Ia) and construct cosmological model-independent Hubble diagrams of SNe Ia. In order to test the compatibility between the reconstructed functions of $H(z)$, we perform a statistical analysis considering the latest SNe Ia sample, the so-called JLA compilation. We find that, for the Gaussian processes, the reconstructed functions of Hubble parameter versus redshift, and thus the following analysis on SNe Ia calibrations and cosmological implications, are sensitive to prior mean functions. However, for the non-parametric smoothing method, the reconstructed functions are not dependent on initial guess models, and consistently require high values of $H_0$, which are in excellent agreement with recent measurements of this quantity from Cepheids and other local distance indicators., 10 pages, 3 figures, Latex (Accepted for publication in Physical Review D)
Published: 2015

27. Monitoring of transverse displacement of reinforced concrete beams under flexural loading with embedded arrays of optical fibers

Author: J. E. Gonzalez-Tinoco, Sergei N. Khotiaintsev, Héctor Guzmán-Olguín, Enrique R. Gomez-Rosas, and Miguel A. Zuñiga-Bravo
Subjects: Transverse plane, Multi-mode optical fiber, Materials science, Fabrication, Optical fiber, Flexural strength, law, Transmittance, Physics::Optics, Fiber, Structural health monitoring, Composite material, law.invention
Abstract: We present results of an ongoing study of structural health monitoring of concrete elements by means of arrays of telecommunications-grade optical fibers embedded in such elements. In this work, we show a possibility of using this technique for monitoring the transverse displacement of the reinforced concrete beams under flexural loading. We embedded a number of multimode silica-core/polymer-clad/polymer-coated optical fibers in a mold with preinstalled reinforcing steel bars and fresh concrete mix. Then the concrete was compacted and cured. Some optical fibers were broken during the fabrication process. The fiber survival rate varied with concrete grade, compacting technique and optical fiber type. The fibers that survived the fabrication process were employed for the monitoring. They were connected to the optical transmitter and receiver that formed a part of a larger measurement system. The system continuously measured the optical transmission of all optical fibers while the reinforced concrete beams were subjected to incremental transverse loading. We observed a quasi-linear decrease in optical transmission in all optical fibers of the array vs. the applied load and respective flexural displacement. Although the underlying phenomena that lead to such a variation in optical transmission are not clear yet, the observed behavior might be of interest for assessing the transverse displacement of the reinforced concrete beams under flexural loading.
Published: 2015
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28. The Lyman alpha reference sample. IV. Morphology at low and high redshift

Author: L. Guaita, J. Melinder, M. Hayes, G. Östlin, J. E. Gonzalez, G. Micheva, A. Adamo, J. M. Mas-Hesse, A. Sandberg, H. Otí-Floranes, D. Schaerer, A. Verhamme, E. Freeland, I. Orlitová, P. Laursen, J. M. Cannon, F. Duval, T. Rivera-Thorsen, E. C. Herenz, D. Kunth, H. Atek, J. Puschnig, P. Gruyters, S. A. Pardy, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), and Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Absolute magnitude, Physics, Stellar mass, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Physics::Instrumentation and Detectors, Hubble Deep Field, Continuum (design consultancy), FOS: Physical sciences, Astronomy and Astrophysics, galaxies: starburst, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Astrophysics - Astrophysics of Galaxies, Redshift, Galaxy, Statistics::Computation, Interstellar medium, Space and Planetary Science, techniques: imaging spectroscopy, [SDU]Sciences of the Universe [physics], Astrophysics of Galaxies (astro-ph.GA), galaxies: star formation, Surface brightness, Astrophysics::Galaxy Astrophysics
Abstract: We measured the sizes and morphological parameters of LARS galaxies in the continuum, Lya, and Ha images. We studied morphology by using the Gini coefficient vs M20 and asymmetry vs concentration diagrams. We then simulated LARS galaxies at z~2 and 5.7, performing the same morphological measurements. We also investigated the detectability of LARS galaxies in current deep field observations. The subsample of LAEs within LARS (LARS-LAEs) was stacked to provide a comparison to stacking studies performed at high redshift. LARS galaxies have continuum size, stellar mass, and rest-frame absolute magnitude typical of Lyman break analogues in the local Universe and also similar to 2, Comment: Accepted date: Dec 19th, 2014. arXiv admin note: text overlap with arXiv:astro-ph/0311352
Published: 2015
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29. J/Ψ measurements in Au + Au and p + p collisions at

Author: J E Gonzalez and the STAR Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, Quarkonium, Hadronization, Gluon, J/psi meson, Nuclear physics, Quark–gluon plasma, High Energy Physics::Experiment, Nuclear Experiment
Abstract: In a system of deconfined quarks and gluons heavy quarkonium states are expected to be the subject of dissociation via static mechanisms such as colour screening or dynamic mechanisms such as gluon scatterings. This leads to a suppression of hidden charm states, such as J/ψ. On the other hand, statistical hadronization models predict an enhanced production of hidden charm states for sufficiently high charm densities. We present first preliminary STAR results on J/ψ production via the reconstruction of electron–positron decay pairs in p + p and Au + Au collisions at . The implications of our measurements to models that predict copious J/ψ production via statistical hadronization are discussed.
Published: 2006
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30. Transverse-momentumptcorrelations on (η, phi) from mean-ptfluctuations in Au–Au collisions at GeV

Author: STAR Collaboration, J Adams, M M Aggarwal, Z Ahammed, J Amonett, B D Anderson, D Arkhipkin, G S Averichev, S K Badyal, Y Bai, J Balewski, O Barannikova, L S Barnby, J Baudot, S Bekele, V V Belaga, A Bellingeri-Laurikainen, R Bellwied, J Berger, B I Bezverkhny, S Bharadwaj, A Bhasin, A K Bhati, V S Bhatia, H Bichsel, J Bielcik, J Bielcikova, A Billmeier, L C Bland, C O Blyth, S-L Blyth, B E Bonner, M Botje, A Boucham, J Bouchet, A V Brandin, A Bravar, M Bystersky, R V Cadman, X Z Cai, H Caines, M Calderón de la Barca Sánchez, J Castillo, O Catu, D Cebra, Z Chajecki, P Chaloupka, S Chattopadhyay, H F Chen, J H Chen, Y Chen, J Cheng, M Cherney, A Chikanian, H A Choi, W Christie, J P Coffin, T M Cormier, M R Cosentino, J G Cramer, H J Crawford, D Das, S Das, M Daugherity, M M de Moura, T G Dedovich, M DePhillips, A A Derevschikov, L Didenko, T Dietel, S M Dogra, W J Dong, X Dong, J E Draper, F Du, A K Dubey, V B Dunin, J C Dunlop, M R Dutta Mazumdar, V Eckardt, W R Edwards, L G Efimov, V Emelianov, J Engelage, G Eppley, B Erazmus, M Estienne, P Fachini, J Faivre, R Fatemi, J Fedorisin, K Filimonov, P Filip, E Finch, V Fine, Y Fisyak, K S F Fornazier, J Fu, C A Gagliardi, L Gaillard, J Gans, M S Ganti, F Geurts, V Ghazikhanian, P Ghosh, J E Gonzalez, H Gos, O Grachov, O Grebenyuk, D Grosnick, S M Guertin, Y Guo, A Gupta, N Gupta, T D Gutierrez, T J Hallman, A Hamed, D Hardtke, J W Harris, M Heinz, T W Henry, S Hepplemann, B Hippolyte, A Hirsch, E Hjort, G W Hoffmann, M J Horner, H Z Huang, S L Huang, E W Hughes, T J Humanic, G Igo, A Ishihara, P Jacobs, W W Jacobs, M Jedynak, H Jiang, P G Jones, E G Judd, S Kabana, K Kang, M Kaplan, D Keane, A Kechechyan, V Yu Khodyrev, B C Kim, J Kiryluk, A Kisiel, E M Kislov, J Klay, S R Klein, D D Koetke, T Kollegger, M Kopytine, L Kotchenda, K L Kowalik, M Kramer, P Kravtsov, V I Kravtsov, K Krueger, C Kuhn, A I Kulikov, A Kumar, R Kh Kutuev, A A Kuznetsov, M A C Lamont, J M Landgraf, S Lange, F Laue, J Lauret, A Lebedev, R Lednicky, C-H Lee, S Lehocka, M J LeVine, C Li, Q Li, Y Li, G Lin, S J Lindenbaum, M A Lisa, F Liu, H Liu, J Liu, L Liu, Q J Liu, Z Liu, T Ljubicic, W J Llope, H Long, R S Longacre, M Lopez-Noriega, W A Love, Y Lu, T Ludlam, D Lynn, G L Ma, J G Ma, Y G Ma, D Magestro, S Mahajan, D P Mahapatra, R Majka, L K Mangotra, R Manweiler, S Margetis, C Markert, L Martin, J N Marx, H S Matis, Yu A Matulenko, C J McClain, T S McShane, F Meissner, Yu Melnick, A Meschanin, M L Miller, N G Minaev, C Mironov, A Mischke, D K Mishra, J Mitchell, B Mohanty, L Molnar, C F Moore, D A Morozov, M G Munhoz, B K Nandi, S K Nayak, T K Nayak, J M Nelson, P K Netrakanti, V A Nikitin, L V Nogach, S B Nurushev, G Odyniec, A Ogawa, V Okorokov, M Oldenburg, D Olson, S K Pal, Y Panebratsev, S Y Panitkin, A I Pavlinov, T Pawlak, T Peitzmann, V Perevoztchikov, C Perkins, W Peryt, V A Petrov, S C Phatak, R Picha, M Planinic, J Pluta, and N Porile
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Pseudorapidity, 0103 physical sciences, Transverse momentum, Dissipative system, High Energy Physics::Experiment, Parton, Nuclear Experiment, 010306 general physics, 01 natural sciences
Abstract: We present first measurements of the pseudorapidity and azimuth $(\eta,\phi)$ bin-size dependence of event-wise mean transverse momentum $ $ fluctuations for Au-Au collisions at $\sqrt{s_{NN}} = 200$ GeV. We invert that dependence to obtain $p_t$ autocorrelations on differences $(\eta_\Delta,\phi_\Delta)$ interpreted to represent velocity/temperature distributions on ($\eta,\phi$). The general form of the autocorrelations suggests that the basic correlation mechanism is parton fragmentation. The autocorrelations vary strongly with collision centrality, which suggests that fragmentation is strongly modified by a dissipative medium in the more central Au-Au collisions relative to peripheral or p-p collisions. \\
Published: 2006
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31. ϕ meson production in Au+Au and p+p collisions at sNN=200GeV

Author: W. Christie, A. H. Tang, A. I. Kulikov, Guy Paic, A. Chikanian, S. S. Shimanskii, W. M. Zhang, E. Sugarbaker, G. Rakness, Andrey Vasiliev, M. Shao, D. K. Mishra, A. Boucham, R. N. Singaraju, A. P. Meschanin, Janet Elizabeth Seger, F. Meissner, E. G. Judd, D. Arkhipkin, E. Yamamoto, S. Bekele, M. Heinz, Lee Stuart Barnby, Manish Sharma, J. Balewski, D. A. Morozov, Marie Germain, Rashmi Raniwala, Claude Andre Pruneau, A. Ishihara, Michal Sumbera, G. Renault, C. Suire, T. Ullrich, A. S. Hirsch, R. Wells, S. V. Razin, M. R. Dutta Majumdar, A. Lebedev, L. Gaudichet, J. Kiryluk, A. Ridiger, V. Faine, A. N. Zubarev, N. Schmitz, Thorsten Sven Kollegger, E. Shahaliev, H. Jiang, M. M. de Moura, J. C. Webb, P. Kravtsov, C. Adler, R. Zoulkarneev, J. Castillo, S. W. Wissink, Z. Xu, A. Stolpovsky, S. Heppelmann, D. Flierl, W. A. Love, Sergey Voloshin, M. Botje, Jay Roberts, B. E. Bonner, Adam Ryszard Kisiel, Vladimir Petrov, C-Q. Li, Basanta Kumar Nandi, K. J. Foley, B. D. Anderson, L. Martin, P. Seyboth, Jeffrey G. Reid, S. Kabana, I. Sakrejda, J. Sowinski, M. Vznuzdaev, Anik Gupta, R. V. Cadman, R. S. Longacre, L. Kotchenda, D. D. Koetke, P. Fachini, R. P. Scharenberg, O. D. Tsai, C. L. Kunz, J. E. Draper, Jianhong Wu, Hao-Ze Chen, C. J. McClain, M. Calderon De La Barca Sanchez, H. S. Matis, H. J. Crawford, C. F. Moore, S. P. Chernenko, Z. P. Zhaomin, M. L. Miller, Frank Jm Geurts, J. P. Coffin, W. J. Llope, Q. J. Liu, J. Baudot, Debasish Das, Raghunath Sahoo, M. Guedon, A. M. VanderMolen, C. A. Whitten, J. H. Thomas, J. E. Gonzalez, Bedangadas Mohanty, O. V. Rogachevski, Marcelo Gameiro Munhoz, D. J. Prindle, R. L. Ray, E. Potrebenikova, P. Szarwas, G. Igo, Vitaly Okorokov, M. J. Mora-Corral, W. W. Jacobs, J. Lauret, G. Eppley, D. Reichhold, Y. V. Zanevski, Xu Cai, C. Roy, J. Zoulkarneeva, Julien Faivre, A. K. Dubey, A. I. Pavlinov, S. Mahajan, B. Yuting, W. T. Waggoner, F. Liu, M. B. Tonjes, Q. Li, A. V. Brandin, Souvik Das, Pawan Kumar Netrakanti, R. Witt, R. Fatemi, S. Lange, L. Molnar, V. Morozov, J. Pluta, Peter Martin Jacobs, S. R. Klein, S. J. Lindenbaum, A. Klyachko, H. Zhang, V. Yu Khodyrev, T. Ljubicic, K. Schweda, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, O. Barannikova, D. L. Olson, S. E. Vigdor, C. A. Gagliardi, H. Caines, Sudhir Raniwala, N.D. Gagunashvili, N. Xu, M. Lopez-Noriega, H. Ward, P. Filip, T. D. Gutierrez, K. Krueger, B. K. Srivastava, I. M. Vasilevski, Christian Claude Kuhn, A. Rose, R. E. Tribble, Madan M. Aggarwal, Yaguo Wang, D. Hardtke, Fuqiang Wang, R. D. Majka, Sevil Salur, P. Chaloupka, B. Lasiuk, M. A. C. Lamont, Sukalyan Chattopadhyay, D. P. Mahapatra, J. Gans, Z. P. Zizong, S. Bhardwaj, B. Surrow, T. Dietel, A. A. Derevschikov, G. D. Westfall, S. B. Nurushev, Z. Milosevich, Mirko Planinic, M. S. Ganti, Boris Hippolyte, Z. M. Wang, M. Oldenburg, Gerald W Hoffmann, M. A. Lisa, S. Margetis, J. Schambach, Yu Chen, C. Perkins, Malgorzata Anna Janik, P. Sorensen, H. Long, W. J. Dong, C. Mironov, R. Picha, Joseph Adams, Y. Fisyak, T. Peitzmann, V. Perevoztchikov, K. Filimonov, E. W. Hughes, J. C. Dunlop, Ian Johnson, G. Van Buren, X. L. Wang, Y. Panebratsev, G. S. Averichev, D. Grosnick, G. Rai, V. I. Yurevich, T. W. Henry, V. V. Belaga, Zubayer Ahammed, M. J. LeVine, Sergey Panitkin, B. I. Bezverkhny, D. Magestro, O. A. Grachov, X. Dong, Sergey Timoshenko, M. Cherney, Z. Z. Xu, J. W. Harris, Frank Simon, A. Bravar, G. Wang, S. K. Badyal, T. D. S. Stanislaus, S. K. Pal, T. W. Ludlam, Peter Graham Jones, R. Lednický, V. A. Nikitin, J. M. Nelson, F. Retiere, Thomas Michael Cormier, G. Skoro, C. Struck, J. Takahashi, J. Putschke, N. G. Minaev, L. S. Schroeder, K. E. Shestermanov, W. Peryt, B. Erazmus, A. Tai, G. Sood, L. Didenko, J. W. Watson, J. Amonett, A. Ogawa, G. J. Kunde, P. Yepes, V. Eckardt, J. Klay, B. V.K.S. Potukuchi, V. Emelianov, A. K. Bhati, D. Keane, S. Gronstal, Shengli Huang, Thomas A. Trainor, Yu-Gang Ma, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, T. K. Nayak, L. K. Mangotra, D. Cebra, S. Trentalange, M. Estienne, R. Manweiler, Yu Melnick, H. Bichsel, G. Odyniec, H. M. Spinka, M. Potekhin, David Lynn, H. G. Ritter, A. Hamed, J. G. Ma, A. M. Poskanzer, R. Bellwied, Andre Mischke, D. Thein, L. C. Bland, M. Kopytine, J. Fu, M. Tokarev, H. H. Wieman, A. A. Kuznetsov, L. Liu, J. Engelage, John N. Wood, Premomoy Ghosh, J. M. Landgraf, Olivier Ravel, Z. Liu, M. Strikhanov, P.A. Zolnierczuk, Christina Markert, J. Sandweiss, A. Billmeier, J. G. Cramer, C. O. Blyth, M. Kramer, B. Norman, T. J. Humanic, I.A. Savin, N. T. Porile, R. Varma, Yu A. Matulenko, M. Horsley, B. Stringfellow, T. S. McShane, J. N. Marx, Y. P. Viyogi, H. Z. Huang, A. Kumar, F. Du, Alexander Kovalenko, L. V. Nogach, V. I. Kravtsov, Zhenyu Zhang, W. Shao, R.J.M. Snellings, S. C. Phatak, R. Willson, D. G. Underwood, Lijuan Ruan, T. J. Hallman, Morton Kaplan, T. J. M. Symons, V. Ghazikhanian, J. L. Romero, E. Finch, E. Hjort, J. Carroll, S. K. Nayak, F. Laue, A. Szanto de Toledo, T. Pawlak, J. Porter, R.Kh. Kutuev, J. Berger, O. G. Grebenyuk, and V. B. Dunin
Subjects: Physics, Coalescence (physics), Nuclear and High Energy Physics, Meson production, 010308 nuclear & particles physics, Phi meson, 7. Clean energy, 01 natural sciences, Central region, Spectral line, Nuclear physics, 0103 physical sciences, Transverse momentum, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: We report the STAR measurement of ϕ meson production in Au + Au and p + p collisions at s N N = 200 GeV . Using the event mixing technique, the ϕ spectra and yields are obtained at mid-rapidity for five centrality bins in Au + Au collisions and for non-singly-diffractive p + p collisions. It is found that the ϕ transverse momentum distributions from Au + Au collisions are better fitted with a single-exponential while the p + p spectrum is better described by a double-exponential distribution. The measured nuclear modification factors indicate that ϕ production in central Au + Au collisions is suppressed relative to peripheral collisions when scaled by the number of binary collisions ( 〈 N bin 〉 ) . The systematics of 〈 p t 〉 versus centrality and the constant ϕ / K − ratio versus beam species, centrality, and collision energy rule out kaon coalescence as the dominant mechanism for ϕ production.
Published: 2005
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32. An update from STAR—using strangeness to probe relativistic heavy ion collisions

