Shear viscosities of photons in strongly coupled plasmas

Yang, Di-Lun; Müller, Berndt

doi:10.1016/j.physletb.2016.07.034

Title: Shear viscosities of photons in strongly coupled plasmas

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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:: Yang, Di-Lun; Müller, Berndt

Publication Date:: Thu Sep 01 00:00:00 EDT 2016

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

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.

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                    Yang, Di-Lun, & Müller, Berndt. Shear viscosities of photons in strongly coupled plasmas.  Netherlands.  https://doi.org/10.1016/j.physletb.2016.07.034

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                    Yang, Di-Lun, and Müller, Berndt. Thu .  
"Shear viscosities of photons in strongly coupled plasmas".  Netherlands.  https://doi.org/10.1016/j.physletb.2016.07.034.

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@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         = {Thu Sep 01 00:00:00 EDT 2016},

  month        = {Thu Sep 01 00:00:00 EDT 2016}

}

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