Evolution and fluctuations of chiral chemical potential in heavy ion collisions

被引：1
|
作者：
Kovalenko, Vladimir [1 ]
机构：
[1] St Petersburg State Univ, Dept Nucl Phys Res Methods, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E | 2024年 / 33卷 / 09期
基金：
俄罗斯科学基金会;
关键词：
Local parity violation; chiral imbalance; chiral chemical potential; relativistic hydrodynamics; PARITY VIOLATION; QCD; BREAKING; SEARCH; DECAYS; MODELS; MESON;
D O I：
10.1142/S021830132450037X
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The possible appearance of the effects of local parity breaking in the QCD medium formed in heavy ion collisions due to violation of chiral symmetry can be quantified by corresponding chiral chemical potential mu 5. The experimental observables sensitive to the effects of local parity violation in strong interaction include search for polarization splitting of the rho 0 and omega 0 mesons via angular dependence of spectral functions in their decay to leptons. In this paper, we study the space-time evolution and fluctuations of mu 5 using relativistic hydrodynamics and estimate their effect on the light vector meson polarization splitting in Pb-Pb collisions at LHC energy.
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页数：11
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