Lepton pair production from a hot and dense QCD medium in the presence of an arbitrary magnetic field

Abstract

In this article, we have explored the very important quantity of lepton pair production from a hot and dense QCD medium in presence of an arbitrary external magnetic field for simultaneous nonzero values of both the parallel (along the direction of the external field) and perpendicular (lying on the transverse plane to the external field) components of the dilepton momentum. As opposed to the zero magnetic field case (the so-called Born rate) or the lowest Landau level approximated rate, where only the annihilation process contributes, here we observe contributions also arising out of the quark and antiquark decay processes. We found the encouraging result of considerable enhancement of lepton pair production in presence of an arbitrary magnetic field. We decompose the total rate into different physical processes and discuss their behaviors for both zero and nonzero baryon density. The whole analysis is then subjected to an effective model treatment, where we have incorporated the magnetic field induced novel effects of magnetic catalysis (MC) and inverse MC (IMC) through a medium dependent scalar coupling, which leads to some further interesting observations.

21 pages, 10 captioned figures, Effective model scenario with IMC effect included, Matches with the version in PRD

References in corpus (11)

• The Chiral Magnetic Effect
• Quantum field theory in a magnetic field: From quantum chromodynamics to graphene and Dirac semimetals
• The Importance of Asymptotic Freedom for the Pseudocritical Temperature in Magnetized Quark Matter
• Phenomenological Review on Quark-Gluon Plasma: Concepts vs. Observations
• Production and Elliptic Flow of Dileptons and Photons in the semi-Quark Gluon Plasma
• Electromagnetic radiation by quark-gluon plasma in magnetic field
• Effects of anomalous magnetic moment of quarks on the dilepton production from hot and dense magnetized quark matter using the NJL model
• Dilepton production from magnetized quark matter with an anomalous magnetic moment of the quarks using a three-flavor PNJL model
• Vector meson spectral function and dilepton production rate in a hot and dense medium within an effective QCD approach
• Rate and ellipticity of dilepton production in a magnetized quark-gluon plasma
• Low Mass Dilepton Rate from the Deconfined Phase

Cited by in corpus (11)

• Impact of chiral asymmetry and magnetic field on passage of an energetic test parton in a QCD medium
• Magnetic field-dependent electric charge transport in hadronic medium at finite temperature
• The fermion self-energy and damping rate in a hot magnetized plasma
• Production rate and ellipticity of lepton pairs from a rotating hot and dense QCD medium
• Dilepton production from hot and magnetized hadronic matter
• Collective modes of gluons in an anisotropic thermo-magnetic medium
• Ellipticity of dilepton production from a hot and magnetized hadronic medium
• Photon and dilepton emission anisotropy for a magnetized quark-gluon plasma
• Scalar boson emission from a magnetized relativistic plasma
• Interaction field strength between a scalar particle and two massless vector bosons in presence of an external magnetic field
• Thermal Field Theory in the Presence of a Background Magnetic Field and its Application to QCD