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Incident energy dependence of p(t) correlations at relativistic energies
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SYSNO ASEP 0307395 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Incident energy dependence of p(t) correlations at relativistic energies Title Závislost p(t) korelací při relativistických energiích na incidentní energii Author(s) Adams, J. (US)
Aggarwal, M. M. (IN)
Ahammed, Z. (IN)
Amonett, J. (DE)
Anderson, B. D. (US)
Arkhipkin, D. (US)
Chaloupka, Petr (UJF-V) RID
Averichev, G. S. (RU)
Badyal, S. K. (IN)
Bai, Y. (US)
Balewski, J. (US)
Bielčík, J. (CZ)
Bielčíková, J. (CZ)Source Title Physical Review. C - ISSN 0556-2813
Roč. 72, č. 4 (2005), 044902-044902Number of pages 1 s. Language eng - English Country US - United States Keywords By -event fluctuations Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GA202/04/0793 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10480505 - UJF-V (2005-2011) Annotation We present results for two-particle transverse momentum correlations, <Delta p(t,i)Delta p(t,j)>, as a function of event centrality for Au+Au collisions at root SNN = 20, 62, 130, and 200 GeV at the BNL Relativistic Heavy Ion Collider. We observe correlations decreasing with centrality that are similar at all four incident energies. The correlations multiplied by the multiplicity density increase with incident energy, and the centrality dependence may show evidence of processes such as thermalization, jet production, or the saturation of transverse flow. The square root of the correlations divided by the event-wise average transverse momentum per event shows little or no beam energy dependence and generally agrees with previous measurements made at the CERN Super Proton Synchrotron. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2008
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