Author: V. V. Belaga, V. Grigoriev, Z. Xu, Sergey Voloshin, P. Sorensen, R. L. Ray, E. Potrebenikova, M.A. Kramer, R. V. Cadman, Peter Graham Jones, K. J. Foley, F. Laue, A. Szanto de Toledo, T. Ljubicic, Jianhong Wu, H. Caines, E. Sugarbaker, T. Pawlak, V. L. Rykov, Frank Jm Geurts, L. Didenko, G. Eppley, J. Porter, I. Sakrejda, J. Balewski, J. Baudot, Claude Andre Pruneau, J. Pluta, R. Willson, D. G. Underwood, F. Meissner, A. Stolpovsky, R. Lednický, V. A. Nikitin, T. Ullrich, Y. V. Zanevski, R. Zoulkarneev, L. Kotchenda, S. Kabana, K. E. Shestermanov, Jinghui Yang, A. Lebedev, Q. J. Liu, M. M. de Moura, K. Schweda, T. J. Hallman, T. J. M. Symons, S. V. Razin, L. Gaudichet, J. Kiryluk, M. L. Miller, B. Choi, R. E. Tribble, R. S. Longacre, H. Bichsel, M. Castro, Jay Roberts, S. R. Klein, C. Struck, O. Barannikova, D. L. Olson, Gerald W Hoffmann, Yu-Gang Ma, A. Tai, P. Szarwas, J. Takahashi, J. Putschke, G. Odyniec, D. Thein, Alexander Kovalenko, O. A. Grachov, X. Dong, C. L. Kunz, C. F. Moore, J. W. Watson, A. Bravar, Joseph Adams, A. A. Derevschikov, L. V. Nogach, A. H. Tang, R.Kh. Kutuev, J. Berger, S. P. Chernenko, A. Ogawa, M. Kopytine, J. Amonett, W. J. Llope, X. L. Wang, Julien Faivre, J. Klay, V. B. Dunin, A. V. Brandin, Zhongyukun Xu, Thomas A. Trainor, A. Ridiger, Thorsten Sven Kollegger, D. Reichhold, D. Magestro, L. Ruan, V. Trofimov, M. Tokarev, A. Rose, V. Emelianov, A. I. Pavlinov, D. Keane, T. J. Humanic, R. Witt, F. Liu, M. B. Tonjes, S. Heppelmann, D. Flierl, Matthew J. Anderson, Marie Germain, R. P. Scharenberg, S. M. Guertin, S L Huang, Alexandre Alarcon Do Passo Suaide, B. Lasiuk, J. H. Thomas, H. S. Matis, L. Martin, David Lynn, H. Long, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, G. Skoro, S. E. Vigdor, G. Igo, J. Zoulkarneeva, Christian Claude Kuhn, V. Morozov, I.A. Savin, W. W. Jacobs, D. D. Koetke, V. Petrov, J. E. Draper, A. N. Zubarev, C. A. Gagliardi, E. Hjort, B. E. Bonner, J. Lauret, B. D. Anderson, O. D. Tsai, D. Hardtke, J. Fu, B. K. Srivastava, Yu Chen, R. D. Majka, N. T. Porile, M. Messer, M.M. Corral, G. S. Averichev, H. H. Wieman, J. Sowinski, S. Stanislaus, J. Marx, Z. M. Wang, M. A. Vasiliev, T. Herston, B. Surrow, S. Margetis, J. Schambach, P. Fachini, J. P. Coffin, O. V. Rogachevski, J. Gans, Boris Hippolyte, H. Ward, W. Christie, J. C. Dunlop, A. I. Kulikov, R. Manweiler, J. Carroll, P. Seyboth, Masashi Kaneta, Fuqiang Wang, H. M. Spinka, Sevil Salur, M. Oldenburg, T. Dietel, W. M. Zhang, Andrey Vasiliev, A. M. Poskanzer, Zubayer Ahammed, J. G. Ma, Y. Panebratsev, M. Shao, M. J. LeVine, V. Ghazikhanian, D. Grosnick, S. Lange, G. Rai, Janet Elizabeth Seger, A. A. Kuznetsov, V. I. Yurevich, J. L. Romero, C. P. Lansdell, Yu A. Matulenko, Frank Simon, S.J. Lindenbaum, L. S. Schroeder, E. Yamamoto, E. Finch, T W Henry, I. Zborovský, R.J.M. Snellings, B. Erazmus, R. Wells, A. P. Meschanin, M. Heinz, Lee Stuart Barnby, F. Retiere, Y. Fisyak, M. Horsley, C Whitten, Ian Johnson, N. G. Minaev, N. Xu, P. Filip, C Li, B. Stringfellow, D. Cebra, N. Schmitz, G. D. Westfall, E. Shahaliev, S. Trentalange, W. A. Love, Malgorzata Anna Janik, Yu Melnick, Marcelo Gameiro Munhoz, D. J. Prindle, H. Zhang, E. J. Stephenson, M. A. Lisa, A. Billmeier, J. G. Cramer, R. Fatemi, K. Krueger, M. Cherney, Thomas Michael Cormier, T. S. McShane, P. Nevski, J. E. Gonzalez, M. Lopez-Noriega, Adam Ryszard Kisiel, Michal Sumbera, H. J. Crawford, A. Ishihara, G. Renault, J. Engelage, C. Suire, V. Faine, John N. Wood, J. Castillo, S. W. Wissink, J. M. Landgraf, V. A. Okorokov, M. Strikhanov, G. Rakness, M. Guedon, A. M. VanderMolen, Guy Paic, E. G. Judd, A. Chikanian, S. S. Shimanskii, P.A. Zolnierczuk, Christina Markert, J. Sandweiss, Z. Liu, A. Boucham, D. Arkhipkin, S. Bekele, C. Roy, C. O. Blyth, A. Klyachko, Vladimir Tikhomirov, P. Chaloupka, B. Norman, G. Van Buren, T. W. Ludlam, J. M. Nelson, W. Peryt, H. G. Ritter, H. Z. Huang, Morton Kaplan, X. Z. Cai, R. Bellwied, A. S. Konstantinov, L. C. Bland, L. Liu, V. M. Leontiev, D. Seliverstov, A. Schüttauf, Olivier Ravel, A. S. Hirsch, Peter Martin Jacobs, P. Kravtsov, C. Adler, M. A. C. Lamont, S. B. Nurushev, Z. Milosevich, Jeffrey G. Reid, Hao-Ze Chen, M. Calderon De La Barca Sanchez, Subhasis Chattopadhyay, Q. Li, J. W. Harris, N.D. Gagunashvili, A Cardenas, Z P Zhang, E. Gushin, G. J. Kunde, P. Yepes, V. Eckardt, V. Perevoztchikov, K. Filimonov, Sergey Panitkin, S. U. Pandey, and A. E. Yakutin
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, Particle physics, Strange quark, media_common.quotation_subject, Hadron, Elementary particle, Kinematics, Decoupling (cosmology), Strangeness, Asymmetry, Nuclear physics, Nuclear Experiment, media_common
Abstract: An overview of the strangeness measurements made by the STAR collaboration at RHIC for Au-Au collisions at √s NN = 130 and 200 GeV plus p-p collisions at √s NN = 200 GeV is presented. A wealth of information has been generated on the kinematics and scale of strange particle production by this experiment. When viewed in combination a picture emerges of particles demonstrating a surprisingly high degree of collective motion, suggestive of strong internal pressure within the source which builds up rapidly. The non-resonance yields are consistent with statistical hadron formation. Although there appears to be a rapid decoupling of the source, resonance particle measurements show signs of rescattering during the hadronic phase. Meanwhile the observed suppression of high momentum probes and their large azimuthal asymmetry indicate that this hot dense matter has significant interactions with particles moving through it.
Published: 2003
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33. Communication systems simulator with error correcting codes using MATLAB

Author: Joaquín Pardo, C. Gomez, and J. E. Gonzalez
Subjects: Engineering, business.industry, General Engineering, Information technology, Communications system, Education, Software, Asynchronous communication, Error correcting, MATLAB, Error detection and correction, business, computer, Simulation, computer.programming_language, Coding (social sciences)
Abstract: In this work, the characteristics of a simulator for channel coding techniques used in communication systems, are described. This software has been designed for engineering students in order to facilitate the understanding of how the error correcting codes work. To help students understand easily the concepts related to these kinds of codes, a user-friendly interface has been developed using the MATLAB environment, since it provides many toolboxes related to communication systems.
Published: 2003
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34. Present Day Use of the Internet for Survey-Based Research

Author: J. E. Gonzalez
Subjects: Internet Draft, Health (social science), Computer Networks and Communications, Computer science, business.industry, Internet research, Internet privacy, Information access, General Social Sciences, Politics, The Internet, Polling, business, Sociology of the Internet, Social Sciences (miscellaneous), Internet presence management
Abstract: This article argues that Internet-based survey research studies are presently limited in their utility. What many consider "classical" blunders in political polling that took place in the 1930s are used as a vehicle for describing parallel methodological errors that may occur with present-day use of the Internet. Without thoughtful protocols, Internet-based surveys are susceptible to these familiar errors, which limit their predictive utility. Tools such as e-mail, file transfers, and data and information access/retrieval should continue to be the primary role of Internet use. A model that articulates the use of Internet technology in survey research is offered for consideration.
Published: 2002
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35. Structural health monitoring of concrete elements with embedded arrays of optical fibers

Author: Gerardo Aguilar-Ramos, J. E. Gonzalez-Tinoco, Alfredo Beltrán-Hernández, Sergei N. Khotiaintsev, and Héctor Guzmán-Olguín
Subjects: Cracking, Optical fiber, Materials science, Flexural strength, law, Acoustics, Transmittance, Redundancy (engineering), Embedding, Structural health monitoring, Multiplexing, law.invention
Abstract: An optical-fiber sensor system for structural health monitoring of concrete elements such as beams and columns is presented. The system employs arrays of conventional optical fibers embedded in the concrete elements as crack sensors. Twelve types of optical fibers as well as several embedding techniques have been tested for this role. The survival rate of optical fibers embedded in concrete could be as high as 80%. The loss of fibers during the embedding process was acceptable provided that the number of fibers in the array had redundancy. The optical transmission of all fibers in the array was monitored in a time-division multiplexed mode at a high repetition rate, in the kHz range. The monitoring scheme allowed a quasi-continuous data acquisitions of large optical fiber arrays. A sharp decrease in the optical transmission of one or more optical fibers was a clear indicator of the development of cracking in the element subjected to flexural loads. The system was successful in detecting not only the initiation but also the propagation of cracks in concrete elements subjected to incremental flexural loading. In this work, the relation between the mechanical properties of the optical fibers and their behavior for the described application is discussed. Also, considerations towards a rational design of the system are proposed. The damage detection system may be used for the mapping and monitoring of cracks in concrete elements. The simplicity of the operation and relatively low cost of the proposed system make it a great candidate for applications in structural health monitoring of critical elements in civil infrastructure.
Published: 2013
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36. Rapidity and species dependence of particle production at large transverse momentum ford+Aucollisions atsNN=200GeV

Author: G. Sood, A. Tai, J. Engelage, J. Amonett, John N. Wood, G. Eppley, N. Gupta, Anju Bhasin, R. N. Singaraju, A. P. Meschanin, Wen-Qing Shen, Jay Roberts, V. Emelianov, A. K. Bhati, D. Keane, Premomoy Ghosh, J. M. Landgraf, A. N. Zubarev, C. F. Moore, F. Retiere, J. Pluta, H. Liu, J. C. Dunlop, Zubayer Ahammed, M. J. LeVine, F. Jia, M. Heinz, N. G. Minaev, Manish Sharma, A. Lebedev, A. Ridiger, Thorsten Sven Kollegger, M. Strikhanov, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, P. Fachini, Lee Stuart Barnby, Souvik Das, A. Chikanian, R. Witt, Vladimir Petrov, A. Stolpovsky, C. Mironov, M. M. de Moura, V. Yu Khodyrev, S. L. Blyth, K. S.F.F. Guimaraes, M. Calderon De La Barca Sanchez, Y. Fisyak, W. J. Llope, M. Botje, J. Sandweiss, Z. Liu, B. K. Srivastava, I. M. Vasilevski, S. Bhardwaj, Boris Hippolyte, C-H. Lee, T. K. Nayak, L. K. Mangotra, M. Pachr, Jaroslav Bielcik, L. Kotchenda, S. Hepplemann, N. Xu, P. Filip, O. Catu, S. Lehocka, R. S. Longacre, Sergey Voloshin, Sergey Timoshenko, Christine Nattrass, R. Manweiler, A. Wetzler, R. Fatemi, K. Krueger, G. D. Westfall, D. K. Mishra, Petr Jákl, H. Long, S. R. Klein, T. Tarnowsky, M. R. Dutta Mazumdar, A. Kocoloski, Q. Li, E. M. Kislov, J. G. Cramer, L. Martin, D. D. Koetke, J. E. Draper, C. J. McClain, J. W. Harris, O. V. Rogachevskiy, A. M. Poskanzer, G. Wang, P. Seyboth, D. L. Olson, Robert E. Tribble, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, W. Christie, A. A. Derevschikov, K. Kang, A. I. Kulikov, M. J. Horner, D. Arkhipkin, Jie Liu, Y. Panebratsev, D. Grosnick, J. Takahashi, V. Kouchpil, J. W. Watson, J. P. Coffin, W. M. Zhang, F. Laue, A. Szanto de Toledo, J. Kapitan, A. Kechechyan, Andre Mischke, Anthony R. Timmins, Andrey Vasiliev, J. Baudot, W. Zhan, A. Bellingeri-Laurikainen, G. Igo, J. Bouchet, S. M. Dogra, R. Picha, M. Kramer, P. Yepes, V. Eckardt, E. Sugarbaker, W. A. Love, V. V. Belaga, Renaud Vernet, H. Z. Huang, S. Vokal, I. K. Yoo, Y. G. Gorbunov, A. Ogawa, P. Sorensen, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, T. W. Henry, A. H. Tang, T. J. Humanic, H. F. Chen, Peter Graham Jones, S. Bekele, J. Millane, Jichao Wang, Shengli Huang, Thomas A. Trainor, W. R. Edwards, C. A. Whitten, T. Pawlak, D. P. Mahapatra, N. Schmitz, N. T. Porile, E. Shahaliev, Janet Elizabeth Seger, W. He, C-Q. Li, Madan M. Aggarwal, A. M. Hoffman, Beomkyu Kim, L. Didenko, D. Thein, M. Cherney, M. L. Miller, J. Kiryluk, R. P. Scharenberg, Christina Markert, Fuqiang Wang, Thomas Michael Cormier, R. Varma, X. Lin, P. Djawotho, A. I. Pavlinov, Andrew Rose, Y. Zhao, H. S. Matis, Yu A. Matulenko, S. Lange, M. Oldenburg, Jana Bielcikova, A. M. Vander Molen, Joseph Adams, S. J. Lindenbaum, D. A. Morozov, F. Liu, J. Porter, B. Stringfellow, M. Sarsour, M. Kopytine, J. Fu, V. A. Nikitin, T. S. McShane, E. G. Judd, W. W. Jacobs, D. Magestro, M. Tokarev, E. Hjort, J. Lauret, Q. H. Xu, B. Haag, K. Schweda, V. I. Yurevich, Z. J. Sun, T. D. Gutierrez, R. D. Majka, R. Lednicky, L. Molnar, J. E. Gonzalez, B. E. Bonner, Gregory Rakness, B. V.K.S. Potukuchi, S. V. Razin, Bedangadas Mohanty, Yu-Gang Ma, Frank Simon, Z. Chajecki, S. Margetis, J. Schambach, H. Jiang, O. D. Tsai, T. D. S. Stanislaus, H. H. Wieman, S. Kabana, T. Dietel, Y. P. Viyogi, Mirko Planinic, Adam Ryszard Kisiel, C. Perkins, H. J. Crawford, Y. Guo, M. Lopez-Noriega, J. H. Chen, Basanta Kumar Nandi, M. Bystersky, J. Speltz, T. Peitzmann, O. G. Grebenyuk, M. DePhillips, Z. Xu, G. Lin, Michal Sumbera, Guo-Liang Ma, V. B. Dunin, Y. Bai, J. Castillo, S. W. Wissink, Y. Zhang, Nikola Poljak, J. Fedorisin, V. A. Okorokov, R. V. Cadman, Morton Kaplan, X. Z. Cai, Sevil Salur, Y. Wang, Jianhong Wu, C. Roy, D. G. Underwood, M. Swanger, A. S. Hirsch, H. Gos, A. Stadnik, P. Chaloupka, J. C. Webb, P. Kravtsov, Peter Martin Jacobs, M. Shao, Y. Lu, S. B. Nurushev, T. J. Hallman, J. Cheng, T. J. M. Symons, I. Selyuzhenkov, J. Reinnarth, J. Sowinski, G. Van Buren, W. T. Waggoner, T. W. Ludlam, J. M. Nelson, Yan Li, W. Peryt, Sukalyan Chattopadhyay, M. S. Ganti, V. Perevoztchikov, K. Filimonov, E. W. Hughes, K. L. Kowalik, Sergey Panitkin, V. Fine, Gerald W Hoffmann, Raimond Snellings, B. D. Anderson, A. Kumar, F. Du, L. V. Nogach, V. I. Kravtsov, Zhenyu Zhang, M. R. Cosentino, F. Benedosso, T. G. Dedovich, T. Sakuma, S. C. Phatak, V. Ghazikhanian, Saskia Mioduszewski, J. L. Romero, A. Shabetai, P. S. Sazhin, E. Finch, H. M. Spinka, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, J. H. Thomas, T. Ullrich, R. Zoulkarneev, L. Ruan, R. L. Ray, E. Potrebenikova, T. Ljubicic, G. S. Averichev, H. Caines, Sudhir Raniwala, S. S. Shimanskiy, D. Relyea, X. L. Wang, C. Zhong, M. van Leeuwen, X. Dong, S. K. Pal, A. Bravar, Matthew J. Anderson, M. S. Daugherity, H. Zhang, L. C. Bland, J. X. Zuo, B. Erazmus, S. LaPointe, A. A. Kuznetsov, Jorn Henning Putschke, L. Liu, A. V. Brandin, S. E. Vigdor, Christian Claude Kuhn, D. Cebra, S. Trentalange, M. Estienne, Yu Melnick, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, M. Potekhin, J. Ulery, H. G. Ritter, Bernd Surrow, O. Barannikova, R. Bellwied, David Lynn, M. J. Russcher, B. I. Abelev, Pawan Kumar Netrakanti, L. Gaillard, C. A. Gagliardi, N. van der Kolk, A. Hamed, J. G. Ma, Marcelo Gameiro Munhoz, D. J. Prindle, M. A. Lisa, and W. J. Dong
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Proton, 010308 nuclear & particles physics, Hadron, Parton, 01 natural sciences, 7. Clean energy, Gluon, Color-glass condensate, Nuclear physics, Pion, Antiproton, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: We determine rapidity asymmetry in the production of charged pions, protons, and antiprotons for large transverse momentum (p{sub T}) for d+Au collisions at {radical}(s{sub NN})=200 GeV. The rapidity asymmetry is defined as the ratio of particle yields at backward rapidity (Au beam direction) to those at forward rapidity (d beam direction). The identified hadrons are measured in the rapidity regions |y
Published: 2007
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37. Strange particle production inp+pcollisions ats=200GeV

