Probing Hydrodynamics in PbPb Collisions at 5.02 TeV with Higher-order Cumulants

被引：0
|
作者：
Dattamunsi, Aryaa [1 ]
机构：
[1] Indian Inst Technol Madras, Chennai, Tamil Nadu, India
来源：
21ST INTERNATIONAL CONFERENCE ON STRANGENESS IN QUARK MATTER, SQM 2024 | 2025年 / 316卷
关键词：
D O I：
10.1051/epjconf/202531607006
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The elliptic flow of charged hadrons is studied through multiparticle correlations in PbPb collisions at root s(NN) = 5.02 TeV, corresponding to an integrated luminosity of 0.607 nb(-1). v(2){2k} are measured up to the tenth order (k = 5) as functions of the collision centrality. They are shown to follow the ordering : v(2){2} > v(2){4} greater than or similar to v(2){6} greater than or similar to v(2){8} greater than or similar to v(2){10}. The centrality-dependent moments skewness, kurtosis and, for the first time, superskewness, are measured for the fluctuation-driven event-by-event v(2) distribution. These moments can be good probes of the initial-state geometry in high-energy nucleus-nucleus collisions, assuming a hydrodynamic expansion.
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