Linearly polarized gluons and axial charge fluctuations in the glasma
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.
Main Authors
Format
Articles
Research article
Published
2018
Series
Subjects
Publication in research information system
Publisher
American Physical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201803071678Use this for linking
Review status
Peer reviewed
ISSN
2470-0010
DOI
https://doi.org/10.1103/PhysRevD.97.034034
Language
English
Published in
Physical Review D
Citation
- 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
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Funder(s)
Academy of Finland
Academy of Finland
European Commission
Funding program(s)
Akatemiatutkija, SA
Akatemiatutkijan tutkimuskulut, SA
ERC European Research Council, H2020
Academy Research Fellow, AoF
Research costs of Academy Research Fellow, AoF
ERC European Research Council, H2020
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Education and Culture Executive Agency (EACEA). Neither the European Union nor EACEA can be held responsible for them.
Additional information about funding
Support by the U.S. Department of Energy, Office of Science, Nuclear Physics under Grant No. DE-FG02-97ER41014 (S. S.) as well as by the Academy of Finland, Projects No. 267321 and No. 303756 (T. L.) and by the European Research Council, Grant No. ERC-2015-CoG-681707 (T. L.) is gratefully acknowledged by the authors.
Copyright© the Authors, 2017. Published by the American Physical Society. Funded by SCOAP3. This is an open access article distributed under the terms of the Creative Commons License.