Author: J. Speltz, M. DePhillips, R. Fatemi, P. Seyboth, Michal Sumbera, T. Kollegger, A. A. P. Suaide, Y. Bai, A. I. Pavlinov, F. Liu, J. Castillo, Jie Liu, S. W. Wissink, R. Picha, V. P. Viyogi, T. D. Gutierrez, Y. Zhang, Sergey Voloshin, L. K. Mangotra, Nikola Poljak, H. M. Spinka, M. Cherney, F. Laue, R. D. Majka, R. Manweiler, Thomas Michael Cormier, J. Sowinski, B. I. Abelev, E. Potrebenikova, E. Sugarbaker, H. Z. Huang, J. E. Draper, Y. Wang, J. Schambach, S. Vokal, A. Kechechyan, Andre Mischke, T. W. Henry, T. Ljubicic, B. Haag, B. V. K. S. Potukuchi, J. Baudot, W. J. Llope, D. Thein, M. Kopytine, J. Fu, H. Caines, Sudhir Raniwala, M. Tokarev, R. Witt, G. Eppley, W. Christie, L. Liu, K. Schweda, T. D. S. Stanislaus, H. H. Wieman, Sukalyan Chattopadhyay, H. Bichsel, A. I. Kulikov, Q. H. Xu, J. Kiryluk, J. H. Chen, J. E. Gonzalez, Bedangadas Mohanty, Rajarshi Ray, S. Mioduszewski, W. M. Zhang, Andrey Vasiliev, S. S. Shimanskiy, D. Relyea, A. Stolpovsky, V. Yu Khodyrev, N. Xu, P. Filip, Y. Zoulkarneeva, C. Zhong, M. R. Cosentino, H. Liu, J. Pluta, Michael Kramer, M. S. Ganti, T. J. Hallman, H. Long, J. Putschke, Debasish Das, Vitaly Okorokov, L. Molnar, R. N. Singaraju, A. Chikanian, Bernd Surrow, J. W. Mitchell, D. A. Morozov, F. Benedosso, G. D. Westfall, J. Porter, A. P. Meschanin, B. K. Srivastava, I. M. Vasilevski, L. Kotchenda, S. Hepplemann, Z. Chajecki, T. S. McShane, Janet Elizabeth Seger, J. W. Watson, M. Potekhin, A. M. Hoffman, M. Bystersky, Y. P. Lu, Rene Bellwied, S. Bhardwaj, A. Ogawa, V. Perevoztchikov, Sunil Dogra, S. Das, A. Gupta, Petr Jákl, K. Filimonov, E. W. Hughes, Anju Bhasin, A. Ridiger, P. Djawotho, Pawan Kumar Netrakanti, Boris Hippolyte, C. Perkins, T. Peitzmann, X. L. Wang, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, K. Kang, T. J. Humanic, J. Ulery, Anthony Robert Timmins, Adam Ryszard Kisiel, D. Arkhipkin, K. L. Kowalik, R. E. Tribble, S. Margetis, C-Q. Li, Y. Fisyak, Gerald W Hoffmann, A. Lebedev, H. G. Ritter, M. M. de Moura, Christine Nattrass, L. Martin, Manish Sharma, M. Calderon De La Barca Sanchez, D. Magestro, A. Hamed, T. G. Dedovich, David Lynn, C. A. Gagliardi, S. Bekele, R.J.M. Snellings, S. V. Razin, M. van Leeuwen, X. Dong, R. P. Scharenberg, Christina Markert, S. K. Pal, H. J. Crawford, M. J. Russcher, M. Botje, A. Szanto de Toledo, J. Kapitan, N. van der Kolk, H. S. Matis, I. K. Yoo, Y. G. Gorbunov, S. Lehocka, A. N. Zubarev, M. Pachr, C. J. McClain, Guo-Liang Ma, R. S. Longacre, S. C. Phatak, A. Kumar, Lee Stuart Barnby, Jay Roberts, T. P. Burton, G. Lin, J. H. Thomas, O. Catu, J. C. Webb, L. Gaillard, A. Bravar, R. V. Cadman, E. P. Sichtermann, W. W. Jacobs, C. Roy, T. Pawlak, J. Lauret, X. Lin, Jaroslav Bielcik, A. Shabetai, G. Wang, Ilya Selyuzhenkov, F. Retiere, A. Wetzler, P. Fachini, S. Kabana, Y. Li, S. M. Guertin, K. Krueger, C. F. Moore, Z. P. Zhang, Jianhong Wu, A. S. Hirsch, M. R. Dutta Mazumdar, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, Sadhana Dash, R. Lednicky, A. M. Vander Molen, K. S.F.F. Guimaraes, A. Kocoloski, P. M. Jacobs, B. D. Anderson, J. R. Adams, E. G. Judd, N. G. Minaev, O. V. Rogachevskiy, Raghunath Sahoo, M. S. Daugherity, P. Kravtsov, J. P. Coffin, Tai Sakuma, J. G. Ma, A. Bellingeri-Laurikainen, Q. Li, G. Igo, M. Heinz, D. P. Mahapatra, F. Du, M. Swanger, Camelia Mironov, Thomas Dietel, J. C. Dunlop, H. Gos, Z. J. Sun, W. A. Love, T. Ullrich, R. Zoulkarneev, N. T. Porile, Zubayer Ahammed, G. S. Averichev, P. Chaloupka, D. G. Underwood, Mirko Planinic, Michael W. Anderson, E. Hjort, M. Oldenburg, J. Bouchet, D. D. Koetke, Beomkyu Kim, L. V. Nogach, S. R. Klein, M. J. LeVine, V. I. Kravtsov, R. Varma, W. T. Waggoner, S. Trentalange, Yu A. Matulenko, T. Tarnowsky, B. Erazmus, C. A. Whitten, L. Ruan, Madan M. Aggarwal, J. Cheng, Fuqiang Wang, T. J. M. Symons, J. Millane, O. Barannikova, D. L. Olson, Gregory Rakness, A. Rose, Y. Zhao, V. Fine, B. Stringfellow, D. K. Mishra, D. Cebra, H. Jiang, S. Lange, A. A. Derevschikov, S. J. Lindenbaum, M. Estienne, E. M. Kislov, Yu Melnick, Basanta Kumar Nandi, V. V. Belaga, J. G. Cramer, S. Timoshenko, F. Jia, W. He, V. B. Dunin, L. C. Bland, A. M. Poskanzer, J. Fedorisin, Peter Graham Jones, Marcelo Gameiro Munhoz, D. J. Prindle, A. Stadnik, V. I. Yurevich, L. Didenko, J. W. Harris, O. G. Grebenyuk, M. A. Lisa, W. J. Dong, W. L. Zhan, P. Yepes, V. Eckardt, Renaud Vernet, A. H. Tang, Frank Simon, M. Sarsour, J. Takahashi, N. Schmitz, E. Shahaliev, V. Ghazikhanian, M. A. C. Lamont, S. B. Nurushev, Jana Bielcikova, J. L. Romero, P. S. Sazhin, E. Finch, P. Sorensen, J. Reinnarth, M. Shao, G. Van Buren, T. W. Ludlam, J. M. Nelson, Y. G. Ma, W. Peryt, Morton Kaplan, X. Z. Cai, Y. Panebratsev, D. Grosnick, V. Kouchpil, Z. Z. Xu, Nikita Smirnov, B. E. Bonner, O. D. Tsai, W. Q. Shen, Sevil Salur, A. A. Kuznetsov, S. Y. Panitkin, A. Tai, G. Sood, J. S. Wang, J. Amonett, V. Emelianov, A. K. Bhati, D. Keane, R. Stock, L. G. Efimov, C-H. Lee, T. K. Nayak, A. V. Brandin, S. E. Vigdor, Christian Claude Kuhn, H. Zhang, J. X. Zuo, M. L. Miller, S. LaPointe, M. J. Horner, J. Engelage, John N. Wood, Premomoy Ghosh, J. M. Landgraf, M. Strikhanov, S. L. Blyth, G. Odyniec, J. Sandweiss, and Z. Liu
Subjects: Quark, Physics, Nuclear and High Energy Physics, Strange quark, Meson, 010308 nuclear & particles physics, Intersecting Storage Rings, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, 01 natural sciences, Super Proton Synchrotron, Baryon, Nuclear physics, 0103 physical sciences, Transverse mass, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We present strange particle spectra and yields measured at midrapidity in $\sqrt{s}=200$ GeV proton-proton ($p+p$) collisions at the BNL Relativistic Heavy Ion Collider (RHIC). We find that the previously observed universal transverse mass (${m}_{T}\ensuremath{\equiv}\sqrt{{{p}_{T}}^{2}+{m}^{2}}$) scaling of hadron production in $p+p$ collisions seems to break down at higher ${m}_{T}$ and that there is a difference in the shape of the ${m}_{T}$ spectrum between baryons and mesons. We observe midrapidity antibaryon to baryon ratios near unity for \ensuremath{\Lambda} and \ensuremath{\Xi} baryons and no dependence of the ratio on transverse momentum, indicating that our data do not yet reach the quark-jet dominated region. We show the dependence of the mean transverse momentum $\ensuremath{\langle}{p}_{T}\ensuremath{\rangle}$ on measured charged particle multiplicity and on particle mass and infer that these trends are consistent with gluon-jet dominated particle production. The data are compared with previous measurements made at the CERN Super Proton Synchrotron and Intersecting Storage Rings and in Fermilab experiments and with leading-order and next-to-leading-order string fragmentation model predictions. We infer from these comparisons that the spectral shapes and particle yields from $p+p$ collisions at RHIC energies have large contributions from gluon jets rather than from quark jets.
Published: 2007
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38. Scaling Properties of Hyperon Production inAu+AuCollisions atsNN=200 GeV

Author: J. S. Wang, H. Bichsel, G. Odyniec, D. Thein, Y. Zoulkarneeva, M. Potekhin, M. Kopytine, J. Fu, M. Tokarev, M. S. Daugherity, David Lynn, M. J. Russcher, A. Stolpovsky, M. L. Miller, Z. Xu, G. Lin, L. Kotchenda, S. Hepplemann, J. C. Webb, O. G. Grebenyuk, R. V. Cadman, T. D. S. Stanislaus, A. Hamed, V. B. Dunin, Guo-Liang Ma, J. G. Ma, A. N. Zubarev, Sergey Voloshin, Christine Nattrass, Jianhong Wu, V. A. Nikitin, A. S. Hirsch, C. O. Blyth, H. H. Wieman, P. Kravtsov, Marcelo Gameiro Munhoz, D. J. Prindle, C. Roy, Zhenyu Zhang, M. R. Cosentino, J. Sowinski, P. Fachini, Sukalyan Chattopadhyay, M. S. Ganti, K. S.F.F. Guimaraes, K. Kang, Matthew J. Anderson, Raimond Snellings, V. Perevoztchikov, K. Filimonov, E. W. Hughes, K. L. Kowalik, Sergey Panitkin, M. A. Lisa, W. J. Dong, J. Fedorisin, H. A. Choi, M. J. Horner, L. K. Mangotra, W. Christie, A. I. Kulikov, R. Manweiler, J. E. Gonzalez, L. C. Bland, T. Dietel, W. T. Waggoner, J. H. Thomas, T. G. Dedovich, Bedangadas Mohanty, W. M. Zhang, Andrey Vasiliev, L. Ruan, M. Heinz, Lee Stuart Barnby, S. C. Phatak, V. Fine, E. M. Kislov, J. G. Cramer, N. Schmitz, E. Shahaliev, Janet Elizabeth Seger, S. R. Klein, T. Tarnowsky, D. L. Olson, Adam Ryszard Kisiel, J. Baudot, H. J. Crawford, A. M. Poskanzer, A. A. Kuznetsov, L. Liu, B. Haag, G. S. Averichev, A. Kechechyan, Andre Mischke, O. Barannikova, Souvik Das, R. Witt, Y. Guo, B. V.K.S. Potukuchi, Yu-Gang Ma, Vladimir Petrov, Mirko Planinic, R. Fatemi, M. Swanger, M. Kramer, M. Lopez-Noriega, X. L. Wang, J. H. Chen, T. S. McShane, W. J. Llope, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, D. P. Mahapatra, K. Schweda, G. Sood, A. A. Derevschikov, K. Krueger, C. Zhong, M. Bystersky, B. I. Bezverkhny, A. I. Pavlinov, Jaroslav Bielcik, R. Picha, S. Mioduszewski, F. Liu, M. van Leeuwen, X. Dong, A. Ridiger, Thorsten Sven Kollegger, V. Yu Khodyrev, P. Djawotho, J. Engelage, Y. Lu, I. Selyuzhenkov, Yu Chen, H. Gos, P. Chaloupka, F. Laue, A. Szanto de Toledo, W. He, M. Cherney, J. Kapitan, S. K. Pal, John N. Wood, Z. Chajecki, S. V. Razin, A. Bravar, B. Erazmus, Thomas Michael Cormier, Premomoy Ghosh, R. N. Singaraju, A. P. Meschanin, Sergey Timoshenko, A. M. Vander Molen, C. Perkins, J. M. Landgraf, I. K. Yoo, Y. G. Gorbunov, C. A. Whitten, B. K. Srivastava, I. M. Vasilevski, Wen-Qing Shen, Joseph Adams, M. Sarsour, E. P. Sichtermann, E. Hjort, T. Peitzmann, M. Strikhanov, H. Zhang, D. Cebra, S. Trentalange, M. Estienne, H. Long, S. Kabana, T. D. Gutierrez, J. Ulery, Gregory Rakness, R. D. Majka, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, H. G. Ritter, Yu Melnick, S. M. Dogra, Y. P. Viyogi, D. Magestro, S. L. Blyth, B. D. Anderson, I. Sakrejda, M. R. Dutta Mazumdar, T. Ullrich, O. V. Rogachevskiy, T. Pawlak, W. A. Love, R. Zoulkarneev, R. Bellwied, T. J. Humanic, J. Gans, Manish Sharma, J. Reinnarth, G. Van Buren, L. Gaillard, E. G. Judd, S. Bhardwaj, S. Margetis, J. Schambach, Anju Bhasin, Jie Liu, Christina Markert, J. Sandweiss, Z. Liu, A. Shabetai, Boris Hippolyte, J. X. Zuo, R. L. Ray, E. Potrebenikova, J. Takahashi, R. S. Longacre, G. Eppley, H. Jiang, J. W. Watson, S. LaPointe, N. T. Porile, H. M. Spinka, T. Ljubicic, Madan M. Aggarwal, Fuqiang Wang, N. Gupta, L. Martin, S. Lange, Jana Bielcikova, S. J. Lindenbaum, Debasish Das, Raghunath Sahoo, H. Caines, Sudhir Raniwala, M. A.C. Lamont, M. Oldenburg, Beomkyu Kim, A. Kumar, Jorn Henning Putschke, A. Bellingeri-Laurikainen, G. Igo, J. Pluta, S. S. Shimanskiy, D. Relyea, A. V. Brandin, Basanta Kumar Nandi, A. Ogawa, A. Lebedev, F. Du, M. M. de Moura, Jay Roberts, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, R. Varma, J. Bouchet, D. G. Underwood, S. E. Vigdor, L. V. Nogach, Yu A. Matulenko, Christian Claude Kuhn, V. V. Belaga, V. A. Okorokov, C-Q. Li, M. Pachr, R. E. Tribble, V. I. Kravtsov, M. Botje, V. I. Yurevich, D. D. Koetke, B. Stringfellow, Andrew Rose, Y. Zhao, C. F. Moore, J. E. Draper, R. P. Scharenberg, T. W. Ludlam, C. J. McClain, F. Jia, H. Liu, A. Chikanian, Gerald W Hoffmann, W. L. Zhan, H. S. Matis, P. Sorensen, A. Wetzler, Peter Graham Jones, J. Porter, Frank Simon, W. W. Jacobs, J. M. Nelson, M. Calderon De La Barca Sanchez, D. K. Mishra, M. Shao, J. C. Dunlop, J. Speltz, J. Lauret, L. Didenko, M. DePhillips, D. Arkhipkin, T. J. Hallman, J. Cheng, S. Bekele, J. P. Coffin, Zubayer Ahammed, R. Lednicky, L. Molnar, O. Catu, M. J. LeVine, N. Xu, P. Filip, T. J. M. Symons, Michal Sumbera, G. D. Westfall, Q. Li, Yan Li, Y. Bai, W. Peryt, V. Ghazikhanian, Petr Jákl, J. Castillo, S. W. Wissink, Y. Zhang, Nikola Poljak, J. L. Romero, J. W. Harris, F. Retiere, P. S. Sazhin, Bernd Surrow, N. G. Minaev, E. Finch, Anthony R. Timmins, Pawan Kumar Netrakanti, P. Yepes, V. Eckardt, Renaud Vernet, A. H. Tang, C. A. Gagliardi, N. van der Kolk, A. Stadnik, Peter Martin Jacobs, Gang Wang, E. Sugarbaker, H. Z. Huang, S. Vokal, S. B. Nurushev, J. Kiryluk, D. A. Morozov, Morton Kaplan, X. Z. Cai, P. Seyboth, B. E. Bonner, O. D. Tsai, T. W. Henry, C. Mironov, Y. Fisyak, S. Lehocka, Q. H. Xu, Z. J. Sun, Sevil Salur, Y. Wang, Y. Panebratsev, D. Grosnick, V. Kouchpil, A. Tai, J. Amonett, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, C-H. Lee, and T. K. Nayak
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hyperon, General Physics and Astronomy, Lambda baryon, Omega baryon, Lambda, 01 natural sciences, Xi baryon, Baryon, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Nucleon
Abstract: We present the scaling properties of Lambda, Xi, and Omega in midrapidity Au+Au collisions at the Brookhaven National Laboratory Relativistic Heavy Ion Collider at sqrt[s_{NN}]=200 GeV. The yield of multistrange baryons per participant nucleon increases from peripheral to central collisions more rapidly than that of Lambda, indicating an increase of the strange-quark density of the matter produced. The strange phase-space occupancy factor gamma_{s} approaches unity for the most central collisions. Moreover, the nuclear modification factors of p, Lambda, and Xi are consistent with each other for 2
Published: 2007
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39. Effects of Bacillus thuringiensis Cry Toxins on Developmental and Reproductive Characteristics of the Predator Orius albidipennis (Hemiptera: Anthocoridae) Under Laboratory Conditions

