2013/12/31 by Yi Yin · 3 citations
Physics and Astronomy · #Anisotropy #Bremsstrahlung #Condensed matter physics #Electron #High-Energy Particle Collisions Research #Large Hadron Collider #Magnetic field #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Plasma #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Quark–gluon plasma #Soft photon #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.90.044903
published as Phys. Rev. C 90, 044903 (2014) · 17 pages, 2 figures, published version
openalex publication_date 2014/10/06 · arxiv created 2014/10/13 · arxiv updated 2014/10/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
I extract the electrical conductivity \ensuremathσ0 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 0.4\phantom\rule0.16em0exGeV\phantom\rule4pt0ex<p_\ensuremath⊥<0.6\phantom\rule0.16em0exGeV at the Brookhaven Relativistic Heavy Ion Collider energy. As a basis for my analysis, I 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<\ensuremathσ0/(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.