Exclusive photoproduction of dileptons at high energies

TL;DR

This paper investigates the exclusive photoproduction of dileptons at high energies using the color dipole approach, providing predictions for LHC collisions based on dipole-target scattering amplitudes.

Contribution

It introduces a high energy color dipole model for dilepton photoproduction and applies it to predict outcomes in proton-proton and nucleus-nucleus collisions at the LHC.

Findings

Predicted dilepton production rates at high energies

Dependence of scattering amplitude on atomic number and energy

Implications for electromagnetic interactions in collider experiments

Abstract

The exclusive photoproduction of lepton pairs on nucleon and nucleus target is investigated within the high energy color dipole approach, where the main physical quantity is the dipole-target elastic scattering amplitude that captures the main features of the dependence on atomic number A, on energy and on momentum transfer t. These calculations are input in predictions for electromagnetic interactions in pp and AA collisions to be measured at the LHC.