Author: J. E. Gonzalez-Zamora, S. Camunez, C. Avilla, and Universidad de Sevilla. Departamento de Ciencias Agroforestales
Subjects: Ecology, Insect Science, Orius albidipennis, Bacillus thuringiensis toxins, nontarget organisms, Ecology, Evolution, Behavior and Systematics
Abstract: The effects of Cry toxins from Bacillus thuringiensis (Berliner) (Bt) on the anthocorid Orius albidipennis Reuter were studied under laboratory conditions. Tritrophic experiments were performed, in which Orius nymphs were fed Helicoverpa armigera (Hu¨bner) larvae reared on a diet with Cry1Ac, Cry1Ab, or Cry2Ab toxins at different concentrations (0, 1, and 10 g/ml), when supplemented with Ephestia kuehniella Zeller eggs. In complementary experiments, the Bt Cry1Ac toxin was directly fed to Orius nymphs at a very high concentration (1 mg/ml). No effects on prey consumption, developmental time, nymph survival, fecundity, and egg hatching of O. albidipennis were found in either experiment. It can be concluded that the toxins tested do not seem to pose a risk for the anthocorid O. albidipennis, especially when it is exposed through the prey
Published: 2007

40. Longitudinal Double-Spin Asymmetry and Cross Section for Inclusive Jet Production in Polarized Proton Collisions ats=200 GeV

Author: V. Ghazikhanian, M. Calderon De La Barca Sanchez, Marcelo Gameiro Munhoz, D. J. Prindle, J. C. Dunlop, J. L. Romero, G. Wang, C. Roy, P. S. Sazhin, E. Finch, O. Catu, P. Seyboth, Zubayer Ahammed, W. J. Llope, A. M. Vander Molen, E. Hjort, Gregory Rakness, D. Thein, Sergey Timoshenko, J. E. Gonzalez, R. S. Longacre, A. Kocoloski, Q. Li, S. Dash, A. Stadnik, Peter Martin Jacobs, Bedangadas Mohanty, M. J. LeVine, A. Ridiger, Y. Lu, Guo-Liang Ma, M. Swanger, M. Kopytine, J. Fu, N. Schmitz, E. Shahaliev, Thorsten Sven Kollegger, M. A. Lisa, W. J. Dong, H. Gos, T. P. Burton, T. S. McShane, P. Chaloupka, K. Kang, B. Haag, S. B. Nurushev, Debasish Das, Raghunath Sahoo, J. H. Thomas, J. Takahashi, R. L. Ray, E. Potrebenikova, H. Long, M. Tokarev, M. A.C. Lamont, A. Stolpovsky, A. Bellingeri-Laurikainen, M. J. Horner, A. S. Hirsch, J. C. Webb, J. W. Watson, P. Kravtsov, L. Kotchenda, S. Hepplemann, A. Ogawa, G. Igo, V. Fine, L. Martin, R. Fatemi, Wen-Qing Shen, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, L. Ruan, J. Bouchet, J. H. Chen, T. Ljubicic, H. Jiang, L. C. Bland, K. Krueger, D. D. Koetke, J. E. Draper, C. J. McClain, M. Bystersky, N. Xu, J. Speltz, D. Magestro, J. Sowinski, J. X. Zuo, C-Q. Li, F. Laue, A. Szanto de Toledo, S. V. Razin, P. Filip, Basanta Kumar Nandi, J. Millane, H. Caines, Sudhir Raniwala, M. DePhillips, R. Picha, J. Kapitan, Z. Chajecki, S. M. Dogra, Anju Bhasin, R. P. Scharenberg, Christina Markert, H. S. Matis, B. Erazmus, Q. H. Xu, Andrew Rose, V. A. Okorokov, Y. Zhao, J. W. Harris, T. D. S. Stanislaus, J. P. Coffin, Michal Sumbera, J. Porter, A. H. Tang, Sukalyan Chattopadhyay, T. Pawlak, Z. J. Sun, M. S. Ganti, W. W. Jacobs, S. S. Shimanskiy, J. Lauret, G. S. Averichev, Morton Kaplan, Souvik Das, A. Chikanian, D. Relyea, R. Witt, G. Sood, X. Z. Cai, W. He, H. H. Wieman, Anthony R. Timmins, C. Perkins, I. Selyuzhenkov, X. Lin, Y. Bai, E. Sugarbaker, R. Lednicky, L. Molnar, J. Reinnarth, D. K. Mishra, S. Kabana, A. A. Kuznetsov, P. Yepes, V. Eckardt, A. Shabetai, D. Cebra, M. Cherney, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, H. Z. Huang, G. Van Buren, Renaud Vernet, Thomas Michael Cormier, L. Liu, S. Vokal, J. Engelage, B. V.K.S. Potukuchi, G. D. Westfall, D. Arkhipkin, Yu-Gang Ma, T. Peitzmann, Y. P. Viyogi, V. Perevoztchikov, John N. Wood, S. Trentalange, J. Castillo, E. W. Hughes, S. Mioduszewski, S. W. Wissink, M. Estienne, V. Yu Khodyrev, Y. Zhang, A. Lebedev, Z. Xu, G. Lin, R. N. Singaraju, M. Sarsour, S. Bekele, X. L. Wang, A. P. Meschanin, L. K. Mangotra, T. Dietel, T. J. Humanic, M. M. de Moura, K. L. Kowalik, C. Zhong, Chang-Hwan Lee, T. W. Ludlam, J. M. Nelson, Premomoy Ghosh, Mirko Planinic, Sergey Panitkin, D. P. Mahapatra, Nikola Poljak, Sergey Voloshin, Yu Melnick, Christine Nattrass, Jie Liu, R. V. Cadman, R. Manweiler, J. M. Landgraf, Jianhong Wu, A. Kumar, F. Du, Yan Li, W. Peryt, Y. Panebratsev, M. Botje, B. K. Srivastava, I. M. Vasilevski, T. W. Henry, M. van Leeuwen, X. Dong, Petr Jákl, C. Mironov, Y. Fisyak, Manish Sharma, O. G. Grebenyuk, J. Kiryluk, N. T. Porile, V. B. Dunin, M. Strikhanov, J. Fedorisin, L. V. Nogach, M. L. Miller, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, S. Bhardwaj, Boris Hippolyte, A. M. Poskanzer, S. Lehocka, H. M. Spinka, S. K. Pal, A. Bravar, S. L. Blyth, D. Grosnick, V. Kouchpil, V. I. Kravtsov, A. Wetzler, D. A. Morozov, P. Djawotho, A. Kechechyan, Andre Mischke, E. P. Sichtermann, J. Sandweiss, Z. Liu, Beomkyu Kim, S. R. Klein, T. Tarnowsky, Zhenyu Zhang, M. R. Cosentino, N. Gupta, M. Potekhin, J. Baudot, Jay Roberts, M. S. Daugherity, I. K. Yoo, Y. G. Gorbunov, D. G. Underwood, J. Balewski, W. T. Waggoner, Rashmi Raniwala, F. Benedosso, H. Zhang, Claude Andre Pruneau, Adam Ryszard Kisiel, R. Varma, D. L. Olson, M. Shao, W. Christie, A. I. Kulikov, David Lynn, T. J. Hallman, J. Cheng, T. J. M. Symons, M. J. Russcher, J. Ulery, T. Ullrich, H. J. Crawford, E. G. Judd, T. G. Dedovich, T. Sakuma, W. M. Zhang, Andrey Vasiliev, R. Zoulkarneev, H. G. Ritter, Yu A. Matulenko, O. Barannikova, R. Bellwied, S. C. Phatak, L. Gaillard, Janet Elizabeth Seger, B. Stringfellow, A. M. Hoffman, A. A. Derevschikov, A. Hamed, J. G. Ma, A. I. Pavlinov, F. Liu, N. G. Minaev, Matthew J. Anderson, E. M. Kislov, V. V. Belaga, Hong Liu, T. D. Gutierrez, J. G. Cramer, R. D. Majka, S. Margetis, J. Schambach, C. F. Moore, C. A. Whitten, F. Jia, P. Sorensen, M. Kramer, A. Tai, S. Lange, Jana Bielcikova, S. J. Lindenbaum, Peter Graham Jones, J. Amonett, L. Didenko, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, T. K. Nayak, B. E. Bonner, O. D. Tsai, A. N. Zubarev, P. Fachini, K. S.F.F. Guimaraes, Sevil Salur, Y. Wang, Bernd Surrow, B. I. Abelev, Pawan Kumar Netrakanti, C. A. Gagliardi, N. van der Kolk, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. A. Love, Madan M. Aggarwal, Fuqiang Wang, M. Oldenburg, V. I. Yurevich, W. L. Zhan, Frank Simon, S. LaPointe, J. S. Wang, G. Eppley, Jorn Henning Putschke, A. V. Brandin, J. Pluta, S. E. Vigdor, Christian Claude Kuhn, M. Pachr, R. E. Tribble, Gerald W Hoffmann, Raimond Snellings, and B. D. Anderson
Subjects: Quantum chromodynamics, Physics, Particle physics, Proton, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Nuclear Theory, General Physics and Astronomy, Perturbative QCD, Polarization (waves), 01 natural sciences, Asymmetry, Gluon, Nuclear physics, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, media_common
Abstract: We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive midrapidity jet production in polarized proton collisions at s=200 GeV. The cross section data cover transverse momenta 5 < p(T)< 50 GeV/c and agree with next-to-leading order perturbative QCD evaluations. The A(LL) data cover 5 < p(T)< 17 GeV/c and disfavor at 98% C.L. maximal positive gluon polarization in the polarized nucleon.
Published: 2006
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41. Proton-Λ correlations in central Au+Au collisions atsNN=200GeV

Author: J. Adams, M. M. Aggarwal, Z. Ahammed, J. Amonett, B. D. Anderson, D. Arkhipkin, G. S. Averichev, S. K. Badyal, Y. Bai, J. Balewski, O. Barannikova, L. S. Barnby, J. Baudot, S. Bekele, V. V. Belaga, A. Bellingeri-Laurikainen, R. Bellwied, J. Berger, B. I. Bezverkhny, S. Bharadwaj, A. Bhasin, A. K. Bhati, V. S. Bhatia, H. Bichsel, J. Bielcik, J. Bielcikova, A. Billmeier, L. C. Bland, C. O. Blyth, S.-L. Blyth, B. E. Bonner, M. Botje, A. Boucham, J. Bouchet, A. V. Brandin, A. Bravar, M. Bystersky, R. V. Cadman, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, J. Castillo, O. Catu, D. Cebra, Z. Chajecki, P. Chaloupka, S. Chattopadhyay, H. F. Chen, J. H. Chen, Y. Chen, J. Cheng, M. Cherney, A. Chikanian, H. A. Choi, W. Christie, J. P. Coffin, T. M. Cormier, M. R. Cosentino, J. G. Cramer, H. J. Crawford, D. Das, S. Das, M. Daugherity, M. M. de Moura, T. G. Dedovich, M. DePhillips, A. A. Derevschikov, L. Didenko, T. Dietel, S. M. Dogra, W. J. Dong, X. Dong, J. E. Draper, F. Du, A. K. Dubey, V. B. Dunin, J. C. Dunlop, M. R. Dutta Mazumdar, V. Eckardt, W. R. Edwards, L. G. Efimov, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, P. Fachini, J. Faivre, R. Fatemi, J. Fedorisin, K. Filimonov, P. Filip, E. Finch, V. Fine, Y. Fisyak, K. S. F. Fornazier, J. Fu, C. A. Gagliardi, L. Gaillard, J. Gans, M. S. Ganti, F. Geurts, V. Ghazikhanian, P. Ghosh, J. E. Gonzalez, H. Gos, O. Grachov, O. Grebenyuk, D. Grosnick, S. M. Guertin, Y. Guo, A. Gupta, N. Gupta, T. D. Gutierrez, T. J. Hallman, A. Hamed, D. Hardtke, J. W. Harris, M. Heinz, T. W. Henry, S. Hepplemann, B. Hippolyte, A. Hirsch, E. Hjort, G. W. Hoffmann, M. J. Horner, H. Z. Huang, S. L. Huang, E. W. Hughes, T. J. Humanic, G. Igo, A. Ishihara, P. Jacobs, W. W. Jacobs, M. Jedynak, H. Jiang, P. G. Jones, E. G. Judd, S. Kabana, K. Kang, M. Kaplan, D. Keane, A. Kechechyan, V. Yu. Khodyrev, B. C. Kim, J. Kiryluk, A. Kisiel, E. M. Kislov, J. Klay, S. R. Klein, D. D. Koetke, T. Kollegger, M. Kopytine, L. Kotchenda, K. L. Kowalik, M. Kramer, P. Kravtsov, V. I. Kravtsov, K. Krueger, C. Kuhn, A. I. Kulikov, A. Kumar, R. Kh. Kutuev, A. A. Kuznetsov, M. A. C. Lamont, J. M. Landgraf, S. Lange, F. Laue, J. Lauret, A. Lebedev, R. Lednicky, C.-H. Lee, S. Lehocka, M. J. LeVine, C. Li, Q. Li, Y. Li, G. Lin, S. J. Lindenbaum, M. A. Lisa, F. Liu, H. Liu, J. Liu, L. Liu, Q. J. Liu, Z. Liu, T. Ljubicic, W. J. Llope, H. Long, R. S. Longacre, M. Lopez-Noriega, W. A. Love, Y. Lu, T. Ludlam, D. Lynn, G. L. Ma, J. G. Ma, Y. G. Ma, D. Magestro, S. Mahajan, D. P. Mahapatra, R. Majka, L. K. Mangotra, R. Manweiler, S. Margetis, C. Markert, L. Martin, J. N. Marx, H. S. Matis, Yu. A. Matulenko, C. J. McClain, T. S. McShane, F. Meissner, Yu. Melnick, A. Meschanin, M. L. Miller, N. G. Minaev, C. Mironov, A. Mischke, D. K. Mishra, J. Mitchell, B. Mohanty, L. Molnar, C. F. Moore, D. A. Morozov, M. G. Munhoz, B. K. Nandi, S. K. Nayak, T. K. Nayak, J. M. Nelson, P. K. Netrakanti, V. A. Nikitin, L. V. Nogach, S. B. Nurushev, G. Odyniec, A. Ogawa, V. Okorokov, M. Oldenburg, D. Olson, S. K. Pal, Y. Panebratsev, S. Y. Panitkin, A. I. Pavlinov, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, V. A. Petrov, S. C. Phatak, R. Picha, M. Planinic, J. Pluta, N. Porile, J. Porter, A. M. Poskanzer, M. Potekhin, E. Potrebenikova, B. V. K. S. Potukuchi, D. Prindle, C. Pruneau, J. Putschke, G. Rakness, R. Raniwala, S. Raniwala, O. Ravel, R. L. Ray, S. V. Razin, D. Reichhold, J. G. Reid, J. Reinnarth, G. Renault, F. Retiere, A. Ridiger, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, A. Rose, C. Roy, L. Ruan, M. J. Russcher, R. Sahoo, I. Sakrejda, S. Salur, J. Sandweiss, M. Sarsour, I. Savin, P. S. Sazhin, J. Schambach, R. P. Scharenberg, N. Schmitz, K. Schweda, J. Seger, I. Selyuzhenkov, P. Seyboth, E. Shahaliev, M. Shao, W. Shao, M. Sharma, W. Q. Shen, K. E. Shestermanov, S. S. Shimanskiy, E. Sichtermann, F. Simon, R. N. Singaraju, N. Smirnov, R. Snellings, G. Sood, P. Sorensen, J. Sowinski, J. Speltz, H. M. Spinka, B. Srivastava, A. Stadnik, T. D. S. Stanislaus, R. Stock, A. Stolpovsky, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, E. Sugarbaker, M. Sumbera, B. Surrow, M. Swanger, T. J. M. Symons, A. Szanto de Toledo, A. Tai, J. Takahashi, A. H. Tang, T. Tarnowsky, D. Thein, J. H. Thomas, A. R. Timmins, S. Timoshenko, M. Tokarev, T. A. Trainor, S. Trentalange, R. E. Tribble, O. D. Tsai, J. Ulery, T. Ullrich, D. G. Underwood, G. Van Buren, N. van der Kolk, M. van Leeuwen, A. M. Vander Molen, R. Varma, I. M. Vasilevski, A. N. Vasiliev, R. Vernet, S. E. Vigdor, Y. P. Viyogi, S. Vokal, S. A. Voloshin, W. T. Waggoner, F. Wang, G. Wang, X. L. Wang, Y. Wang, Z. M. Wang, H. Ward, J. W. Watson, J. C. Webb, G. D. Westfall, A. Wetzler, C. Whitten Jr., H. Wieman, S. W. Wissink, R. Witt, J. Wood, J. Wu, N. Xu, Z. Xu, Z. Z. Xu, E. Yamamoto, P. Yepes, I-K. Yoo, V. I. Yurevich, I. Zborovsky, H. Zhang, W. M. Zhang, Y. Zhang, Z. P. Zhang, C. Zhong, R. Zoulkarneev, Y. Zoulkarneeva, A. N. Zubarev, and J. X. Zuo
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Proton, Meson, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Lambda, Lambda baryon, 01 natural sciences, Baryon, Nuclear physics, Correlation function (statistical mechanics), 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We report on p-Lambda, p-(Lambda) over bar, (p) over bar-Lambda, and (p) over bar-(Lambda) over bar correlation functions constructed in central Au-Au collisions at root s(NN) = 200 GeV by the STAR experiment at RHIC. The proton and lambda source size is inferred from the p-Lambda and (p) over bar-(Lambda) over bar correlation functions. It is found to be smaller than the pion source size also measured by the STAR experiment at smaller transverse masses, in agreement with a scenario of a strong universal collective flow. The p-(Lambda) over bar and (p) over bar-Lambda correlation functions, which are measured for the first time, exhibit a large anticorrelation. Annihilation channels and/or a negative real part of the spin-averaged scattering length must be included in the final-state interactions calculation to reproduce the measured correlation function.
Published: 2006
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42. Neutral kaon interferometry in Au+Au collisions atsNN=200GeV

