Dilepton production from chirally asymmetric matter

Autor: Nilanjan Chaudhuri, Snigdha Ghosh, Sourav Sarkar, Pradip Roy
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Physical Review
Popis: 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.
Comment: Version published in Physical Review D
Databáze: OpenAIRE