标题:Long-range collectivity in small collision systems with two- and four-particle correlations at STAR
作者:Huang, Shengli; Adam, J.; Adamczyk, L.; Adams, J. R.; Adkins, J. K.; Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Alekseev, I; Ande 更多
通讯作者:Huang, SL
作者机构:[Huang, Shengli] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.; [Drachenberg, J. L.] Univ Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 30585 更多
会议名称:27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter)
会议日期:MAY 13-19, 2018
来源:NUCLEAR PHYSICS A
出版年:2019
卷:982
页码:475-478
DOI:10.1016/j.nuclphysa.2018.09.072
关键词:two-and four-particle azimuthal angular correlations; ridge; anisotropic; flow; cumulant
摘要:New STAR measurements of two- and four-particle (c(2){4}) azimuthal angle correlations are reported for p+Au collisions at 200 GeV and d+Au collisions from 19.6 to 200 GeV. A negative c(2){4), consistent with collective anisotropic flow, is observed in high multiplicity d+Au events at 62.4 and 200 GeV where the statistical significance of the data allows an analysis. A template fitting method, employed to subtract non-flow contributions to the two-particle correlations, allows the extraction of the anisotropy coefficients (v(2)) for these systems at their respective energies. The v(2) results for different energies show a common dependence on the charged particle multiplicity density << dN(ch)/d eta >>, which provide important insight on the nature of collective behavior in small collision systems.
收录类别:CPCI-S;SCIE
资源类型:会议论文
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