Author: Sergey Timoshenko, T. J. Humanic, N. T. Porile, H. Zhang, J. W. Harris, Beomkyu Kim, G. Wang, R. Varma, Yu A. Matulenko, T. P. Burton, J. Takahashi, J. W. Watson, B. Stringfellow, P. Seyboth, M. L. Miller, J. X. Zuo, A. Ogawa, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, T. S. McShane, E. M. Kislov, S. V. Razin, J. G. Cramer, A. Stolpovsky, S. Kabana, Y. P. Viyogi, Anthony R. Timmins, L. Kotchenda, S. Hepplemann, M. Kramer, G. Eppley, S. LaPointe, K. Kang, D. Magestro, R. Fatemi, Zhenyu Zhang, P. Yepes, V. Eckardt, A. Stadnik, M. J. Horner, M. R. Cosentino, T. Dietel, B. Haag, K. Krueger, Peter Martin Jacobs, T. W. Henry, F. Laue, A. Szanto de Toledo, J. Kapitan, F. Benedosso, S. M. Dogra, A. M. Vander Molen, Y. Lu, Mirko Planinic, K. Schweda, J. Pluta, Renaud Vernet, E. Hjort, N. Gupta, W. J. Llope, R. Picha, J. Speltz, S. B. Nurushev, Gregory Rakness, T. G. Dedovich, T. Sakuma, S. C. Phatak, M. S. Daugherity, A. H. Tang, H. Liu, A. Chikanian, T. Pawlak, S. Chattopadhyay, Sergey Voloshin, Christine Nattrass, Jay Roberts, W. He, M. Cherney, J. S. Wang, S. M. Guertin, L. C. Bland, Alexandre Alarcon Do Passo Suaide, Z. Chajecki, M. S. Ganti, J. Engelage, A. Kumar, F. Du, X. Lin, I. Selyuzhenkov, Thomas Michael Cormier, John N. Wood, C-Q. Li, J. Reinnarth, G. Van Buren, M. Sarsour, H. Long, M. Heinz, Lee Stuart Barnby, L. V. Nogach, R. P. Scharenberg, Christina Markert, M. DePhillips, Michal Sumbera, V. I. Kravtsov, D. P. Mahapatra, Premomoy Ghosh, J. M. Landgraf, A. A. Kuznetsov, M. Pachr, L. Liu, H. S. Matis, V. Fine, D. K. Mishra, C. Perkins, R. E. Tribble, T. W. Ludlam, Jaroslav Bielcik, C. F. Moore, J. Porter, D. G. Underwood, T. Peitzmann, J. Baudot, V. Perevoztchikov, J. M. Nelson, Gerald W Hoffmann, K. Filimonov, E. W. Hughes, W. W. Jacobs, M. Strikhanov, Y. Bai, D. Arkhipkin, S. Bekele, Z. Xu, G. Lin, Jie Liu, Yan Li, W. Peryt, Jorn Henning Putschke, M. R. Dutta Mazumdar, O. V. Rogachevskiy, J. Lauret, Wen-Qing Shen, K. L. Kowalik, J. Castillo, R. V. Cadman, S. W. Wissink, Sergey Panitkin, A. V. Brandin, Y. Zhang, N. Schmitz, Raimond Snellings, J. Ulery, S. L. Blyth, E. Shahaliev, Q. H. Xu, Jianhong Wu, M. Shao, Guo-Liang Ma, Z. J. Sun, J. Sandweiss, Z. Liu, R. Lednicky, L. Molnar, H. G. Ritter, V. Ghazikhanian, Nikola Poljak, T. J. Hallman, J. Cheng, W. A. Love, S. E. Vigdor, Christian Claude Kuhn, O. Barannikova, R. Bellwied, H. Jiang, L. Gaillard, T. J. M. Symons, M. Calderon De La Barca Sanchez, J. L. Romero, Adam Ryszard Kisiel, P. S. Sazhin, E. Finch, H. J. Crawford, A. S. Hirsch, J. C. Webb, P. Kravtsov, B. D. Anderson, Souvik Das, O. Catu, R. Witt, Morton Kaplan, X. Z. Cai, P. Djawotho, Bernd Surrow, Basanta Kumar Nandi, A. Kocoloski, Q. Li, W. T. Waggoner, J. Sowinski, B. I. Abelev, A. Shabetai, Pawan Kumar Netrakanti, I. K. Yoo, Y. G. Gorbunov, S. Mioduszewski, V. A. Okorokov, S. Dash, V. Yu Khodyrev, C. A. Gagliardi, C. Roy, N. van der Kolk, Madan M. Aggarwal, Fuqiang Wang, E. G. Judd, O. G. Grebenyuk, V. B. Dunin, M. Oldenburg, C. Mironov, J. Fedorisin, B. K. Srivastava, I. M. Vasilevski, M. Swanger, H. Gos, B. V.K.S. Potukuchi, J. E. Gonzalez, Y. Fisyak, Yu-Gang Ma, P. Chaloupka, Bedangadas Mohanty, S. Bhardwaj, V. I. Yurevich, W. L. Zhan, Boris Hippolyte, J. C. Dunlop, S. Lehocka, J. H. Chen, Frank Simon, M. Bystersky, Zubayer Ahammed, M. J. LeVine, D. Thein, M. Kopytine, J. Fu, M. Tokarev, T. D. S. Stanislaus, H. H. Wieman, L. K. Mangotra, R. Manweiler, A. M. Poskanzer, V. V. Belaga, C. A. Whitten, A. Kechechyan, Andre Mischke, S. Lange, Jana Bielcikova, S. J. Lindenbaum, N. Xu, P. Filip, G. D. Westfall, Petr Jákl, F. Retiere, N. G. Minaev, F. Jia, P. Sorensen, Peter Graham Jones, L. Didenko, R. S. Longacre, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, A. Bellingeri-Laurikainen, G. Igo, J. Bouchet, J. Millane, S. R. Klein, Andrew Rose, T. Tarnowsky, D. L. Olson, Y. Zhao, G. Sood, R. N. Singaraju, A. P. Meschanin, B. E. Bonner, A. A. Derevschikov, O. D. Tsai, Manish Sharma, A. N. Zubarev, Sevil Salur, Y. Wang, Y. Panebratsev, P. Fachini, D. Grosnick, V. Kouchpil, K. S.F.F. Guimaraes, H. M. Spinka, A. Tai, J. Amonett, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, C-H. Lee, T. K. Nayak, Matthew J. Anderson, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, A. Ridiger, Thorsten Sven Kollegger, T. Ullrich, L. Martin, R. Zoulkarneev, D. D. Koetke, J. E. Draper, C. J. McClain, J. P. Coffin, E. Sugarbaker, H. Z. Huang, S. Vokal, X. L. Wang, C. Zhong, M. van Leeuwen, X. Dong, S. K. Pal, A. Bravar, J. Kiryluk, R. L. Ray, E. Potrebenikova, D. A. Morozov, J. H. Thomas, T. Ljubicic, L. Ruan, G. S. Averichev, H. Caines, Sudhir Raniwala, S. S. Shimanskiy, D. Relyea, W. Christie, A. I. Kulikov, W. M. Zhang, Andrey Vasiliev, Janet Elizabeth Seger, A. M. Hoffman, A. I. Pavlinov, F. Liu, T. D. Gutierrez, B. Erazmus, D. Cebra, S. Trentalange, M. Estienne, Yu Melnick, R. D. Majka, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, S. Margetis, J. Schambach, Anju Bhasin, M. Potekhin, A. Lebedev, M. M. de Moura, M. Botje, David Lynn, A. Wetzler, M. J. Russcher, A. Hamed, J. G. Ma, Marcelo Gameiro Munhoz, D. J. Prindle, M. A. Lisa, and W. J. Dong
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Strong interaction, Lattice QCD, Bose–Einstein correlations, Lambda, 01 natural sciences, Nuclear physics, Interferometry, Pion, Correlation function, 0103 physical sciences, Transverse mass, 010306 general physics
Abstract: We present the first statistically meaningful results fromtwo-K0s interferometry in heavy-ion collisions. A model that takes theeffect of the strong interaction into account has been used to fit themeasured correlation function. The effects of single and coupled channelwere explored. At the mean transverse mass m_T = 1.07 GeV, we obtain thevalues R = 4.09 +- 0.46 (stat.) +- 0.31 (sys) fm and lambda = 0.92 +-0.23 (stat) +- 0.13 (sys), where R and lambda are the invariant radiusand chaoticity parameters respectively. The results are qualitativelyconsistent with m_T systematics established with pions in a scenariocharacterized by a strong collective flow.
Published: 2006
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43. Identified Baryon and Meson Distributions at Large Transverse Momenta fromAu+AuCollisions atsNN=200 GeV

Author: A. Tai, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, C. A. Whitten, G. Sood, J. Engelage, Claude Andre Pruneau, T. Ullrich, T. P. Burton, Z. Xu, G. Lin, R. Zoulkarneev, A. Stolpovsky, V. Emelianov, A. K. Bhati, D. Keane, J. Speltz, S. Lange, John N. Wood, R. L. Ray, M. DePhillips, E. Potrebenikova, L. Kotchenda, S. Hepplemann, Nikolai Smirnov, R. Stock, X. L. Wang, M. Heinz, Lee Stuart Barnby, C. Zhong, J. Mitchell, L. G. Efimov, M. van Leeuwen, X. Dong, S. K. Pal, R. V. Cadman, A. Bravar, Jana Bielcikova, T. Ljubicic, S. J. Lindenbaum, Premomoy Ghosh, Jorn Henning Putschke, H. Caines, Sudhir Raniwala, J. M. Landgraf, S. S. Shimanskiy, D. Relyea, A. V. Brandin, W. J. Llope, Michal Sumbera, O. G. Grebenyuk, C-H. Lee, T. K. Nayak, Jaroslav Bielcik, Raimond Snellings, L. K. Mangotra, Jianhong Wu, R. N. Singaraju, V. B. Dunin, Marcelo Gameiro Munhoz, D. J. Prindle, M. Strikhanov, S. L. Blyth, Y. Bai, S. E. Vigdor, Christian Claude Kuhn, H. Long, A. P. Meschanin, E. Sugarbaker, J. Castillo, S. W. Wissink, Y. Zhang, S. Vokal, J. Sandweiss, Z. Liu, M. R. Dutta Mazumdar, R. Manweiler, N. Xu, P. Filip, Y. Panebratsev, D. Grosnick, V. Kouchpil, J. Fedorisin, M. A. Lisa, O. V. Rogachevskiy, Nikola Poljak, R. Fatemi, Hao-Ze Chen, M. Calderon De La Barca Sanchez, G. D. Westfall, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, A. M. Poskanzer, D. Magestro, W. J. Dong, K. Krueger, W. A. Love, J. Kiryluk, Manish Sharma, D. P. Mahapatra, W. T. Waggoner, W. Christie, A. I. Kulikov, K. Kang, H. M. Spinka, B. E. Bonner, W. M. Zhang, O. D. Tsai, Yinina Ma, Andrey Vasiliev, A. M. Vander Molen, M. Shao, Petr Jákl, J. Ulery, D. A. Morozov, M. J. Horner, A. Ridiger, B. D. Anderson, Madan M. Aggarwal, Thorsten Sven Kollegger, Fuqiang Wang, A. Kechechyan, Andre Mischke, B. Haag, R. Picha, Q. H. Xu, R. S. Longacre, H. G. Ritter, M. Oldenburg, E. Hjort, A. N. Zubarev, O. Catu, Zhenyu Zhang, L. Martin, F. Laue, A. Szanto de Toledo, J. Kapitan, H. Zhang, I. K. Yoo, Y. G. Gorbunov, Debasish Das, Raghunath Sahoo, G. Eppley, Janet Elizabeth Seger, Gregory Rakness, A. M. Hoffman, O. Barannikova, R. Bellwied, B. V.K.S. Potukuchi, B. Erazmus, T. Dietel, Sergey Voloshin, Christine Nattrass, W. He, S. M. Dogra, M. A.C. Lamont, A. Bellingeri-Laurikainen, D. D. Koetke, G. Igo, J. E. Draper, C. J. McClain, V. I. Yurevich, Xu Cai, J. Pluta, N. Gupta, L. Gaillard, Z. Chajecki, V. Y. Khodyrev, M. Cherney, M. R. Cosentino, J. Bouchet, Frank Simon, Sevil Salur, Y. Wang, D. Thein, A. I. Pavlinov, P. Fachini, Thomas Michael Cormier, C. Perkins, J. P. Coffin, Jie Liu, T. Pawlak, F. Liu, J. Millane, Vitaly Okorokov, Mirko Planinic, V. Ghazikhanian, D. Cebra, K. S.F.F. Guimaraes, A. Kocoloski, M. Sarsour, T. Peitzmann, Q. Li, E. G. Judd, Jay Roberts, Bernd Surrow, M. Pachr, M. Kopytine, J. Fu, Z. J. Sun, S. Trentalange, M. Estienne, S. Dash, X. Lin, Matthew J. Anderson, F. Benedosso, J. L. Romero, B. I. Abelev, Pawan Kumar Netrakanti, J. X. Zuo, R. E. Tribble, N. G. Minaev, M. Tokarev, Yu Melnick, T. D. Gutierrez, N. S. Nepali, P. S. Sazhin, J. H. Thomas, J. E. Gonzalez, R. D. Majka, E. Finch, H. M. Liu, Andrew Rose, Y. Zhao, C. A. Gagliardi, Gerald W Hoffmann, H. Bichsel, G. Odyniec, M. S. Daugherity, J. Baudot, W. Zhan, Y. Zoulkarneeva, M. L. Miller, Bedangadas Mohanty, L. Ruan, N. van der Kolk, S. Margetis, J. Schambach, M. Potekhin, S. R. Klein, T. Tarnowsky, N. L. Subba, Anju Bhasin, D. G. Underwood, P. Djawotho, S. LaPointe, L. C. Bland, D. L. Olson, T. W. Henry, Morton Kaplan, T. D. S. Stanislaus, A. Lebedev, M. M. de Moura, G. Wang, David Lynn, M. J. Russcher, G. S. Averichev, N. Schmitz, H. H. Wieman, E. Shahaliev, M. Botje, A. A. Derevschikov, A. A. Kuznetsov, J. H. Chen, M. Bystersky, T. J. Hallman, L. Liu, V. V. Belaga, P. Seyboth, Sergey Timoshenko, T. J. M. Symons, A. Wetzler, C. F. Moore, Adam Ryszard Kisiel, P. Sorensen, T. G. Dedovich, Peter Graham Jones, A. Hamed, Wen-Qing Shen, H. J. Crawford, Jichao Wang, A. Stadnik, Peter Martin Jacobs, Guo-Liang Ma, L. Didenko, T. Sakuma, Y. Lu, J. G. Ma, S. B. Nurushev, S. C. Phatak, J. Takahashi, J. W. Watson, I. Selyuzhenkov, J. Reinnarth, G. Van Buren, A. Ogawa, A. S. Hirsch, J. W. Harris, Shengli Huang, Thomas A. Trainor, W. R. Edwards, J. C. Webb, P. Kravtsov, C-Q. Li, T. W. Ludlam, J. C. Dunlop, J. M. Nelson, R. P. Scharenberg, Christina Markert, Anthony R. Timmins, Yan Li, W. Peryt, H. S. Matis, J. Sowinski, P. Yepes, V. Eckardt, J. Porter, Renaud Vernet, Zubayer Ahammed, W. W. Jacobs, J. Lauret, Sukalyan Chattopadhyay, M. J. LeVine, Jianping Cheng, M. S. Ganti, R. Lednicky, L. Molnar, A. Kumar, F. Jia, V. Perevoztchikov, E. W. Hughes, K. L. Kowalik, Sergey Panitkin, F. Du, L. V. Nogach, V. I. Kravtsov, C. Mironov, Y. Fisyak, S. Lehocka, H. Z. Huang, V. Fine, Souvik Das, R. Witt, A. Shabetai, S. Mioduszewski, B. K. Srivastava, I. M. Vasilevski, S. Bhardwaj, Boris Hippolyte, H. Jiang, T. S. McShane, Basanta Kumar Nandi, S. V. Razin, S. Kabana, Y. P. Viyogi, A. H. Tang, A. Chikanian, T. J. Humanic, N. T. Porile, D. K. Mishra, Beomkyu Kim, D. Arkhipkin, R. Varma, Yu A. Matulenko, S. Bekele, B. Stringfellow, C. Roy, E. M. Kislov, J. G. Cramer, M. Swanger, H. Gos, P. Chaloupka, and M. Kramer
Subjects: Quark, Physics, Meson, 010308 nuclear & particles physics, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Spectral line, Nuclear physics, Baryon, Transverse plane, Antiproton, 0103 physical sciences, Pi, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Bar (unit)
Abstract: Transverse momentum spectra of pi(+/-), p, and (p) over bar p up to 12 GeV/c at midrapidity in centrality selected Au + Au collisions at root s(NN) = 200 GeV are presented. In central Au + Au collisions, both pi(+/-) and p((p) over bar) show significant suppression with respect to binary scaling at p(T) greater than or similar to 4 GeV/c. Protons and antiprotons are less suppressed than pi(+/-), in the range 1.5 less than or similar to p(T) less than or similar to 6 GeV/c. The pi(-)/pi(+) and (p) over bar /p ratios show at most a weak pT dependence and no significant centrality dependence. The p/pi ratios in central Au + Au collisions approach the values in p + p and d + Au collisions at p(T) greater than or similar to 5 GeV/c. The results at high p(T) indicate that the partonic sources of pi(+/-), p, and (p) over bar have similar energy loss when traversing the nuclear medium
Published: 2006
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44. Forward Neutral Pion Production inp+pandd+AuCollisions atsNN=200 GeV

