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Title: Shear viscosities of photons in strongly coupled plasmas

Abstract

We investigate the shear viscosity of thermalized photons in the quark gluon plasma (QGP) at weak coupling and N=4 super Yang–Mills plasma (SYMP) at both strong and weak couplings. We find that the shear viscosity due to the photon–parton scattering up to the leading order of electromagnetic coupling is suppressed when the coupling of the QGP/SYMP is increased, which stems from the blue-shift of the thermal-photon spectrum at strong coupling. In addition, the shear viscosity rapidly increases near the deconfinement transition in a phenomenological model analogous to the QGP.

Authors:
;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1264789
Alternate Identifier(s):
OSTI ID: 1412765
Report Number(s):
BNL-114741-2017-JA
Journal ID: ISSN 0370-2693; S0370269316303756; PII: S0370269316303756
Grant/Contract Number:  
FG02-05ER41367; 316165; MIS 375734; SC0012704
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 760 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Yang, Di-Lun, and Müller, Berndt. Shear viscosities of photons in strongly coupled plasmas. Netherlands: N. p., 2016. Web. doi:10.1016/j.physletb.2016.07.034.
Yang, Di-Lun, & Müller, Berndt. Shear viscosities of photons in strongly coupled plasmas. Netherlands. doi:10.1016/j.physletb.2016.07.034.
Yang, Di-Lun, and Müller, Berndt. Thu . "Shear viscosities of photons in strongly coupled plasmas". Netherlands. doi:10.1016/j.physletb.2016.07.034.
@article{osti_1264789,
title = {Shear viscosities of photons in strongly coupled plasmas},
author = {Yang, Di-Lun and Müller, Berndt},
abstractNote = {We investigate the shear viscosity of thermalized photons in the quark gluon plasma (QGP) at weak coupling and N=4 super Yang–Mills plasma (SYMP) at both strong and weak couplings. We find that the shear viscosity due to the photon–parton scattering up to the leading order of electromagnetic coupling is suppressed when the coupling of the QGP/SYMP is increased, which stems from the blue-shift of the thermal-photon spectrum at strong coupling. In addition, the shear viscosity rapidly increases near the deconfinement transition in a phenomenological model analogous to the QGP.},
doi = {10.1016/j.physletb.2016.07.034},
journal = {Physics Letters B},
number = C,
volume = 760,
place = {Netherlands},
year = {2016},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2016.07.034

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Cited by: 3 works
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