Energy and system-size dependence of two- and four-particle v2 measurements in heavy-ion collisions at root sNN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00194260" target="_blank" >RIV/68407700:21340/12:00194260 - isvavai.cz</a>

Result on the web

<a href="http://prc.aps.org/abstract/PRC/v86/i1/e014904" target="_blank" >http://prc.aps.org/abstract/PRC/v86/i1/e014904</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.86.014904" target="_blank" >10.1103/PhysRevC.86.014904</a>

Result language

angličtina

Original language name

Energy and system-size dependence of two- and four-particle v2 measurements in heavy-ion collisions at root sNN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow

Original language description

We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants v2 (v2{2} and v2{4}) for Au+Au and Cu+Cu collisions at center-of-mass energies root sNN=62.4 and 200 GeV. The difference between v2{2}2 and v2{4}2 is related to v2 fluctuations (?v2) and nonflow (?2). We present an upper limit to ?v2/v2. Following the assumption that eccentricity fluctuations ?? dominate v2 fluctuations ?v2/v2~??/? we deduce the nonflow implied for several models of eccentricity fluctuations that would be required for consistency with v2{2} and v2{4}. We also present results on the ratio of v2 to eccentricity.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

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Project

<a href="/en/project/LA09013" target="_blank" >LA09013: Participation of the Czech Republic in the STAR experiment at Brookhaven National Laboratory, U.S.A.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review C

ISSN

0556-2813

e-ISSN

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Volume of the periodical

86

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

15

Pages from-to

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UT code for WoS article

000306316700006

EID of the result in the Scopus database

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