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Dilepton production from chirally asymmetric matter

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arxiv 2204.00892 v2 pith:VE2J2KI5 submitted 2022-04-02 hep-ph nucl-th

classification hep-phnucl-th
keywords dileptonmassproductionasymmetricchemicalchirallyfunctioninvariant
verification ladder T0 review T1 audit T2 compute T3 formal
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We evaluate the dilepton production rate (DPR) from hot and dense chirally asymmetric quark matter. The presence of a finite chiral chemical potential (CCP) in the electromagnetic spectral function results in the appearance of new cut structures signifying additional scattering processes in the medium which leads to a significant enhancement in the DPR at lower values of invariant mass. The constituent quark mass evaluated using a 3-flavour Nambu--Jona-Lasinio model is also non-trivially affected by the CCP. These are found to result in a continuous dilepton production rate as a function of the invariant mass for higher values of temperature and baryonic chemical potential.

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