PHOTON 2019 - International Conference on the Structure and the Interactions of the Photon. Satellite Workshop: Photon Physics and Simulation at Hadron Colliders.

"Coherent photoproduction of J/ψ in nucleus-nucleus collisions and future perspectives for electron-ion collider "

5 Jun 2019, 17:25

20m

Bruno Touschek Auditorium (INFN-LNF, Italy)

Talk Future Perspectives Future Perspectives

Speaker

Agnieszka Luszczak (Cracow University of Technology)

Description

We investigate the exclusive photoproduction of J/ψ mesons in ultraperipheral heavy-ion collisions in the color dipole approach.
We use the color dipole formulation of Glauber-Gribov theory to calculate the diffractive amplitude on the
nuclear target. We compare our results to recent published data on exclusive J/ψ production in ultraperipheral
lead-lead collisions at √sNN=2.76 and √sNN=5.02TeV. We describe these data well, however at high-γA
energies there is room for additional shadowing corrections, corresponding to triple-Pomeron terms or shadowing from large mass diffraction.
It is very interesting to investigate this issue at future measurements at electron-ion collider (EIC) .
It will be crucial for a deeper understanding of the nuclear glue.

Based on Phys.Rev. C99 (2019) no.4, 04490

Presentation materials

photon2019-A.L.pdf