Universal scaling of the σ field and net-protons from Langevin dynamics of model A

Shanjin Wu, Zeming Wu, and Huichao Song
Phys. Rev. C 99, 064902 – Published 5 June 2019

Abstract

In this paper, we investigate the Kibble-Zurek scaling of the σ field and net-protons within the framework of Langevin dynamics of model A. After determining the characteristic scales τKZ,lKZ, and θKZ and properly rescaling the traditional cumulants, we construct universal functions for the σ field and approximate universal functions for net-protons in the critical regime, which are insensitive to the relaxation time and the chosen evolving trajectory. Besides, the oscillating behavior for the higher order cumulants of net-protons near the critical point is also drastically suppressed, which converge into approximate universal curves with these constructed Kibble-Zurek functions.

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  • Received 26 November 2018

DOI:https://doi.org/10.1103/PhysRevC.99.064902

©2019 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Shanjin Wu1,*, Zeming Wu1,†, and Huichao Song1,2,3,‡

  • 1Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
  • 2Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
  • 3Center for High Energy Physics, Peking University, Beijing 100871, China

  • *shanjinwu2014@pku.edu.cn
  • zeming_wu@pku.edu.cn
  • huichaosong@pku.edu.cn

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Issue

Vol. 99, Iss. 6 — June 2019

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