Počet záznamů: 1
Isolation of flow and nonflow correlations by two- and four-particle cumulant measurements of azimuthal harmonics in root s(NN)=200 GeV Au+Au collisions
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SYSNO ASEP 0444575 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Isolation of flow and nonflow correlations by two- and four-particle cumulant measurements of azimuthal harmonics in root s(NN)=200 GeV Au+Au collisions Tvůrce(i) Abdelwahab, N. M. (US)
Adamczyk, L. (PL)
Bielčík, J. (CZ)
Bielčíková, Jana (UJF-V) RID, ORCID, SAI
Chaloupka, P. (CZ)
Rusňák, Jan (UJF-V) RID, ORCID, SAI
Rusňáková, O. (CZ)
Šimko, M. (CZ)
Šumbera, Michal (UJF-V) RID, ORCID, SAI
Tlustý, David (UJF-V)
Trzeciak, B. A. (CZ)
Vértési, Robert (UJF-V)Celkový počet autorů 349 Zdroj.dok. Physics Letters. B. - : Elsevier - ISSN 0370-2693
Roč. 745, MAY (2015), s. 40-47Poč.str. 8 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova STAR collaboration ; heavy ion Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače CEP GA13-20841S GA ČR - Grantová agentura ČR Institucionální podpora UJF-V - RVO:61389005 UT WOS 000353892300005 EID SCOPUS 84928320877 DOI 10.1016/j.physletb.2015.04.033 Anotace A data-driven method was applied to Au+Au collisions at root S-NN = 200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance Delta eta-dependent and Delta eta-independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a Delta eta-independent component of the correlation, which is dominated by anisotropic flow and flow fluctuations. It was also found to be independent of. within the measured range of pseudorapidity vertical bar eta vertical bar < 1. In 20-30% central Au+Au collisions, the relative flow fluctuation was found to be 34% +/- 2%(stat.) +/- 3%(sys.) for particles with transverse momentum p(T) less than 2 GeV/c. The Delta eta-dependent part, attributed to nonflow correlations, is found to be 5% +/- 2%(sys.) relative to the flow of the measured second harmonic cumulant at vertical bar Delta eta vertical bar > 0.7. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2016
Počet záznamů: 1