Document Type

Article

Publication Version

Published Version

Publication Date

2013

Journal or Book Title

Physical Review C

Volume

87

Issue

2

First Page

024912-1

Last Page

024912-8

DOI

10.1103/PhysRevC.87.024912

Abstract

The electromagnetic radiation by quark-gluon plasma in a strong magnetic field is calculated. The contributing processes are synchrotron radiation and one-photon annihilation. It is shown that in relativistic heavy-ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC) and CERN Large Hadron Collider (LHC) synchrotron radiation dominates over the annihilation. Moreover, it constitutes a significant part of all photons produced by the plasma at low transverse momenta; its magnitude depends on the plasma temperature and the magnetic field strength. Electromagnetic radiation in a magnetic field is probably the missing piece that resolves a discrepancy between the theoretical models and the experimental data. It is argued that electromagnetic radiation increases with the magnetic field strength and plasma temperature.

Comments

This article is from Physical Review C 87 (2013): 024912, doi: 10.1103/PhysRevC.87.024912. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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