# Charmonium production in ultra-peripheral heavy ion collisions with two-photon processes

## TL;DR

This paper investigates the production of high transverse momentum charmonium and exotic states in ultra-peripheral collisions via two-photon interactions across RHIC, LHC, and FCC energies, demonstrating experimental feasibility.

## Contribution

It provides detailed calculations of differential cross sections for charmonium production in ultra-peripheral collisions using large photon fluxes, extending predictions to future collider energies.

## Key findings

- Production cross sections are significant at current collider energies.
- Experimental detection of these processes is feasible at RHIC, LHC, and FCC.
- The study offers predictions for future experimental verification.

## Abstract

We calculate the production of large-pTcharmonium and narrow resonance state (exotic charmonium) in proton-proton, proton-nucleus, and nucleus-nucleus collisions with the semi-coherent two-photon interactions at Relativistic Heavy Ion Collider (RHIC), Large Hadron Collider (LHC), and Future Circular Collider (FCC) energies. Using the large quasi-real photon fluxes, we present the \gamma\gamma->H differential cross section for charmonium and narrow resonance state production at large transverse momentum in ultra-peripheral heavy ion collisions. The numerical results demonstrate that the experimental study of ultra-peripheral col-lisions is feasible at RHIC, LHC, and FCC energies.