Measurement of Intermittency for Charged Particles in Au + Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 7.7-200 GeV from STAR

Abstract

Local density fluctuations near the QCD critical point can be probed by intermittency analysis of scaled factorial moments in relativistic heavy-ion collisions. We report the first measurement of intermittency for charged particles in Au + Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 7.7-200 GeV from the STAR experiment at RHIC. We observe scaling behaviors in central Au + Au collisions, with the extracted scaling exponent decreasing from mid-central to the most central Au + Au collisions. Furthermore, the scaling exponent exhibits a non-monotonic energy dependence with a minimum around $\sqrt{s_{\mathrm{NN}}}$ = 20-30 GeV in central Au + Au collisions.

arXiv comment5 pages, 4 figures; Revised version for the 50th International Symposium on Multiparticle Dynamics (ISMD 2021)

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Cited by in corpus (2)

• Machine learning phase transitions of the three-dimensional Ising universality class
• Intermittency of charged particles in the hybrid UrQMD+CMC model at energies available at the BNL Relativistic Heavy Ion Collider