A1 Journal article (refereed)
Linearly polarized gluons and axial charge fluctuations in the glasma (2018)

Lappi, T., & Schlichting, S. (2018). Linearly polarized gluons and axial charge fluctuations in the glasma. Physical Review D, 97(3), Article 034034. https://doi.org/10.1103/PhysRevD.97.034034

JYU authors or editors

Lappi, Tuomas

Publication details

All authors or editors: Lappi, Tuomas; Schlichting, Sören

Journal or series: Physical Review D

ISSN: 2470-0010

eISSN: 2470-0029

Publication year: 2018

Volume: 97

Issue number: 3

Article number: 034034

Publisher: American Physical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevD.97.034034

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/57290

Web address where publication is available: https://arxiv.org/abs/1708.08625

Abstract

We calculate the one- and two-point correlation functions of the energy density and the divergence of the Chern-Simons current in the nonequilibrium glasma state formed in a high-energy nuclear collision. We show that the latter depends on the difference of the total and linearly polarized gluon transverse momentum distributions. Since the divergence of the Chern-Simons current provides the source of axial charge, we infer information about the statistical properties of axial charge production at early times. We further develop a simple phenomenological model to characterize axial charge distributions in terms of distributions of the energy density.

Keywords: particles (matter); quarks; ions; nuclear physics; quark-gluon plasma

Free keywords: particle production; relativistic heavy-ion collisions

Fields of science: