Chiral electric field in relativistic heavy-ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider

TL;DR

This paper investigates the spatial distribution and temporal evolution of chiral electric fields in relativistic heavy-ion collisions at RHIC and LHC energies, highlighting differences from magnetic fields and implications for chiral separation effects.

Contribution

It provides a systematic calculation of electric field distributions in off-central collisions using Wood-Saxon nucleon profiles, revealing unique features compared to magnetic fields.

Findings

Electric fields exhibit distinct spatial features from magnetic fields in collisions.

Electric field strength depends on impact parameter, collision energy, and proper time.

Electric fields generated by thermal quarks vary with collision parameters.

Abstract

It was proposed that the electric fields may lead to chiral separation in QGP, which is called the chiral electric separation effect. The strong electromagnetic field and the QCD vacuum can both completely be produced in the off-central nuclear-nuclear collision. We used the Wood-Saxon nucleon distribution to calculate the electric field distributions of the off-central collisions. The chiral electro field spatial distribution at Relativistic Heavy-Ion Collider (RHIC) and Large Hadron Collider (LHC) energy regions are systematically studied in this paper. Compared with magnetic field spatial distribution, electric field shows some different features in relativistic heavy-ion collisions. The dependence of the electric field produced by the thermal quark in the central position with different impact parameters on the proper time with different collision energies in the RHIC and LHC energy region are studied in this paper.