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Ultraperipheral collisions and low-x physics

by Tuomas Lappi

Submission summary

As Contributors: Tuomas Lappi
Preprint link: scipost_202107_00034v1
Date submitted: 2021-07-20 17:01
Submitted by: Lappi, Tuomas
Submitted to: SciPost Physics Proceedings
Proceedings issue: DIS2021
Academic field: Physics
  • High-Energy Physics - Phenomenology
Approach: Theoretical


Ultraperipheral collisions at the LHC and RHIC offer the highest currently available energy for photon-nucleon and photon-nucleus collisions. Thus they are a valuable tool for studying the gluonic structure of hadrons and nuclei at small x. We discuss recent theoretical work towards understanding such exclusive processes at NLO accuracy in QCD perturbation theory. These theoretical advances are also immediately relevant for understanding the physics of deep inelastic scattering at small x. We also discuss experimental results in ultraperipheral collisions, most prominently for exclusive vector meson production.

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Submission scipost_202107_00034v1 on 20 July 2021

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