Electrical conductivity of the quark-gluon plasma and soft photon spectrum in heavy-ion collisions
Abstract
We extract the electrical conductivity σ0 of the quark gluon plasma (QGP) and study the effects of magnetic field and chiral anomaly on soft photon azimuthal anisotropy, v₂, based on the thermal photon spectrum at 0.4GeV < p⊥< 0.6GeV at the RHIC energy. As a basis for my analysis, we derive the behavior of retarded photon self-energy of a strongly interacting neutral plasma in hydrodynamic regime in the presence of magnetic field and chiral anomaly. By evolving the resulting soft thermal photon production rate over the realistic hydrodynamic background and comparing the results with the data from the PHENIX Collaboration, I found that the electrical conductivity at QGP temperature is in the range: 0.4 < σ₀/(e²T) < 1.1, which is comparable with recent studies on lattice. I also compare the contribution from the magnetic field and chiral anomaly to soft thermal photon v₂ with the data. I argue that at the CERN Large Hadron Collider, the chiral magnetic wave would give negative contribution to photon v₂.
- Authors:
-
- Univ. of Illinois, Chicago, IL (United States); Brookhaven National Lab., Upton, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1176993
- Alternate Identifier(s):
- OSTI ID: 1180107
- Report Number(s):
- BNL-107347-2015-JA
Journal ID: ISSN 0556-2813; PRVCAN; KB0301020
- Grant/Contract Number:
- FG02-01ER41195; AC02-98CH10886; FG0201ER41195
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C, Nuclear Physics
- Additional Journal Information:
- Journal Volume: 90; Journal Issue: 4; Journal ID: ISSN 0556-2813
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; quark; gluon; quark gluon plasma (QGP); PHENIX; soft photon; Relativistic Heavy Ion Collider (RHIC)
Citation Formats
Yin, Yi. Electrical conductivity of the quark-gluon plasma and soft photon spectrum in heavy-ion collisions. United States: N. p., 2014.
Web. doi:10.1103/PhysRevC.90.044903.
Yin, Yi. Electrical conductivity of the quark-gluon plasma and soft photon spectrum in heavy-ion collisions. United States. https://doi.org/10.1103/PhysRevC.90.044903
Yin, Yi. Mon .
"Electrical conductivity of the quark-gluon plasma and soft photon spectrum in heavy-ion collisions". United States. https://doi.org/10.1103/PhysRevC.90.044903. https://www.osti.gov/servlets/purl/1176993.
@article{osti_1176993,
title = {Electrical conductivity of the quark-gluon plasma and soft photon spectrum in heavy-ion collisions},
author = {Yin, Yi},
abstractNote = {We extract the electrical conductivity σ0 of the quark gluon plasma (QGP) and study the effects of magnetic field and chiral anomaly on soft photon azimuthal anisotropy, v₂, based on the thermal photon spectrum at 0.4GeV < p⊥< 0.6GeV at the RHIC energy. As a basis for my analysis, we derive the behavior of retarded photon self-energy of a strongly interacting neutral plasma in hydrodynamic regime in the presence of magnetic field and chiral anomaly. By evolving the resulting soft thermal photon production rate over the realistic hydrodynamic background and comparing the results with the data from the PHENIX Collaboration, I found that the electrical conductivity at QGP temperature is in the range: 0.4 < σ₀/(e²T) < 1.1, which is comparable with recent studies on lattice. I also compare the contribution from the magnetic field and chiral anomaly to soft thermal photon v₂ with the data. I argue that at the CERN Large Hadron Collider, the chiral magnetic wave would give negative contribution to photon v₂.},
doi = {10.1103/PhysRevC.90.044903},
journal = {Physical Review C, Nuclear Physics},
number = 4,
volume = 90,
place = {United States},
year = {Mon Oct 06 00:00:00 EDT 2014},
month = {Mon Oct 06 00:00:00 EDT 2014}
}
Web of Science
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