Author: J. Adams, M. M. Aggarwal, Z. Ahammed, J. Amonett, B. D. Anderson, D. Arkhipkin, G. S. Averichev, S. K. Badyal, Y. Bai, J. Balewski, O. Barannikova, L. S. Barnby, J. Baudot, S. Bekele, V. V. Belaga, A. Bellingeri-Laurikainen, R. Bellwied, J. Berger, B. I. Bezverkhny, S. Bharadwaj, A. Bhasin, A. K. Bhati, V. S. Bhatia, H. Bichsel, J. Bielcik, J. Bielcikova, A. Billmeier, L. C. Bland, C. O. Blyth, S-L. Blyth, B. E. Bonner, M. Botje, A. Boucham, J. Bouchet, A. V. Brandin, A. Bravar, M. Bystersky, R. V. Cadman, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, O. Catu, D. Cebra, Z. Chajecki, P. Chaloupka, S. Chattopadhyay, H. F. Chen, J. H. Chen, Y. Chen, J. Cheng, M. Cherney, A. Chikanian, H. A. Choi, W. Christie, J. P. Coffin, T. M. Cormier, M. R. Cosentino, J. G. Cramer, H. J. Crawford, D. Das, S. Das, M. Daugherity, M. M. de Moura, T. G. Dedovich, M. DePhillips, A. A. Derevschikov, L. Didenko, T. Dietel, S. M. Dogra, W. J. Dong, X. Dong, J. E. Draper, F. Du, A. K. Dubey, V. B. Dunin, J. C. Dunlop, M. R. Dutta Mazumdar, V. Eckardt, W. R. Edwards, L. G. Efimov, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, P. Fachini, J. Faivre, R. Fatemi, J. Fedorisin, K. Filimonov, P. Filip, E. Finch, V. Fine, Y. Fisyak, K. S. F. Fornazier, B. D. Fox, J. Fu, C. A. Gagliardi, L. Gaillard, J. Gans, M. S. Ganti, F. Geurts, V. Ghazikhanian, P. Ghosh, J. E. Gonzalez, Y. G. Gorbunov, H. Gos, O. Grachov, O. Grebenyuk, D. Grosnick, S. M. Guertin, Y. Guo, A. Gupta, N. Gupta, T. D. Gutierrez, T. J. Hallman, A. Hamed, J. W. Harris, M. Heinz, T. W. Henry, S. Hepplemann, B. Hippolyte, A. Hirsch, E. Hjort, G. W. Hoffmann, M. J. Horner, H. Z. Huang, S. L. Huang, E. W. Hughes, T. J. Humanic, G. Igo, A. Ishihara, P. Jacobs, W. W. Jacobs, H. Jiang, P. G. Jones, E. G. Judd, S. Kabana, K. Kang, M. Kaplan, D. Keane, A. Kechechyan, V. Yu. Khodyrev, B. C. Kim, J. Kiryluk, A. Kisiel, E. M. Kislov, S. R. Klein, D. D. Koetke, T. Kollegger, M. Kopytine, L. Kotchenda, K. L. Kowalik, M. Kramer, P. Kravtsov, V. I. Kravtsov, K. Krueger, C. Kuhn, A. I. Kulikov, A. Kumar, R. Kh. Kutuev, A. A. Kuznetsov, R. Lamb, M. A. C. Lamont, J. M. Landgraf, S. Lange, F. Laue, J. Lauret, A. Lebedev, R. Lednicky, C-H. Lee, S. Lehocka, M. J. LeVine, C. Li, Q. Li, Y. Li, G. Lin, S. J. Lindenbaum, M. A. Lisa, F. Liu, H. Liu, J. Liu, L. Liu, Q. J. Liu, Z. Liu, T. Ljubicic, W. J. Llope, H. Long, R. S. Longacre, M. Lopez-Noriega, W. A. Love, Y. Lu, T. Ludlam, D. Lynn, G. L. Ma, J. G. Ma, Y. G. Ma, D. Magestro, S. Mahajan, D. P. Mahapatra, R. Majka, L. K. Mangotra, R. Manweiler, S. Margetis, C. Markert, L. Martin, J. N. Marx, H. S. Matis, Yu. A. Matulenko, C. J. McClain, T. S. McShane, Yu. Melnick, A. Meschanin, M. L. Miller, N. G. Minaev, C. Mironov, A. Mischke, D. K. Mishra, J. Mitchell, S. Mioduszewski, B. Mohanty, L. Molnar, C. F. Moore, D. A. Morozov, M. G. Munhoz, B. K. Nandi, S. K. Nayak, T. K. Nayak, J. M. Nelson, P. K. Netrakanti, V. A. Nikitin, L. V. Nogach, S. B. Nurushev, G. Odyniec, A. Ogawa, V. Okorokov, M. Oldenburg, D. Olson, S. K. Pal, Y. Panebratsev, S. Y. Panitkin, A. I. Pavlinov, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, V. A. Petrov, S. C. Phatak, R. Picha, M. Planinic, J. Pluta, N. Porile, J. Porter, A. M. Poskanzer, M. Potekhin, E. Potrebenikova, B. V. K. S. Potukuchi, D. Prindle, C. Pruneau, J. Putschke, G. Rakness, R. Raniwala, S. Raniwala, O. Ravel, R. L. Ray, S. V. Razin, D. Reichhold, J. G. Reid, J. Reinnarth, G. Renault, F. Retiere, A. Ridiger, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, A. Rose, C. Roy, L. Ruan, M. J. Russcher, R. Sahoo, I. Sakrejda, S. Salur, J. Sandweiss, M. Sarsour, I. Savin, P. S. Sazhin, J. Schambach, R. P. Scharenberg, N. Schmitz, K. Schweda, J. Seger, I. Selyuzhenkov, P. Seyboth, A. Shabetai, E. Shahaliev, M. Shao, W. Shao, M. Sharma, W. Q. Shen, K. E. Shestermanov, S. S. Shimanskiy, E Sichtermann, F. Simon, R. N. Singaraju, N. Smirnov, R. Snellings, G. Sood, P. Sorensen, J. Sowinski, J. Speltz, H. M. Spinka, B. Srivastava, A. Stadnik, T. D. S. Stanislaus, R. Stock, A. Stolpovsky, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, E. Sugarbaker, M. Sumbera, B. Surrow, M. Swanger, T. J. M. Symons, A. Szanto de Toledo, A. Tai, J. Takahashi, A. H. Tang, T. Tarnowsky, D. Thein, J. H. Thomas, A. R. Timmins, S. Timoshenko, M. Tokarev, T. A. Trainor, S. Trentalange, R. E. Tribble, O. D. Tsai, J. Ulery, T. Ullrich, D. G. Underwood, G. Van Buren, N. van der Kolk, M. van Leeuwen, A. M. Vander Molen, R. Varma, I. M. Vasilevski, A. N. Vasiliev, R. Vernet, S. E. Vigdor, Y. P. Viyogi, S. Vokal, S. A. Voloshin, W. T. Waggoner, F. Wang, G. Wang, X. L. Wang, Y. Wang, Z. M. Wang, H. Ward, J. W. Watson, J. C. Webb, G. D. Westfall, A. Wetzler, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, J. Wood, J. Wu, N. Xu, Q. H. Xu, Z. Xu, Z. Z. Xu, P. Yepes, I-K. Yoo, V. I. Yurevich, I. Zborovsky, H. Zhang, W. M. Zhang, Y. Zhang, Z. P. Zhang, C. Zhong, R. Zoulkarneev, Y. Zoulkarneeva, A. N. Zubarev, and J. X. Zuo
Subjects: Physics, Quantum chromodynamics, Particle physics, Meson, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Perturbative QCD, Elementary particle, 01 natural sciences, 7. Clean energy, Gluon, Nuclear physics, Recoil, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: Measurements of the production of forward pi(0) mesons from p+p and d+Au collisions at root s(NN) = 200 GeV are reported. The p+p yield generally agrees with next-to-leading order perturbative QCD calculations. The d+Au yield per binary collision is suppressed as eta increases, decreasing to similar to 30% of the p+p yield at =4.00, well below shadowing expectations. Exploratory measurements of azimuthal correlations of the forward pi(0) with charged hadrons at eta approximate to 0 show a recoil peak in p+p that is suppressed in d+Au at low pion energy. These observations are qualitatively consistent with a saturation picture of the low-x gluon structure of heavy nuclei.
Published: 2006
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45. Strange Baryon Resonance Production insNN=200 GeVp+pandAu+AuCollisions

Author: N. Xu, P. Filip, T. P. Burton, C. Roy, Debasish Das, D. G. Underwood, R. Fatemi, A. Ridiger, D. Thein, J. X. Zuo, M. L. Miller, G. D. Westfall, S. Das, G. Eppley, J. Porter, S. LaPointe, Petr Jákl, J. Pluta, L. Molnar, J. Engelage, A. Shabetai, John N. Wood, Premomoy Ghosh, J. M. Landgraf, Christine Nattrass, M. Strikhanov, L. Martin, S. L. Blyth, G. Wang, G. Odyniec, J. Sandweiss, Z. Liu, J. Speltz, M. DePhillips, X. L. Wang, Rene Bellwied, J. Cheng, T. J. M. Symons, M. Swanger, H. Gos, M. Kopytine, J. Fu, S. R. Klein, T. Tarnowsky, V. Fine, Michal Sumbera, A. A. P. Suaide, M. J. Horner, S. Margetis, P. Chaloupka, R. Picha, M. Tokarev, O. Barannikova, D. L. Olson, B. Erazmus, M. S. Daugherity, M. van Leeuwen, X. Dong, P. Sorensen, J. Reinnarth, R. E. Tribble, C. A. Whitten, A. A. Derevschikov, L. Ruan, Y. Bai, M. Calderon De La Barca Sanchez, S. Trentalange, M. Shao, G. Van Buren, Q. H. Xu, C. J. McClain, A. Tai, S. K. Pal, G. Sood, Gerald W Hoffmann, Madan M. Aggarwal, T. Kollegger, A. I. Pavlinov, Neeraj Gupta, Fuqiang Wang, A. A. Kuznetsov, S. Y. Panitkin, D. K. Mishra, D. Cebra, A. Bravar, F. Liu, J. Castillo, O. Catu, J. Amonett, J. S. Wang, A. Stolpovsky, A. Rose, Z. J. Sun, Ilya Selyuzhenkov, S. W. Wissink, M. Estienne, Sergey Voloshin, T. W. Ludlam, S. Lange, Y. Zhang, T. D. Gutierrez, S. J. Lindenbaum, M. Cherney, J. M. Nelson, L. Kotchenda, S. Hepplemann, A. Szanto de Toledo, H. Liu, A. Chikanian, T. D. S. Stanislaus, A. N. Zubarev, R. N. Singaraju, H. H. Wieman, A. Kocoloski, Yu Melnick, A. P. Meschanin, F. Laue, Thomas Michael Cormier, Nikola Poljak, J. P. Coffin, Y. G. Ma, W. Peryt, R. D. Majka, J. Kapitan, J. Sowinski, Q. Li, J. Schambach, P. Fachini, K. S.F.F. Guimaraes, M. Heinz, J. E. Draper, T. Pawlak, E. Potrebenikova, Marcelo Gameiro Munhoz, D. J. Prindle, Michael Kramer, V. Emelianov, A. K. Bhati, J. H. Thomas, E. Sugarbaker, Anju Bhasin, D. Keane, K. Kang, A. V. Brandin, T. J. Humanic, D. Arkhipkin, A. Hamed, Guo-Liang Ma, T. Ljubicic, X. Lin, H. Z. Huang, S. Vokal, R. Stock, A. Lebedev, M. M. de Moura, V. V. Belaga, F. Retiere, S. Bekele, M. Botje, Manish Sharma, H. Caines, Sudhir Raniwala, N. G. Minaev, L. K. Mangotra, M. A. Lisa, S. E. Vigdor, J. E. Gonzalez, W. J. Dong, B. D. Anderson, G. Lin, S. S. Shimanskiy, D. Relyea, R. Manweiler, J. W. Harris, Morton Kaplan, V. I. Yurevich, X. Z. Cai, Bedangadas Mohanty, J. Kiryluk, J. H. Chen, Rajarshi Ray, E. P. Sichtermann, Y. Fisyak, F. Jia, W. He, Y. Li, S. M. Guertin, F. Du, Camelia Mironov, Thomas Dietel, L. V. Nogach, Christian Claude Kuhn, L. Liu, H. Bichsel, Y. Zoulkarneeva, C. Zhong, L. G. Efimov, Z. P. Zhang, A. S. Hirsch, V. I. Kravtsov, P. M. Jacobs, P. Kravtsov, Peter Graham Jones, O. G. Grebenyuk, M. Potekhin, V. B. Dunin, J. Balewski, J. Fedorisin, D. A. Morozov, W. Christie, R. S. Longacre, L. Didenko, H. Jiang, C-H. Lee, T. K. Nayak, D. P. Mahapatra, Rashmi Raniwala, W. L. Zhan, Claude Andre Pruneau, Sadhana Dash, A. Kechechyan, Andre Mischke, S. Lehocka, A. Stadnik, Frank Simon, David Lynn, A. I. Kulikov, I-K. Yoo, W. M. Zhang, R. V. Cadman, Andrey Vasiliev, Jianhong Wu, T. Ullrich, Y. Panebratsev, Basanta Kumar Nandi, M. J. Russcher, J. Takahashi, P. Seyboth, J. C. Webb, D. Grosnick, M. A. C. Lamont, S. B. Nurushev, M. R. Cosentino, V. Kouchpil, A. Wetzler, R. Zoulkarneev, Anthony Robert Timmins, Adam Ryszard Kisiel, H. J. Crawford, M. Bystersky, Vitaly Okorokov, Janet Elizabeth Seger, Raghunath Sahoo, A. M. Hoffman, F. Benedosso, B. I. Abelev, A. M. Poskanzer, J. G. Ma, A. Bellingeri-Laurikainen, P. Yepes, V. Eckardt, Renaud Vernet, G. S. Averichev, G. Igo, M. Oldenburg, Z. Z. Xu, T. W. Henry, W. T. Waggoner, J. Bouchet, Nikita Smirnov, Bernd Surrow, J. Ulery, Y. G. Gorbunov, J. Millane, B. E. Bonner, O. D. Tsai, A. H. Tang, H. G. Ritter, T. G. Dedovich, Y. Zhao, W. Q. Shen, Sukalyan Chattopadhyay, B. Haag, R.J.M. Snellings, K. Schweda, M. S. Ganti, T. J. Hallman, L. Gaillard, Sevil Salur, E. G. Judd, Pawan Kumar Netrakanti, R. Witt, S. Mioduszewski, V. Yu Khodyrev, Y. P. Lu, B. K. Srivastava, I. M. Vasilevski, S. Bhardwaj, S. C. Phatak, A. Kumar, Boris Hippolyte, J. C. Dunlop, Zubayer Ahammed, M. J. LeVine, Z. Chajecki, V. Perevoztchikov, Sunil Dogra, K. Filimonov, E. W. Hughes, S. V. Razin, L. Gaudichet, Jay Roberts, K. Krueger, C. A. Gagliardi, C. F. Moore, K. L. Kowalik, C-Q. Li, C. Perkins, L. C. Bland, N. van der Kolk, H. M. Spinka, M. Pachr, T. Peitzmann, Lee Stuart Barnby, R. P. Scharenberg, Christina Markert, H. S. Matis, Jaroslav Bielcik, W. W. Jacobs, J. Lauret, M. R. Dutta Mazumdar, O. V. Rogachevskiy, R. Lednicky, W. A. Love, D. D. Koetke, A. M. Vander Molen, B. V. K. S. Potukuchi, E. Hjort, Gregory Rakness, S. Timoshenko, J. Putschke, J. W. Watson, A. Ogawa, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, M. Sarsour, Mirko Planinic, Michael W. Anderson, N. Schmitz, E. Shahaliev, V. Ghazikhanian, Jana Bielcikova, J. L. Romero, P. S. Sazhin, E. Finch, T. S. McShane, S. Kabana, Y. P. Viyogi, Tai Sakuma, N. T. Porile, Beomkyu Kim, R. Varma, Yu A. Matulenko, B. Stringfellow, Y. Wang, E. M. Kislov, J. G. Cramer, J. Baudot, J. W. Mitchell, P. Djawotho, D. Magestro, W. J. Llope, H. Long, Jie Liu, and H. Zhang
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Star (game theory), Hadron, General Physics and Astronomy, Resonance, Lambda, 01 natural sciences, Spectral line, Baryon, 0103 physical sciences, Production (computer science), Nuclear Experiment, 010306 general physics
Abstract: We report the measurements of $\ensuremath{\Sigma}(1385)$ and $\ensuremath{\Lambda}(1520)$ production in $p+p$ and $\mathrm{Au}+\mathrm{Au}$ collisions at $\sqrt{{s}_{NN}}=200\text{ }\text{ }\mathrm{GeV}$ from the STAR Collaboration. The yields and the ${p}_{T}$ spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central $\mathrm{Au}+\mathrm{Au}$ collisions. Our results indicate that there may be a time span between chemical and thermal freeze-out during which elastic hadronic interactions occur.
Published: 2006
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46. Multiplicity dependence of inclusiveptspectra fromp−pcollisions ats=200 GeV

