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Incident energy dependence of p(t) correlations at relativistic energies

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    SYSNO ASEP0307395
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JOstatní články
    TitleIncident energy dependence of p(t) correlations at relativistic energies
    TitleZávislost 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 TitlePhysical Review. C - ISSN 0556-2813
    Roč. 72, č. 4 (2005), 044902-044902
    Number of pages1 s.
    Languageeng - English
    CountryUS - United States
    KeywordsBy -event fluctuations
    Subject RIVBG - Nuclear, Atomic and Molecular Physics, Colliders
    R&D ProjectsGA202/04/0793 GA ČR - Czech Science Foundation (CSF)
    CEZAV0Z10480505 - UJF-V (2005-2011)
    AnnotationWe 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.
    WorkplaceNuclear Physics Institute
    ContactMarkéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
    Year of Publishing2008
Number of the records: 1  

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