Transverse momentum dependence of eta meson suppression in Au plus Au collisions at root s(NN)=200 GeV
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
18/04/2012
18/04/2012
2010
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Resumo |
New measurements by the PHENIX experiment at the Relativistic Heavy Ion Collider for. production at midrapidity as a function of transverse momentum ((PT)) and collision centrality in root s(NN) = 200 GeV Au + Au and p + p collisions are presented. They indicate nuclear modification factors (R(AA)) which are similar in both magnitude and trend to those found in earlier pi(0) measurements. Linear fits to R(AA) as a function of (PT) in 5-20 GeV/c show that the slope is consistent with zero within two standard deviations at all centralities, although a slow rise cannot be excluded. Having different statistical and systematic uncertainties, the pi(0) and eta measurements are complementary at high (PT); thus, along with the extended (PT) range of these data they can provide additional constraints for theoretical modeling and the extraction of transport properties. Office of Nuclear Physics in DOE Office of Science, NSF National Science Foundation (U.S.) Renaissance Technologies (United States) MEXT JSPS - Japan Society for the Promotion of Science (Japan) CNPq FAPESP (Brazil) NSFC (China) MSMT (Czech Republic) Centre National de la Recherche Scientifique - IN2P3/CNRS CEA (France) BMBF - Bundesministerium fur Bildung und Forschung, Germany (DAAD) Deutscher Akademischer Austausch Dienst, Germany Alexander von Humboldt Foundation (Germany) OTKA (Hungary) (DAE) Department of Atomic Energy, India (DST) Department of Science and Technology, India ISF - Israel Science Foundation (Israel) NRF(Korea) MES Ministry of Education and Science of the Russian Federation RAS Russia Academy of Sciences FAAE (Russia) VR and KAW (Sweden) US CRDF for the FSU, US-Hungary Fulbright (BSF) US-Israel Binational Science Foundation |
Identificador |
PHYSICAL REVIEW C, v.82, n.1, 2010 0556-2813 http://producao.usp.br/handle/BDPI/16070 10.1103/PhysRevC.82.011902 |
Idioma(s) |
eng |
Publicador |
AMER PHYSICAL SOC |
Relação |
Physical Review C |
Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
Palavras-Chave | #Physics, Nuclear |
Tipo |
article original article publishedVersion |