Author: Michael Kramer, Bernd Surrow, Pawan Kumar Netrakanti, G. Eppley, Guo-Liang Ma, C. A. Gagliardi, N. van der Kolk, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, M. Pachr, V. I. Yurevich, J. W. Harris, W. L. Zhan, Frank Simon, O. G. Grebenyuk, V. Ghazikhanian, J. C. Dunlop, R. S. Longacre, Lee Stuart Barnby, Jie Liu, H. Jiang, Jaroslav Bielcik, B. V. K. S. Potukuchi, M. R. Dutta Mazumdar, O. V. Rogachevskiy, A. Ridiger, W. A. Love, D. D. Koetke, J. Pluta, J. Speltz, E. P. Sichtermann, Jana Bielcikova, N. T. Porile, Basanta Kumar Nandi, J. L. Romero, L. Molnar, Zubayer Ahammed, Z. P. Zhang, A. Wetzler, J. Balewski, Rashmi Raniwala, V. B. Dunin, Y. Fisyak, R. Fatemi, Y. Panebratsev, M. J. LeVine, J. H. Thomas, J. Fedorisin, Christine Nattrass, A. S. Hirsch, P. M. Jacobs, P. Kravtsov, G. Lin, T. Kollegger, A. I. Pavlinov, F. Liu, Rene Bellwied, P. Yepes, V. Eckardt, Renaud Vernet, Beomkyu Kim, Claude Andre Pruneau, A. Stolpovsky, P. S. Sazhin, A. M. Poskanzer, C. O. Blyth, R. E. Tribble, B. Erazmus, R. Varma, Yu A. Matulenko, R. V. Cadman, Jianhong Wu, Raghunath Sahoo, A. Bellingeri-Laurikainen, G. Igo, M. Oldenburg, V. Petrov, T. Ullrich, A. A. Kuznetsov, S. Y. Panitkin, J. S. Wang, E. Finch, D. Grosnick, V. Kouchpil, J. Putschke, M. R. Cosentino, F. Benedosso, S. Lehocka, Sergey Voloshin, J. Ulery, H. G. Ritter, R. Picha, L. K. Mangotra, M. DePhillips, Michal Sumbera, A. A. P. Suaide, L. Gaillard, F. Retiere, N. G. Minaev, B. Stringfellow, H. Liu, A. Chikanian, Gerald W Hoffmann, J. Bouchet, R. Zoulkarneev, Y. Bai, A. H. Tang, J. W. Watson, A. N. Zubarev, P. Seyboth, L. Kotchenda, S. Hepplemann, R. Manweiler, L. Martin, Y. Wang, T. S. McShane, A. Ogawa, Z. Z. Xu, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, G. S. Averichev, T. D. Gutierrez, F. Laue, J. Castillo, N. Xu, P. Filip, S. W. Wissink, Neeraj Gupta, D. Cebra, A. M. Vander Molen, M. Estienne, C-Q. Li, Y. Zhao, T. G. Dedovich, Sukalyan Chattopadhyay, R.J.M. Snellings, M. Cherney, E. Hjort, Thomas Michael Cormier, R. D. Majka, J. Sowinski, L. Liu, I-K. Yoo, A. Szanto de Toledo, J. Kapitan, Debasish Das, T. J. Humanic, D. Arkhipkin, A. Hamed, X. L. Wang, J. Porter, S. Bekele, M. J. Horner, Y. Zhang, Yu Melnick, R. P. Scharenberg, Christina Markert, Gregory Rakness, Nikita Smirnov, H. Zhang, H. S. Matis, B. E. Bonner, Q. H. Xu, B. I. Bezverkhny, S. Margetis, M. S. Ganti, S. C. Phatak, A. Kumar, P. Fachini, J. Baudot, S. V. Razin, J. Schambach, G. D. Westfall, S. Das, M. van Leeuwen, X. Dong, W. J. Llope, O. D. Tsai, S. Timoshenko, K. S.F.F. Guimaraes, Nikola Poljak, I. Sakrejda, T. J. Hallman, T. W. Henry, W. Christie, W. T. Waggoner, S. K. Pal, W. W. Jacobs, A. Bravar, A. I. Kulikov, J. Lauret, Marcelo Gameiro Munhoz, D. J. Prindle, Y. P. Lu, T. Pawlak, C. Roy, A. Kechechyan, Andre Mischke, A. Stadnik, Petr Jákl, R. N. Singaraju, J. X. Zuo, A. P. Meschanin, C. J. McClain, Jay Roberts, Y. Guo, V. Perevoztchikov, W. M. Zhang, Andrey Vasiliev, Sunil Dogra, K. Filimonov, E. W. Hughes, B. D. Anderson, J. R. Adams, B. Haag, K. Schweda, J. E. Draper, E. Potrebenikova, S. Kabana, W. Q. Shen, F. Du, R. Lednicky, K. L. Kowalik, Camelia Mironov, M. L. Miller, T. Ljubicic, Y. P. Viyogi, L. C. Bland, Thomas Dietel, Y. Li, S. M. Guertin, Ilya Selyuzhenkov, A. Shabetai, J. W. Mitchell, G. Wang, L. V. Nogach, H. Caines, Sudhir Raniwala, M. A. Lisa, M. Swanger, S. R. Klein, H. Gos, T. Tarnowsky, P. Chaloupka, W. J. Dong, S. S. Shimanskiy, S. LaPointe, Manish Sharma, Janet Elizabeth Seger, J. Engelage, V. I. Kravtsov, K. Krueger, D. Thein, D. Relyea, D. G. Underwood, O. Barannikova, D. L. Olson, Mirko Planinic, J. Takahashi, E. M. Kislov, M. S. Daugherity, John N. Wood, Anju Bhasin, C. F. Moore, D. P. Mahapatra, S. Trentalange, Z. Chajecki, M. Sarsour, M. Calderon De La Barca Sanchez, J. G. Cramer, Sevil Salur, Michael W. Anderson, V. Fine, M. Kopytine, J. Fu, J. P. Coffin, M. A. C. Lamont, P. Djawotho, Z. J. Sun, H. Bichsel, S. B. Nurushev, Yu Chen, Y. Zoulkarneeva, H. M. Spinka, O. Catu, H. A. Choi, A. V. Brandin, A. A. Derevschikov, Premomoy Ghosh, K. Kang, M. Tokarev, A. Lebedev, C. Zhong, C. Perkins, M. Potekhin, A. Tai, J. M. Landgraf, M. M. de Moura, E. Sugarbaker, Q. Li, N. Schmitz, J. Cheng, T. Peitzmann, Anthony Robert Timmins, V. V. Belaga, S. E. Vigdor, M. Heinz, G. Sood, Adam Ryszard Kisiel, M. Strikhanov, H. Z. Huang, T. J. M. Symons, E. Shahaliev, David Lynn, M. Botje, Y. G. Gorbunov, M. J. Russcher, Christian Claude Kuhn, J. Amonett, F. Jia, C. A. Whitten, D. Magestro, S. Vokal, S. L. Blyth, W. He, R. Witt, H. Long, H. J. Crawford, Peter Graham Jones, T. D. S. Stanislaus, J. C. Webb, L. Ruan, H. H. Wieman, G. Odyniec, J. Sandweiss, Z. Liu, S. Mioduszewski, V. Yu Khodyrev, L. Didenko, V. Emelianov, A. K. Bhati, J. G. Ma, A. Rose, E. G. Judd, S. Lange, B. K. Srivastava, I. M. Vasilevski, D. Keane, S. J. Lindenbaum, Morton Kaplan, J. Kiryluk, J. H. Chen, Rajarshi Ray, J. Gans, X. Z. Cai, S. Bhardwaj, J. E. Gonzalez, R. Stock, Bedangadas Mohanty, Boris Hippolyte, P. Sorensen, J. Reinnarth, D. A. Morozov, M. Shao, G. Van Buren, L. G. Efimov, T. W. Ludlam, C-H. Lee, T. K. Nayak, M. Lopez-Noriega, J. M. Nelson, M. Bystersky, Y. G. Ma, W. Peryt, V. A. Nikitin, and Vitaly Okorokov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, 0103 physical sciences, Multiplicity (chemistry), 010306 general physics, 01 natural sciences
Published: 2006
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47. Longitudinal double-spin asymmetry and cross section for inclusive jet production in polarized proton collisions at square root of s = 200 GeV

Author: B I, Abelev, M M, Aggarwal, Z, Ahammed, J, Amonett, B D, Anderson, M, Anderson, D, Arkhipkin, G S, Averichev, Y, Bai, J, Balewski, O, Barannikova, L S, Barnby, J, Baudot, S, Bekele, V V, Belaga, A, Bellingeri-Laurikainen, R, Bellwied, F, Benedosso, S, Bhardwaj, A, Bhasin, A K, Bhati, H, Bichsel, J, Bielcik, J, Bielcikova, L C, Bland, S-L, Blyth, B E, Bonner, M, Botje, J, Bouchet, A V, Brandin, A, Bravar, T P, Burton, M, Bystersky, R V, Cadman, X Z, Cai, H, Caines, M Calderón de la Barca, Sánchez, J, Castillo, O, Catu, D, Cebra, Z, Chajecki, P, Chaloupka, S, Chattopadhyay, H F, Chen, J H, Chen, J, Cheng, M, Cherney, A, Chikanian, W, Christie, J P, Coffin, T M, Cormier, M R, Cosentino, J G, Cramer, H J, Crawford, D, Das, S, Das, S, Dash, M, Daugherity, M M, de Moura, T G, Dedovich, M, Dephillips, A A, Derevschikov, L, Didenko, T, Dietel, P, Djawotho, S M, Dogra, W J, Dong, X, Dong, J E, Draper, F, Du, V B, Dunin, J C, Dunlop, M R Dutta, Mazumdar, V, Eckardt, W R, Edwards, L G, Efimov, V, Emelianov, J, Engelage, G, Eppley, B, Erazmus, M, Estienne, P, Fachini, R, Fatemi, J, Fedorisin, P, Filip, E, Finch, V, Fine, Y, Fisyak, J, Fu, C A, Gagliardi, L, Gaillard, M S, Ganti, V, Ghazikhanian, P, Ghosh, J E, Gonzalez, Y G, Gorbunov, H, Gos, O, Grebenyuk, D, Grosnick, S M, Guertin, K S F F, Guimaraes, N, Gupta, T D, Gutierrez, B, Haag, T J, Hallman, A, Hamed, J W, Harris, W, He, M, Heinz, T W, Henry, S, Hepplemann, B, Hippolyte, A, Hirsch, E, Hjort, A M, Hoffman, G W, Hoffmann, M J, Horner, H Z, Huang, S L, Huang, E W, Hughes, T J, Humanic, G, Igo, P, Jacobs, W W, Jacobs, P, Jakl, F, Jia, H, Jiang, P G, Jones, E G, Judd, S, Kabana, K, Kang, J, Kapitan, M, Kaplan, D, Keane, A, Kechechyan, V Yu, Khodyrev, B C, Kim, J, Kiryluk, A, Kisiel, E M, Kislov, S R, Klein, A, Kocoloski, D D, Koetke, T, Kollegger, M, Kopytine, L, Kotchenda, V, Kouchpil, K L, Kowalik, M, Kramer, P, Kravtsov, V I, Kravtsov, K, Krueger, C, Kuhn, A I, Kulikov, A, Kumar, A A, Kuznetsov, M A C, Lamont, J M, Landgraf, S, Lange, S, LaPointe, F, Laue, J, Lauret, A, Lebedev, R, Lednicky, C-H, Lee, S, Lehocka, M J, LeVine, C, Li, Q, Li, Y, Li, G, Lin, X, Lin, S J, Lindenbaum, M A, Lisa, F, Liu, H, Liu, J, Liu, L, Liu, Z, Liu, T, Ljubicic, W J, Llope, H, Long, R S, Longacre, W A, Love, Y, Lu, T, Ludlam, D, Lynn, G L, Ma, J G, Ma, Y G, Ma, D, Magestro, D P, Mahapatra, R, Majka, L K, Mangotra, R, Manweiler, S, Margetis, C, Markert, L, Martin, H S, Matis, Yu A, Matulenko, C J, McClain, T S, McShane, Yu, Melnick, A, Meschanin, J, Millane, M L, Miller, N G, Minaev, S, Mioduszewski, C, Mironov, A, Mischke, D K, Mishra, J, Mitchell, B, Mohanty, L, Molnar, C F, Moore, D A, Morozov, M G, Munhoz, B K, Nandi, C, Nattrass, T K, Nayak, J M, Nelson, P K, Netrakanti, L V, Nogach, S B, Nurushev, G, Odyniec, A, Ogawa, V, Okorokov, M, Oldenburg, D, Olson, M, Pachr, S K, Pal, Y, Panebratsev, S Y, Panitkin, A I, Pavlinov, T, Pawlak, T, Peitzmann, V, Perevoztchikov, C, Perkins, W, Peryt, S C, Phatak, R, Picha, M, Planinic, J, Pluta, N, Poljak, N, Porile, J, Porter, A M, Poskanzer, M, Potekhin, E, Potrebenikova, B V K S, Potukuchi, D, Prindle, C, Pruneau, J, Putschke, G, Rakness, R, Raniwala, S, Raniwala, R L, Ray, S V, Razin, J, Reinnarth, D, Relyea, A, Ridiger, H G, Ritter, J B, Roberts, O V, Rogachevskiy, J L, Romero, A, Rose, C, Roy, L, Ruan, M J, Russcher, R, Sahoo, T, Sakuma, S, Salur, J, Sandweiss, M, Sarsour, P S, Sazhin, J, Schambach, R P, Scharenberg, N, Schmitz, J, Seger, I, Selyuzhenkov, P, Seyboth, A, Shabetai, E, Shahaliev, M, Shao, M, Sharma, W Q, Shen, S S, Shimanskiy, E P, Sichtermann, F, Simon, R N, Singaraju, N, Smirnov, R, Snellings, G, Sood, P, Sorensen, J, Sowinski, J, Speltz, H M, Spinka, B, Srivastava, A, Stadnik, T D S, Stanislaus, R, Stock, A, Stolpovsky, M, Strikhanov, B, Stringfellow, A A P, Suaide, E, Sugarbaker, M, Sumbera, Z, Sun, B, Surrow, M, Swanger, T J M, Symons, A, Szanto de Toledo, A, Tai, J, Takahashi, A H, Tang, T, Tarnowsky, D, Thein, J H, Thomas, A R, Timmins, S, Timoshenko, M, Tokarev, T A, Trainor, S, Trentalange, R E, Tribble, O D, Tsai, J, Ulery, T, Ullrich, D G, Underwood, G Van, Buren, N, van der Kolk, M, van Leeuwen, A M Vander, Molen, R, Varma, I M, Vasilevski, A N, Vasiliev, R, Vernet, S E, Vigdor, Y P, Viyogi, S, Vokal, S A, Voloshin, W T, Waggoner, F, Wang, G, Wang, J S, Wang, X L, Wang, Y, Wang, J W, Watson, J C, Webb, G D, Westfall, A, Wetzler, C, Whitten, H, Wieman, S W, Wissink, R, Witt, J, Wood, J, Wu, N, Xu, Q H, Xu, Z, Xu, P, Yepes, I-K, Yoo, V I, Yurevich, W, Zhan, H, Zhang, W M, Zhang, Y, Zhang, Z P, Zhang, Y, Zhao, C, Zhong, R, Zoulkarneev, Y, Zoulkarneeva, A N, Zubarev, and J X, Zuo
Abstract: We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive midrapidity jet production in polarized proton collisions at square root of s = 200 GeV. The cross section data cover transverse momenta 5pT50 GeV/c and agree with next-to-leading order perturbative QCD evaluations. The A(LL) data cover 5pT17 GeV/c and disfavor at 98% C.L. maximal positive gluon polarization in the polarized nucleon.
Published: 2006

48. Minijet deformation and charge-independent angular correlations on momentum subspace(η,ϕ)in Au-Au collisions atsNN=130GeV

Author: O. D. Tsai, Vitaly Okorokov, T. S. McShane, E. Sugarbaker, Y. Panebratsev, D. Grosnick, V. Kouchpil, C. Roy, S. Vokal, Sevil Salur, Y. Wang, A. Tai, J. Amonett, Bernd Surrow, R. S. Longacre, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, B. Erazmus, J. Mitchell, L. G. Efimov, C-H. Lee, T. K. Nayak, L. K. Mangotra, R. Manweiler, G. Eppley, Debasish Das, Raghunath Sahoo, I. K. Yoo, Y. G. Gorbunov, M. S. Daugherity, M. A.C. Lamont, A. Stolpovsky, Pawan Kumar Netrakanti, A. Bellingeri-Laurikainen, Hao-Ze Chen, L. Kotchenda, S. Hepplemann, Xu Cai, J. Pluta, S. V. Razin, J. Kiryluk, G. Igo, P. Seyboth, H. M. Liu, WL Zhan, A. M. Poskanzer, D. Cebra, M. Swanger, M. Calderon De La Barca Sanchez, Sergey Voloshin, Christine Nattrass, S. Trentalange, H. Gos, P. Chaloupka, J. Bouchet, O. Catu, M. Estienne, A. I. Pavlinov, F. Liu, E. G. Judd, B. Haag, Yu Melnick, C. A. Gagliardi, N. van der Kolk, A. Kechechyan, Andre Mischke, J. H. Thomas, D. A. Morozov, Andrew Rose, K. Schweda, Y. Zhao, G. Sood, N. Schmitz, E. Shahaliev, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, Q. Li, J. E. Gonzalez, C. O. Blyth, Q. H. Xu, Jianping Cheng, C-Q. Li, Jay Roberts, K. Kang, A. H. Tang, M. Pachr, R. E. Tribble, L. C. Bland, A. Chikanian, M. Potekhin, Zhijia Sun, A. A. Kuznetsov, David Lynn, S. Kabana, Y. P. Viyogi, Bedangadas Mohanty, A. M. Vander Molen, L. Liu, M. J. Russcher, T. D. Gutierrez, R. D. Majka, X. L. Wang, C. Zhong, B. I. Bezverkhny, Gerald W Hoffmann, M. Botje, I. Sakrejda, P. Fachini, D. K. Mishra, E. Hjort, J. Baudot, A. Ridiger, Thorsten Sven Kollegger, R. P. Scharenberg, Gregory Rakness, R. N. Singaraju, A. P. Meschanin, E. M. Kislov, J. C. Webb, A. Stadnik, J. G. Cramer, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, D. Arkhipkin, A. Kumar, D. Thein, S. Margetis, J. Schambach, Y. Guo, L. Ruan, M. J. Horner, M. van Leeuwen, X. Dong, W. Christie, S. Bekele, J. X. Zuo, J. Adams, Peter Martin Jacobs, A. Hamed, Wen-Qing Shen, V. Ghazikhanian, O. G. Grebenyuk, H. S. Matis, F. Du, J. G. Ma, M. Lopez-Noriega, M. Kopytine, J. Fu, V. B. Dunin, A. Ishihara, A. I. Kulikov, J. H. Chen, M. Bystersky, J. L. Romero, D. P. Mahapatra, W. M. Zhang, J. Wu, Yu Chen, J. Fedorisin, A. Bravar, Z. Chajecki, Gang Wang, Y. Lu, Marcelo Gameiro Munhoz, D. J. Prindle, Adam Ryszard Kisiel, H. Jiang, Andrey Vasiliev, P. S. Sazhin, E. Finch, M. Tokarev, J. Speltz, C. F. Moore, Nu Xu, M. Shao, M. DePhillips, J. Ulery, L. Martin, J. W. Harris, E. P. Sichtermann, L. V. Nogach, D. Magestro, R. Snellings, H. J. Crawford, H. G. Ritter, M. A. Lisa, Basanta Kumar Nandi, J. Porter, W. J. Dong, J. Balewski, S. LaPointe, Rashmi Raniwala, B. D. Anderson, C. Perkins, D. D. Koetke, Janet Elizabeth Seger, Michal Sumbera, S. B. Nurushev, Anthony R. Timmins, Claude Andre Pruneau, R. Bellwied, R. Fatemi, G. S. Averichev, P. Yepes, V. Eckardt, T. D. S. Stanislaus, Renaud Vernet, Yinina Ma, H. A. Choi, H. H. Wieman, M. Sharma, V. I. Kravtsov, J. Engelage, L. Gaillard, W. W. Jacobs, J. E. Draper, C. J. McClain, Anju Bhasin, K. Krueger, C. Mironov, T. Ullrich, John N. Wood, J. C. Dunlop, Y. Fisyak, Z. Xu, G. Lin, R. Zoulkarneev, Zhenyu Zhang, Reinhard Stock, M. R. Cosentino, Zubayer Ahammed, Premomoy Ghosh, Thomas Peitzmann, R. Picha, Anik Gupta, F. Retiere, Y. Bai, M. J. LeVine, S. Lehocka, J. Castillo, M. Kramer, J. M. Landgraf, J. P. Coffin, A. Lebedev, R. V. Cadman, W. He, J. Lauret, M. Cherney, Thomas Michael Cormier, M. Strikhanov, F. Jia, S. W. Wissink, Y. Zhang, R. L. Ray, E. Potrebenikova, M. Sarsour, T. J. Humanic, S. L. Blyth, T. G. Dedovich, M. M. de Moura, S. C. Phatak, H. Z. Huang, Christina Markert, J. Sandweiss, Z. Liu, Nikola Poljak, N. T. Porile, V. Fine, Beomkyu Kim, F. Laue, A. Szanto de Toledo, J. Kapitan, T. Ljubicic, R. Varma, W. T. Waggoner, Jian-Song Wang, Yu A. Matulenko, H. Caines, Sudhir Raniwala, B. Stringfellow, A. Shabetai, S. S. Shimanskiy, D. Relyea, Souvik Das, S. M. Dogra, A. Wetzler, R. Witt, N. G. Minaev, Morton Kaplan, S. Mioduszewski, V. Yu Khodyrev, Subrata Pal, S. Bharadwaj, B. K. Srivastava, I. M. Vasilevski, J. Gans, Boris Hippolyte, I. Selyuzhenkov, H. M. Spinka, R. Lednicky, L. Molnar, J. Reinnarth, T. Pawlak, G. Van Buren, T. W. Ludlam, J. M. Nelson, Yan Li, W. Peryt, Jorn Henning Putschke, A. V. Brandin, H. Zhang, S. E. Vigdor, Christian Claude Kuhn, Sergey Timoshenko, D. G. Underwood, P. Filip, Matthew J. Anderson, T. J. Hallman, T. J. M. Symons, J. Takahashi, J. W. Watson, A. Ogawa, Shengli Huang, Thomas A. Trainor, W. R. Edwards, T. Dietel, Mirko Planinic, G. D. Westfall, T. W. Henry, Petr Jákl, A. N. Zubarev, K. S.F.F. Guimaraes, V. V. Belaga, P. Sorensen, C. A. Whitten, S. Lange, Jana Bielcikova, S. J. Lindenbaum, Peter Graham Jones, L. Didenko, S. R. Klein, T. Tarnowsky, O. Barannikova, D. L. Olson, A. A. Derevschikov, Madan M. Aggarwal, Fuqiang Wang, M. Oldenburg, V. I. Yurevich, Frank Simon, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. A. Love, Sukalyan Chattopadhyay, M. S. Ganti, V. Perevoztchikov, K. Filimonov, E. W. Hughes, K. L. Kowalik, Sergey Panitkin, M. L. Miller, Guo-Liang Ma, A. S. Hirsch, P. Kravtsov, Jeffrey G. Reid, J. Sowinski, V. A. Nikitin, B. V.K.S. Potukuchi, Vladimir Petrov, W. J. Llope, H. Long, Jie Liu, P. Djawotho, and B. E. Bonner
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Scattering, Hadron, Elliptic flow, Parton, 01 natural sciences, Nuclear physics, Azimuth, Amplitude, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: Measurements of two-particle correlations on angular difference variables η1 − η2 (pseudorapidity) and φ1 − φ2 (azimuth) are presented for all primary charged hadrons with transverse momentum 0.15 ≤ p_t ≤ 2 GeV/c and |η| ≤ 1.3 from Au-Au collisions at √s_(NN) = 130 GeV. Large-amplitude correlations are observed over a broad range in relative angles where distinct structures appear on the same-side and away-side (i.e., relative azimuth less than π/2 or greater than π/2). The principal correlation structures include that associated with elliptic flow plus a strong, same-side peak. It is hypothesized that the latter results from correlated hadrons associated with semi-hard parton scattering in the early stage of the heavy-ion collision which produces a jet-like correlation peak at small relative angles. The width of the jet-like peak on η1 − η2 increases by a factor 2.3 from peripheral to central collisions, suggesting strong coupling of semi-hard scattered partons to a longitudinally-expanding medium. The new methods of jet analysis introduced here provide access to scattered partons at low transverse momentum well below the kinematic range where perturbative quantum chromodynamics and standard fragmentation models are applicable.
Published: 2006
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49. Scaling properties of hyperon production in Au+Au collisions at square root [sNN]=200 GeV

