Soft-contribution to thermal photon emission from chiral QCD medium
Nilanjan Chaudhuri, Sourav Duari, Pradip Roy, Sourav Sarkar
TL;DR
This paper calculates the thermal photon emission rate from a chiral quark-gluon plasma, revealing that chiral imbalance enhances photon emission due to additional chemical potential terms.
Contribution
It introduces a novel calculation of photon emission rates considering chiral imbalance, highlighting the impact of chiral chemical potentials on thermal radiation.
Findings
Chiral imbalance increases photon emission rates.
Different dispersion of L and R modes affects thermal masses.
Additional terms proportional to chemical potentials enhance emission.
Abstract
We evaluate the thermal photon emission rate from a chirally asymmetric quark gluon plasma using the Hard Thermal Loop approximation. The quasiparticle and plasmino modes prevalent at finite temperature split into L and R-modes in the presence of chiral imbalance and are found to disperse differently acquiring different thermal masses. The soft contribution to the thermal photon emission rate obtained from the retarded self-energy is found to contain additional terms proportional to the square of the quark and chiral chemical potentials which is found to cause an enhancement to thermal photon emission in the presence of chiral imbalance.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions · Dust and Plasma Wave Phenomena