Azimuthal asymmetries of muon pair production in ultraperipheral heavy ion collisions

In this paper we study azimuthal asymmetries of the muon pair production in ultraperipheral heavy-ion collisions within the joint impact parameter and transverse momentum-dependent framework. The final state QED radiation effects are resummed to all orders in perturbation theory, where the complete muon mass corrections are also taken into account. We further make numerical estimations for azimuthal asymmetries in the different kinematic regions accessible at RHIC and LHC with the derived resummation formula. We find that the lepton mass effects can give sizable corrections to the asymmetries at relatively large pair transverse momentum at RHIC energy.

Automated summary

In this paper, we investigate the azimuthal asymmetries of muon pair production in ultraperipheral heavy-ion collisions using the joint impact parameter and transverse momentum-dependent framework. By resumming the final state QED radiation effects to all orders in perturbation theory and taking into account the complete muon mass corrections, we provide numerical estimations for the asymmetries in different kinematic regions accessible at RHIC and LHC. We find that the lepton mass effects can significantly modify the asymmetries at relatively large pair transverse momentum at RHIC energy.