Lepton pair photoproduction in peripheral relativistic heavy-ion collisions

Abstract

We study the lepton pair photoproduction in peripheral heavy-ion collisions based on the formalism in our previous work [Phys. Rev. D 104, 056011 (2021)]. We present the numerical results for the distributions of the transverse momentum, azimuthal angle and invariant mass for $e^{+}{e}^{-}$ and ${\mu }^{+}{\mu }^{-}$ pairs as functions of the impact parameter and other kinematic variables in Au+Au collisions. Our calculation incorporates the information on the transverse momentum and polarization of photons which is essential to describe the experimental data. We observe a broadening effect in the transverse momentum for lepton pairs with and without smear effects. We also observe a significant enhancement in the distribution of $\cos (2\phi )$ for ${\mu }^{+}{\mu }^{-}$ pairs. Our results provide a baseline for future studies of other higher order corrections beyond Born approximation and medium effects in the lepton pair production.

19 pages, 10 figures

References in corpus (16)

• The Chiral Magnetic Effect
• Quantum field theory in a magnetic field: From quantum chromodynamics to graphene and Dirac semimetals
• Numerical magneto-hydrodynamics for relativistic nuclear collisions
• Experimental searches for the chiral magnetic effect in heavy-ion collisions
• Probing the linear polarization of photons in ultraperipheral heavy ion collisions
• Azimuthal asymmetries for quark pair production in pA collisions
• Chiral electric separation effect in the quark-gluon plasma
• Impact parameter dependence of the azimuthal asymmetry in lepton pair production in heavy ion collisions
• Vacuum birefringence in strong magnetic fields: (II) Complex refractive index from the lowest Landau level
• Chiral Hall Effect and Chiral Electric Waves
• Anomalous magnetohydrodynamics with longitudinal boost invariance and chiral magnetic effect
• Centrality dependence of dilepton production via $\gamma \gamma$ processes from Wigner distributions of photons in nuclei
• Boost invariant formulation of the chiral kinetic theory
• Production of heavy charged particles in proton-proton ultraperipheral collisions at the Large Hadron Collider: survival factor
• Lepton pair production in ultra-peripheral collisions
• Two-Photon Interactions with Nuclear Breakup in Relativistic Heavy Ion Collisions

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• Azimuthal asymmetries of muon pair production in ultraperipheral heavy ion collisions
• Photoproduction of $e^{+}{e}^{-}$ in peripheral isobar collisions
• Azimuthal decorrelation for photon induced dijet production in ultra-peripheral collisions of heavy ions
• Photoproduction of lepton pair in ultra-relativistic heavy-ion collisions
• Constraining axion-gluon coupling in monohadron processes
• Nuclear deformation effects in photoproduction of $\rho$ mesons in ultraperipheral isobaric collisions
• Factorization of photon induced processes in ultra-peripheral heavy ion collisions
• Linearly Polarized Photon Fusion as a Precision Probe of the Tau Lepton Dipole Moments at Lepton Colliders