Author: J, Adams, M M, Aggarwal, Z, Ahammed, J, Amonett, B D, Anderson, M, Anderson, D, Arkhipkin, G S, Averichev, Y, Bai, J, Balewski, O, Barannikova, L S, Barnby, J, Baudot, S, Bekele, V V, Belaga, A, Bellingeri-Laurikainen, R, Bellwied, B I, Bezverkhny, S, Bhardwaj, A, Bhasin, A K, Bhati, H, Bichsel, J, Bielcik, J, Bielcikova, L C, Bland, C O, Blyth, S-L, Blyth, B E, Bonner, M, Botje, J, Bouchet, A V, Brandin, A, Bravar, M, Bystersky, R V, Cadman, X Z, Cai, H, Caines, M, Calderón de la Barca Sánchez, J, Castillo, O, Catu, D, Cebra, Z, Chajecki, P, Chaloupka, S, Chattopadhyay, H F, Chen, J H, Chen, Y, Chen, J, Cheng, M, Cherney, A, Chikanian, H A, Choi, W, Christie, J P, Coffin, T M, Cormier, M R, Cosentino, J G, Cramer, H J, Crawford, D, Das, S, Das, M, Daugherity, M M, de Moura, T G, Dedovich, M, DePhillips, A A, Derevschikov, L, Didenko, T, Dietel, P, Djawotho, S M, Dogra, W J, Dong, X, Dong, J E, Draper, F, Du, V B, Dunin, J C, Dunlop, M R, Dutta Mazumdar, V, Eckardt, W R, Edwards, L G, Efimov, V, Emelianov, J, Engelage, G, Eppley, B, Erazmus, M, Estienne, P, Fachini, R, Fatemi, J, Fedorisin, K, Filimonov, P, Filip, E, Finch, V, Fine, Y, Fisyak, J, Fu, C A, Gagliardi, L, Gaillard, J, Gans, M S, Ganti, V, Ghazikhanian, P, Ghosh, J E, Gonzalez, Y G, Gorbunov, H, Gos, O, Grebenyuk, D, Grosnick, S M, Guertin, K S F F, Guimaraes, Y, Guo, N, Gupta, T D, Gutierrez, B, Haag, T J, Hallman, A, Hamed, J W, Harris, W, He, M, Heinz, T W, Henry, S, Hepplemann, B, Hippolyte, A, Hirsch, E, Hjort, G W, Hoffmann, M J, Horner, H Z, Huang, S L, Huang, E W, Hughes, T J, Humanic, G, Igo, P, Jacobs, W W, Jacobs, P, Jakl, F, Jia, H, Jiang, P G, Jones, E G, Judd, S, Kabana, K, Kang, J, Kapitan, M, Kaplan, D, Keane, A, Kechechyan, V Yu, Khodyrev, B C, Kim, J, Kiryluk, A, Kisiel, E M, Kislov, S R, Klein, D D, Koetke, T, Kollegger, M, Kopytine, L, Kotchenda, V, Kouchpil, K L, Kowalik, M, Kramer, P, Kravtsov, V I, Kravtsov, K, Krueger, C, Kuhn, A I, Kulikov, A, Kumar, A A, Kuznetsov, M A C, Lamont, J M, Landgraf, S, Lange, S, Lapointe, F, Laue, J, Lauret, A, Lebedev, R, Lednicky, C-H, Lee, S, Lehocka, M J, Levine, C, Li, Q, Li, Y, Li, G, Lin, S J, Lindenbaum, M A, Lisa, F, Liu, H, Liu, J, Liu, L, Liu, Z, Liu, T, Ljubicic, W J, Llope, H, Long, R S, Longacre, M, Lopez-Noriega, W A, Love, Y, Lu, T, Ludlam, D, Lynn, G L, Ma, J G, Ma, Y G, Ma, D, Magestro, D P, Mahapatra, R, Majka, L K, Mangotra, R, Manweiler, S, Margetis, C, Markert, L, Martin, H S, Matis, Yu A, Matulenko, C J, McClain, T S, McShane, Yu, Melnick, A, Meschanin, M L, Miller, N G, Minaev, S, Mioduszewski, C, Mironov, A, Mischke, D K, Mishra, J, Mitchell, B, Mohanty, L, Molnar, C F, Moore, D A, Morozov, M G, Munhoz, B K, Nandi, C, Nattrass, T K, Nayak, J M, Nelson, P K, Netrakanti, V A, Nikitin, L V, Nogach, S B, Nurushev, G, Odyniec, A, Ogawa, V, Okorokov, M, Oldenburg, D, Olson, M, Pachr, S K, Pal, Y, Panebratsev, S Y, Panitkin, A I, Pavlinov, T, Pawlak, T, Peitzmann, V, Perevoztchikov, C, Perkins, W, Peryt, V A, Petrov, S C, Phatak, R, Picha, M, Planinic, J, Pluta, N, Poljak, N, Porile, J, Porter, A M, Poskanzer, M, Potekhin, E, Potrebenikova, B V K S, Potukuchi, D, Prindle, C, Pruneau, J, Putschke, G, Rakness, R, Raniwala, S, Raniwala, R L, Ray, S V, Razin, J, Reinnarth, D, Relyea, F, Retiere, A, Ridiger, H G, Ritter, J B, Roberts, O V, Rogachevskiy, J L, Romero, A, Rose, C, Roy, L, Ruan, M J, Russcher, R, Sahoo, I, Sakrejda, S, Salur, J, Sandweiss, M, Sarsour, P S, Sazhin, J, Schambach, R P, Scharenberg, N, Schmitz, K, Schweda, J, Seger, I, Selyuzhenkov, P, Seyboth, A, Shabetai, E, Shahaliev, M, Shao, M, Sharma, W Q, Shen, S S, Shimanskiy, E, Sichtermann, F, Simon, R N, Singaraju, N, Smirnov, R, Snellings, G, Sood, P, Sorensen, J, Sowinski, J, Speltz, H M, Spinka, B, Srivastava, A, Stadnik, T D S, Stanislaus, R, Stock, A, Stolpovsky, M, Strikhanov, B, Stringfellow, A A P, Suaide, E, Sugarbaker, M, Sumbera, Z, Sun, B, Surrow, M, Swanger, T J M, Symons, A, Szanto de Toledo, A, Tai, J, Takahashi, A H, Tang, T, Tarnowsky, D, Thein, J H, Thomas, A R, Timmins, S, Timoshenko, M, Tokarev, T A, Trainor, S, Trentalange, R E, Tribble, O D, Tsai, J, Ulery, T, Ullrich, D G, Underwood, G, Van Buren, N, van der Kolk, M, van Leeuwen, A M, Vander Molen, R, Varma, I M, Vasilevski, A N, Vasiliev, R, Vernet, S E, Vigdor, Y P, Viyogi, S, Vokal, S A, Voloshin, W T, Waggoner, F, Wang, G, Wang, J S, Wang, X L, Wang, Y, Wang, J W, Watson, J C, Webb, G D, Westfall, A, Wetzler, C, Whitten, H, Wieman, S W, Wissink, R, Witt, J, Wood, J, Wu, N, Xu, Q H, Xu, Z, Xu, P, Yepes, I-K, Yoo, V I, Yurevich, W, Zhan, H, Zhang, W M, Zhang, Y, Zhang, Z P, Zhang, Y, Zhao, C, Zhong, R, Zoulkarneev, Y, Zoulkarneeva, A N, Zubarev, and J X, Zuo
Abstract: We present the scaling properties of Lambda, Xi, and Omega in midrapidity Au+Au collisions at the Brookhaven National Laboratory Relativistic Heavy Ion Collider at sqrt[s_{NN}]=200 GeV. The yield of multistrange baryons per participant nucleon increases from peripheral to central collisions more rapidly than that of Lambda, indicating an increase of the strange-quark density of the matter produced. The strange phase-space occupancy factor gamma_{s} approaches unity for the most central collisions. Moreover, the nuclear modification factors of p, Lambda, and Xi are consistent with each other for 2p_{T}5 GeV/c in agreement with a scenario of hadron formation from constituent quark degrees of freedom.
Published: 2006

50. Identified baryon and meson distributions at large transverse momenta from Au + Au collisions at square root sNN=200 GeV

Author: B I, Abelev, M M, Aggarwal, Z, Ahammed, B D, Anderson, M, Anderson, D, Arkhipkin, G S, Averichev, Y, Bai, J, Balewski, O, Barannikova, L S, Barnby, J, Baudot, S, Bekele, V V, Belaga, A, Bellingeri-Laurikainen, R, Bellwied, F, Benedosso, S, Bhardwaj, A, Bhasin, A K, Bhati, H, Bichsel, J, Bielcik, J, Bielcikova, L C, Bland, S-L, Blyth, B E, Bonner, M, Botje, J, Bouchet, A V, Brandin, A, Bravar, T P, Burton, M, Bystersky, R V, Cadman, X Z, Cai, H, Caines, M, Calderón de la Barca Sánchez, J, Castillo, O, Catu, D, Cebra, Z, Chajecki, P, Chaloupka, S, Chattopadhyay, H F, Chen, J H, Chen, J, Cheng, M, Cherney, A, Chikanian, W, Christie, J P, Coffin, T M, Cormier, M R, Cosentino, J G, Cramer, H J, Crawford, D, Das, S, Das, S, Dash, M, Daugherity, M M, de Moura, T G, Dedovich, M, Dephillips, A A, Derevschikov, L, Didenko, T, Dietel, P, Djawotho, S M, Dogra, W J, Dong, X, Dong, J E, Draper, F, Du, V B, Dunin, J C, Dunlop, M R, Dutta Mazumdar, V, Eckardt, W R, Edwards, L G, Efimov, V, Emelianov, J, Engelage, G, Eppley, B, Erazmus, M, Estienne, P, Fachini, R, Fatemi, J, Fedorisin, P, Filip, E, Finch, V, Fine, Y, Fisyak, J, Fu, C A, Gagliardi, L, Gaillard, M S, Ganti, V, Ghazikhanian, P, Ghosh, J E, Gonzalez, Y G, Gorbunov, H, Gos, O, Grebenyuk, D, Grosnick, S M, Guertin, K S F F, Guimaraes, N, Gupta, T D, Gutierrez, B, Haag, T J, Hallman, A, Hamed, J W, Harris, W, He, M, Heinz, T W, Henry, S, Hepplemann, B, Hippolyte, A, Hirsch, E, Hjort, A M, Hoffman, G W, Hoffmann, M J, Horner, H Z, Huang, S L, Huang, E W, Hughes, T J, Humanic, G, Igo, P, Jacobs, W W, Jacobs, P, Jakl, F, Jia, H, Jiang, P G, Jones, E G, Judd, S, Kabana, K, Kang, J, Kapitan, M, Kaplan, D, Keane, A, Kechechyan, V Yu, Khodyrev, B C, Kim, J, Kiryluk, A, Kisiel, E M, Kislov, S R, Klein, A, Kocoloski, D D, Koetke, T, Kollegger, M, Kopytine, L, Kotchenda, V, Kouchpil, K L, Kowalik, M, Kramer, P, Kravtsov, V I, Kravtsov, K, Krueger, C, Kuhn, A I, Kulikov, A, Kumar, A A, Kuznetsov, M A C, Lamont, J M, Landgraf, S, Lange, S, Lapointe, F, Laue, J, Lauret, A, Lebedev, R, Lednicky, C-H, Lee, S, Lehocka, M J, Levine, C, Li, Q, Li, Y, Li, G, Lin, X, Lin, S J, Lindenbaum, M A, Lisa, F, Liu, H, Liu, J, Liu, L, Liu, Z, Liu, T, Ljubicic, W J, Llope, H, Long, R S, Longacre, W A, Love, Y, Lu, T, Ludlam, D, Lynn, G L, Ma, J G, Ma, Y G, Ma, D, Magestro, D P, Mahapatra, R, Majka, L K, Mangotra, R, Manweiler, S, Margetis, C, Markert, L, Martin, H S, Matis, Yu A, Matulenko, C J, McClain, T S, McShane, Yu, Melnick, A, Meschanin, J, Millane, M L, Miller, N G, Minaev, S, Mioduszewski, C, Mironov, A, Mischke, D K, Mishra, J, Mitchell, B, Mohanty, L, Molnar, C F, Moore, D A, Morozov, M G, Munhoz, B K, Nandi, C, Nattrass, T K, Nayak, J M, Nelson, N S, Nepali, P K, Netrakanti, L V, Nogach, S B, Nurushev, G, Odyniec, A, Ogawa, V, Okorokov, M, Oldenburg, D, Olson, M, Pachr, S K, Pal, Y, Panebratsev, S Y, Panitkin, A I, Pavlinov, T, Pawlak, T, Peitzmann, V, Perevoztchikov, C, Perkins, W, Peryt, S C, Phatak, R, Picha, M, Planinic, J, Pluta, N, Poljak, N, Porile, J, Porter, A M, Poskanzer, M, Potekhin, E, Potrebenikova, B V K S, Potukuchi, D, Prindle, C, Pruneau, J, Putschke, G, Rakness, R, Raniwala, S, Raniwala, R L, Ray, S V, Razin, J, Reinnarth, D, Relyea, A, Ridiger, H G, Ritter, J B, Roberts, O V, Rogachevskiy, J L, Romero, A, Rose, C, Roy, L, Ruan, M J, Russcher, R, Sahoo, T, Sakuma, S, Salur, J, Sandweiss, M, Sarsour, P S, Sazhin, J, Schambach, R P, Scharenberg, N, Schmitz, J, Seger, I, Selyuzhenkov, P, Seyboth, A, Shabetai, E, Shahaliev, M, Shao, M, Sharma, W Q, Shen, S S, Shimanskiy, E P, Sichtermann, F, Simon, R N, Singaraju, N, Smirnov, R, Snellings, G, Sood, P, Sorensen, J, Sowinski, J, Speltz, H M, Spinka, B, Srivastava, A, Stadnik, T D S, Stanislaus, R, Stock, A, Stolpovsky, M, Strikhanov, B, Stringfellow, A A P, Suaide, N L, Subba, E, Sugarbaker, M, Sumbera, Z, Sun, B, Surrow, M, Swanger, T J M, Symons, A, Szanto de Toledo, A, Tai, J, Takahashi, A H, Tang, T, Tarnowsky, D, Thein, J H, Thomas, A R, Timmins, S, Timoshenko, M, Tokarev, T A, Trainor, S, Trentalange, R E, Tribble, O D, Tsai, J, Ulery, T, Ullrich, D G, Underwood, G, Van Buren, N, van der Kolk, M, van Leeuwen, A M, Vander Molen, R, Varma, I M, Vasilevski, A N, Vasiliev, R, Vernet, S E, Vigdor, Y P, Viyogi, S, Vokal, S A, Voloshin, W T, Waggoner, F, Wang, G, Wang, J S, Wang, X L, Wang, Y, Wang, J W, Watson, J C, Webb, G D, Westfall, A, Wetzler, C, Whitten, H, Wieman, S W, Wissink, R, Witt, J, Wood, J, Wu, N, Xu, Q H, Xu, Z, Xu, P, Yepes, I-K, Yoo, V I, Yurevich, W, Zhan, H, Zhang, W M, Zhang, Y, Zhang, Z P, Zhang, Y, Zhao, C, Zhong, R, Zoulkarneev, Y, Zoulkarneeva, A N, Zubarev, and J X, Zuo
Abstract: Transverse momentum spectra of pi+/-, p, and p up to 12 GeV/c at midrapidity in centrality selected Au + Au collisions at square root sNN=200 GeV are presented. In central Au + Au collisions, both pi +/- and p(p) show significant suppression with respect to binary scaling at pT approximately4 GeV/c. Protons and antiprotons are less suppressed than pi+/-, in the range 1.5 approximatelypT approximately6 GeV/c. The pi-/pi+ and p/p ratios show at most a weak pT dependence and no significant centrality dependence. The p/pi ratios in central Au + Au collisions approach the values in p + p and d + Au collisions at pT approximately5 GeV/c. The results at high pT indicate that the partonic sources of pi+/-, p, and p have similar energy loss when traversing the nuclear medium.
Published: 2006

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