Recent ALICE results on coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions

Apr 10, 2019, 10:45 AM
20m
Cavallerizza Reale - Aula Multifunzione

Cavallerizza Reale - Aula Multifunzione

Via Verdi, 9 Turin
Parallel Session Talk WG2: Low-x and Diffraction WG2: Small-x and Diffraction

Speaker

Evgeny Kryshen (Petersburg Nuclear Physics Institut (RU))

Description

The strong electromagnetic fields of Pb nuclei, accelerated at the LHC, can be used to measure photon-induced interactions in a new kinematic regime. Photon-induced processes are usually studied in ultra-peripheral Pb-Pb collisions where hadronic interactions are strongly suppressed. Coherent charmonium photoproduction is of particular interest since it is sensitive to poorly known gluon shadowing effects in target Pb ions. In this contribution, recent ALICE results on the coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions from LHC Run 2 will be presented. The implications for the study of nuclear gluon shadowing will be discussed. In addition projections for heavy vector meson photoproduction measurements in LHC Run 3 and 4 will be presented.

Primary author

Evgeny Kryshen (Petersburg Nuclear Physics Institut (RU))

Presentation materials