Higher Moments of Net-Kaon Multiplicity Distributions at STAR

16th International Conference on Strangeness in Quark Matter

Xu, Ji^1,2

Key Laboratory of Quark and Lepton Physics (MOE), Institute of Particle Physics, Central China Normal University, Wuhan

430079, China^1

Lawrence Berkeley National Laboratory, Berkeley

CA

94720, United States^2

关键词: Au+Au collisions;    Baseline calculations;    Conserved quantity;    Correlation lengths;    Energy dependence;    Heavy ion collision;    Multiplicity distributions;    Non-Gaussian fluctuations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/779/1/012073/pdf
DOI  :  10.1088/1742-6596/779/1/012073

来源: IOP

【 摘 要 】

Fluctuations of conserved quantities such as baryon number (B), electric charge number (Q), and strangeness number (S), are sensitive to the correlation length and can be used to probe non-Gaussian fluctuations near the critical point. Experimentally, higher moments of the multiplicity distributions have been used to search for the QCD critical point in heavy-ion collisions. In this paper, we report the efficiency-corrected cumulants and their ratios of mid-rapidity (|y|