Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality 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
2009
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Resumo |
Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au + Au and p + p collisions at root s(NN) = 200 GeV. Strong short- and long-range correlations (LRC) are seen in central Au + Au collisions. The magnitude of these correlations decrease with decreasing centrality until only short-range correlations are observed in peripheral Au + Au collisions. Both the dual parton model (DPM) and the color glass condensate (CGC) predict the existence of the long-range correlations. In the DPM, the fluctuation in the number of elementary (parton) inelastic collisions produces the LRC. In the CGC, longitudinal color flux tubes generate the LRC. The data are in qualitative agreement with the predictions of the DPM and indicate the presence of multiple parton interactions. Offices of N.P within the US DOE Office of Science U.S. DOE Office of Science U.S. NSF National Science Foundation Sloan Foundation Deutsche Forschungsgemeinschaft - DFG cluster of excellence[CNRS/IN2P3] EMN of France STFC EPSRC of the United Kingdom FAPESP of Brazil MES Russian Ministry of Sci. and Tech. National Natural Science Foundation of China (NNSFC) CAS of China MoST of China MoE of China IRP GACR of the Czech Republic FOM of the Netherlands (DAE) Department of Atomic Energy, India (DST) Department of Science and Technology, India (CSIR) Council of Scientific and Industrial Research - India Polish State Committee for Scientific Research Korea Sci. and Eng. Foundation (KOSEF) |
Identificador |
PHYSICAL REVIEW LETTERS, v.103, n.17, 2009 0031-9007 http://producao.usp.br/handle/BDPI/16315 10.1103/PhysRevLett.103.172301 |
Idioma(s) |
eng |
Publicador |
AMER PHYSICAL SOC |
Relação |
Physical Review Letters |
Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
Palavras-Chave | #GLUON DISTRIBUTION-FUNCTIONS #MONTE-CARLO MODEL #RAPIDITY CORRELATIONS #LARGE NUCLEI #QUARK #ENERGIES #STRINGS #FUSION #SPS #Physics, Multidisciplinary |
Tipo |
article original article publishedVersion |