SciPost logo

SciPost Submission Page

Coherent photoproduction of $J/\psi$ in nucleus-nucleus collisions \\in the color dipole approach- an update

by Agnieszka {\L}uszczak and Wolfgang Sch{\"a}fer

This is not the latest submitted version.

This Submission thread is now published as

Submission summary

Authors (as registered SciPost users): Agnieszka Luszczak
Submission information
Preprint Link: scipost_202108_00059v1  (pdf)
Date submitted: 2021-08-24 15:28
Submitted by: Luszczak, Agnieszka
Submitted to: SciPost Physics Proceedings
Proceedings issue: 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021)
Ontological classification
Academic field: Physics
Specialties:
  • High-Energy Physics - Phenomenology
Approach: Phenomenological

Abstract

We discuss the role of $c \bar c g$-Fock states in the diffractive photoproduction of $J/\psi$-mesons. We build on our earlier description of the process in the color-dipole approach, where we took into account the rescattering of $c \bar c$ pairs using a Glauber-Gribov form of the dipole-nucleus amplitude. We compare the results of our calculations to recent data on the photoproduction of $J/\psi$ by the ALICE and LHCb collaborations.

Current status:
Has been resubmitted

Reports on this Submission

Anonymous Report 1 on 2022-2-19 (Invited Report)

  • Cite as: Anonymous, Report on arXiv:scipost_202108_00059v1, delivered 2022-02-19, doi: 10.21468/SciPost.Report.4471

Report

The manuscript presents the diffractive photoproduction of $J/\psi$ mesons in ultraperipheral heavy-ion collisions in the color dipole approach. The updated results account for higher Fock-states in the color dipole formalism. These results are compared with the photoproduction of $J/\psi$ in ultraperipheral lead-lead collisions at $\sqrt{s_{NN}}= 2.76$ and $\sqrt{s_{NN}}= 5.02$ TeV.
Higher Fock-states improves the agreement of the dipole approach with the data points which are taken from the ALICE Collaboration at midrapidity.
The text is well-written and worth publishing.

Minor comments:
$\bullet$ on page 5, Figure 3: cross section fro the $\rightarrow$ cross section for the
$+$ here, in the Figure 3, it might be worth mentioning what the references are for those data points.

  • validity: -
  • significance: -
  • originality: -
  • clarity: -
  • formatting: -
  • grammar: -

Login to report or comment