Ultra-peripheral-collision studies in the fixed-target mode with the proton and lead LHC beams

Abstract

We address the physics case related to the studies of ultra-peripheral pH, pPb, PbH, and PbPb collisions in the fixed-target mode at the LHC. In particular, we discuss how one can measure the gluon generalized parton distribution E_g(x,xi,t) in exclusive J/psi photoproduction with a transversely polarized hydrogen target.

arXiv comment6 pages, 3 figures, Proceedings of the International Conference on Hard & Electromagnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2018), 30 September-5 October 2018, Aix-Les-Bains, France

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