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  • Letter

Global constraint on the magnitude of anomalous chiral effects in heavy-ion collisions

Wen-Ya Wu1,2, Qi-Ye Shou1,2,*, Panos Christakoglou3,†, Prottay Das4, Md. Rihan Haque5, Guo-Liang Ma1,2, Yu-Gang Ma1,2,‡, Bedangadas Mohanty4, Chun-Zheng Wang1,2 et al.

Song Zhang1,2 and Jie Zhao1,2

  • 1Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200433, China
  • 2Shanghai Research Center for Theoretical Nuclear Physics, NSFC and Fudan University, Shanghai 200438, China
  • 3Nikhef, Nationaal Instituut voor Subatomaire Fysica, 1098 XG Amsterdam, The Netherlands
  • 4National Institute of Science Education and Research, Homi Bhabha National Institute, Jatni, Khurda 752050, India
  • 5Warsaw University of Technology, 00-661 Warsaw, Poland

  • *shouqiye@fudan.edu.cn
  • †panos.christakoglou@nikhef.nl
  • ‡mayugang@fudan.edu.cn
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Phys. Rev. C 107, L031902 – Published 21 March, 2023

DOI: https://doi.org/10.1103/PhysRevC.107.L031902

Abstract

When searching for anomalous chiral effects in heavy-ion collisions, one of the most crucial points is the relationship between the signal and the background. In this Letter, we present a simulation in a modified blast wave model at CERN Large Hadron Collider energy, which can simultaneously characterize the majority of measurable quantities, in particular, the chiral magnetic effect (CME) and the chiral magnetic wave (CMW) observables. Such a universal description, naturally and quantitatively unifies the CME and the CMW studies and brings to light the connection with the local charge conservation (LCC) background. Moreover, a simple phenomenological approach is performed to introduce the signals, aiming at quantifying the maximum allowable strength of the signals within experimental precision. Such a constraint provides a novel perspective to understand the experimental data and sheds new light on the study of anomalous chiral effects as well as charge dependent correlations.

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Phys. Rev. C 107, L031902– Published 21 March, 2023
  • Received 28 November 2022
  • Accepted 2 March 2023
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