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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; Aggarwal, MM; Cai, XZ(蔡翔舟); Chen, JH(陈金辉); Han, LX; Jin, F; Li, W; Ma, GL(马国亮); Ma, YG(马余刚); Tian,J(田健); Zhang, S(张松); Zhao, J; Zhong, C(钟晨); Zhu, YH; Zoulkarneeva, Y; Xue, L(薛亮)
2012
Source PublicationPHYSICAL REVIEW C
ISSN0556-2813
Volume86Issue:1
AbstractWe 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.
Language英语
Funding Project应物所项目组
WOS IDWOS:000306316700006
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13150
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
GB/T 7714
Agakishiev, G,Aggarwal, MM,Cai, XZ,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(1).
APA Agakishiev, G.,Aggarwal, MM.,Cai, XZ.,Chen, JH.,Han, LX.,...&Xue, L.(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(1).
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 86.1(2012).
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