Energy and system-size dependence of two- and four-particle nu(2) measurements in heavy-ion collisions at root S-NN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow

doi:10.1103/PhysRevC.86.014904

	Energy and system-size dependence of two- and four-particle nu(2) measurements in heavy-ion collisions at root S-NN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow
	Agakishiev, G.1; Aggarwal, M. M.30; Ahammed, Z.48; Alakhverdyants, A. V.1; Alekseev, I.16; Alford, J.18; Anderson, B. D.18; Anson, C. D.28; Arkhipkin, D.3; Averichev, G. S.1
刊名	PHYSICAL REVIEW C
	2012-07-11
卷号	86
ISSN号	0556-2813
DOI	10.1103/PhysRevC.86.014904
文献子类	Article
英文摘要	We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants nu(2) (nu(2){2} and nu(2){4}) for Au + Au and Cu + Cu collisions at center-of-mass energies root S-NN = 62.4 and 200 GeV. The difference between nu(2){2}(2) and nu(2){4}(2) is related to nu(2) fluctuations (sigma(nu 2)) and nonflow (delta(2)). We present an upper limit to sigma(nu 2)/nu 2. Following the assumption that eccentricity fluctuations sigma(epsilon) dominate nu(2) fluctuations nu(2)/sigma nu(2) approximate to epsilon/sigma epsilon we deduce the nonflow implied for several models of eccentricity fluctuations that would be required for consistency with nu(2){2} and nu(2){4}. We also present results on the ratio of nu(2) to eccentricity.
资助项目	BMBF of Germany[CNRS/IN2P3]
WOS关键词	RELATIVISTIC NUCLEAR COLLISIONS ; ELLIPTIC FLOW ; ECCENTRICITY FLUCTUATIONS ; COLLABORATION ; SIGNATURE
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000306316700006
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49125]
专题	中国科学院近代物理研究所
通讯作者	Agakishiev, G.
作者单位	1.Joint Inst Nucl Res, Dubna 141980, Russia 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Brookhaven Natl Lab, Upton, NY 11973 USA 4.Univ Calif Berkeley, Berkeley, CA 94720 USA 5.Univ Calif Davis, Davis, CA 95616 USA 6.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 7.Univ Estadual Campinas, Sao Paulo, Brazil 8.Univ Illinois, Chicago, IL 60607 USA 9.Creighton Univ, Omaha, NE 68178 USA 10.Czech Tech Univ, FNSPE, Prague 11519, Czech Republic
推荐引用方式 GB/T 7714	Agakishiev, G.,Aggarwal, M. M.,Ahammed, Z.,et al. Energy and system-size dependence of two- and four-particle nu(2) measurements in heavy-ion collisions at root S-NN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow[J]. PHYSICAL REVIEW C,2012,86.
APA	Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,Alekseev, I..,...&STAR Collaboration.(2012).Energy and system-size dependence of two- and four-particle nu(2) measurements in heavy-ion collisions at root S-NN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow.PHYSICAL REVIEW C,86.
MLA	Agakishiev, G.,et al."Energy and system-size dependence of two- and four-particle nu(2) measurements in heavy-ion collisions at root S-NN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow".PHYSICAL REVIEW C 86(2012).