2009/10/06 by Michael Lublinsky, Claudia Ratti, Edward Shuryak
Earth and Planetary Sciences · Physics and Astronomy · #High-Energy Particle Collisions Research #High-pressure geophysics and materials #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.81.014008
published as Phys.Rev.D81:014008,2010 · 28 pages, 8 figures
arxiv created 2009/10/06 · openalex publication_date 2010/01/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the radiation of photons from quarks scattering on color-magnetic monopoles in the quark-gluon plasma. We consider a temperature regime T\ensuremath\gtrsim2Tc, where monopoles can be considered as static, rare objects embedded into matter consisting mostly of the usual ``electric'' quasiparticles, quarks and gluons. The calculation is performed in the classical, nonrelativistic approximation and results are compared to photon emission from Coulomb scattering of quarks, known to provide a significant contribution to the photon emission rates from quark-gluon plasma. The present study is a first step towards understanding whether this scattering process can give a sizeable contribution to dilepton production in heavy-ion collisions. Our results are encouraging: by comparing the magnitudes of the photon emission rate for the two processes, we find a dominance in the case of quark-monopole scattering. Our results display strong sensitivity to finite densities of quarks and monopoles.