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Latest ALICE results on J/$ψ$ photoproduction in ultra-peripheral collisions at the LHC

by T. Herman

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Submission summary

Authors (as registered SciPost users): Tomas Herman
Submission information
Preprint Link:  (pdf)
Date accepted: 2022-03-04
Date submitted: 2021-07-29 10:03
Submitted by: Herman, Tomas
Submitted to: SciPost Physics Proceedings
Proceedings issue: 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021)
Ontological classification
Academic field: Physics
  • High-Energy Physics - Experiment
  • Nuclear Physics - Experiment


Ultra-peripheral collisions (UPCs), studied using the ALICE detector, allow us to investigate the low-$x$ behavior of the gluon distribution of the colliding particles. Two new measurements of coherent J/$\psi$ photoproduction cross section from Pb-Pb UPCs at $\sqrt{s_{\rm NN}}=5.02$ TeV are presented: the first measurement of the $|t|$-dependence of the cross section providing a new tool to investigate the transverse gluonic structure at low Bjorken-$x$ and a rapidity-differential measurement at midrapidity allowing us to provide stringent constraints on nuclear gluon shadowing and saturation models. In addition, prospects for heavy vector meson photoproduction measurements in LHC Run 3 and 4 are presented.

Published as SciPost Phys. Proc. 8, 106 (2022)

Reports on this Submission

Anonymous Report 1 on 2022-2-16 (Invited Report)


Paper is very nicely written with all results properly summarized . I recommend to publish as it is.

  • validity: -
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