Conference
Rapidity Dependence of Proton Higher-Order Cumulants in √sNN = 3.2 GeV Au+Au Collisions at RHIC.
| Τίτλος: | Rapidity Dependence of Proton Higher-Order Cumulants in √s |
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| Συγγραφείς: | Zhang, Xin1,2 (AUTHOR) zhangxin2020@impcas.ac.cn |
| Πηγή: | EPJ Web of Conferences. 8/1/2026, Vol. 378, p1-4. 4p. |
| Θεματικοί όροι: | *Cumulants, *Multiplicity of nuclear particles, *Relativistic Heavy Ion Collider, *Heavy ion collisions, *Critical point (Thermodynamics), *Quark-gluon plasma, *Transport theory |
| Περίληψη: | Fluctuations of conserved quantities are proposed as a useful observable to study the QCD phase structure including the search for the first-order phase boundary and critical point [1]. Lattice QCD calculations have shown that there is no critical point for µB 450 MeV and some phenomenology models calculations have shown that the critical point could be at temperature of T 100 MeV and baryonic chemical potential of µB 600 -650 MeV [2–6]. Rapidity dependence of the higher order cumulant ratios have been argued to be sensitive to the QCD critical point [7]. We have performed measurements of rapidity dependence of both higher order cumulants and factorial cumulants of proton multiplicity distribution, up to 5th order from Au+Au collisions, at √sNN = 3.2 GeV(µB 699 MeV) from the STAR experiment at RHIC. Collision centrality dependence of these rapidity distributions and relevant ratios will be discussed. In addition, the results will be compared with the calculations from transport model UrQMD. [ABSTRACT FROM AUTHOR] |
| Βάση Δεδομένων: | Academic Search Index |
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