# New Trends in High-Energy Physics

24-30 September 2018
Budva, Becici, "Splendid Hotel"
Europe/Podgorica timezone

## Incoherent and coherent diffractive production of $J/\psi$ and $\Upsilon$ on heavy nuclei

Not scheduled
25m
Budva, Becici, "Splendid Hotel"

### Speaker

Wolfgang Schaefer (Institute of Nuclear Physics PAN)

### Description

Recently there has been much interest in the exclusive and semiexclusive production of vector mesons in nucleus-nucleus collisions at the LHC. These processes are induced by the strong electromagnetic field of one of the ions. The relevant subprocesses are the coherent and incoherent diffractive photoproduction mechanisms. We develop the multiple scattering expansion fro incoherent photoproduction in the color dipole model and use new recent fits of the color dipole cross section to precise HERA data on F2 for the numerical predictions.

### Summary

Based on

A.~Łuszczak and W.~Schäfer,
Incoherent diffractive photoproduction of $J/\psi$ and $\Upsilon$ on heavy nuclei in the color dipole approach,''
Phys.\ Rev.\ C {\bf 97} (2018) no.2, 024903

and ongoing work by us.

### Primary author

Wolfgang Schaefer (Institute of Nuclear Physics PAN)

 Slides