Strange and multistrange particle production in Au plus Au collisions at root s(NN)=62.4 GeV
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
18/04/2012
18/04/2012
2011
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| Resumo |
We present results on strange and multistrange particle production in Au + Au collisions at root s(NN) = 62.4 GeV as measured with the STAR detector at RHIC. Midrapidity transverse momentum spectra and integrated yields of K(S)(0), Lambda, Xi, and Omega and their antiparticles are presented for different centrality classes. The particle yields and ratios follow a smooth energy dependence. Chemical freeze-out parameters, temperature, baryon chemical potential, and strangeness saturation factor obtained from the particle yields are presented. Intermediate transverse momentum (p(T)) phenomena are discussed based on the ratio of the measured baryon-to-meson spectra and nuclear modification factor. The centrality dependence of various measurements presented show a similar behavior as seen in Au + Au collisions at root s(NN) = 200 GeV. RHIC Operations Group and RCF at BNL NERSC Center at LBNL Open Science Grid consortium offices of NP and HEP within the US DOE Office of Science US NSF National Science Foundation Sloan Foundation Deutsche Forschungsgemeinschaft - DFG cluster of excellence ""Origin and Structure of the Universe"" of Germany FAPESP CNPq of Brazil[CNRS/IN2P3] MES Ministry of Education and Science of the Russian Federation NNSFC, CAS, MoST, and MoE of China GACR and MSMT of the Czech Republic FOM and NWO of the Netherlands (CSIR) Council of Scientific and Industrial Research and (DAE) Department of Atomic Energy and (DST) Department of Science and Technology, India Polish Ministry of Science and Higher Education Korea Research Foundation (KRF) Ministry of Science, Education and Sports of the Republic of Croatia RosAtom of Russia |
| Identificador |
PHYSICAL REVIEW C, v.83, n.2, 2011 0556-2813 http://producao.usp.br/handle/BDPI/16285 10.1103/PhysRevC.83.024901 |
| Idioma(s) |
eng |
| Publicador |
AMER PHYSICAL SOC |
| Relação |
Physical Review C |
| Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
| Palavras-Chave | #ENERGY-DEPENDENCE #HADRON-PRODUCTION #AU+AU COLLISIONS #FREEZE-OUT #STAR #SPS #Physics, Nuclear |
| Tipo |
article original article publishedVersion |