EMMI Nuclear and Quark Matter seminar

Shedding light on hadron structure with ultra-peripheral collisions

by Evgeny Kryshen (Petersburg Nuclear Physics Institute (PNPI)(PNPI))

Thursday, February 7, 2019 from to (Europe/Berlin)
at GSI ( EMMI/KBW Lecture Hall Side Room - KBW 1.17 )
Planckstraße 1 64291 Darmstadt
Description
Lead nuclei, accelerated at the LHC, are sources of strong electromagnetic
fields that can be used to measure photon-induced interactions in a new
kinematic regime. These interactions are usually studied in ultra-peripheral
p-Pb and Pb-Pb collisions where hadronic interactions are strongly suppressed.
Vector meson photoproduction is of particular interest since it is sensitive
to gluon distributions in target hadrons. In this talk, an overview of ALICE,
CMS and LHCb results on vector meson photoproduction in ultra-peripheral Pb-Pb
and p-Pb collisions will be presented. Implications for the study of gluon
saturation effects and nuclear gluon shadowing will be discussed. In addition
projections for vector meson photoproduction measurements in LHC Run 3 and 4
will be presented.