Exclusive dilepton production via timelike Compton scattering in heavy ion collisions

In the present work, kT -factorization formalism is applied to compute the exclusive dilepton production by timelike Compton scattering (TCS) in eA, pA, and AA collisions. The nuclear effects are investigated considering heavy and light ions. The production cross section in terms of the invariant mass and rapidity distribution of the lepton pair is shown. The analysis is done for electron-ion collisions at the Large Hadron-Electron Collider (LHeC), its high-energy upgrade (HE-LHeC), and at the Future Circular Collider (FCC) in lepton-hadron mode. Additionally, ultraperipheral heavy ion collisions at future runs of the Large Hadron Collider (LHC) and at the FCC (hadron-hadron mode) are also considered.

Automated summary

In this study, the kT -factorization formalism is used to calculate the exclusive dilepton production in eA, pA, and AA collisions induced by timelike Compton scattering (TCS), with consideration of nuclear effects on heavy and light ions. The production cross section in terms of invariant mass and rapidity distribution of the lepton pair is shown. The analysis covers electron-ion collisions at LHeC and its potential high-energy upgrade, as well as at FCC, along with considerations for ultraperipheral heavy ion collisions at future runs of LHC and FCC in hadron-hadron mode.