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Coherent photoproduction of light vector mesons off nuclear targets in the dipole picture

Henkels, Cheryl ; de Oliveira, Emmanuel G. ; Pasechnik, Roman LU and Trebien, Haimon (2025) In Nuclear Physics A 1055.
Abstract

We study the coherent photoproduction of light vector mesons in Pb-Pb collisions in the framework of color dipole approach. We employ the Glauber–Gribov formalism supplemented by an effective suppression factor RG accounting for the gluon shadowing correction. We adjust the latter to reproduce the deep inelastic structure function F2 (E665) and ρ meson photoproduction (ALICE) data. We achieve a good description of the available data points with RG=0.85 at scale Mρ2/4=0.15 GeV2. In addition, employing this suppression factor, we present predictions for coherent ρ(2S), ω(1S,2S) and ϕ(1S,2S) photoproduction observables using the holographic vector meson wave functions.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nuclear Physics A
volume
1055
article number
123018
publisher
Elsevier
external identifiers
  • scopus:85214787452
ISSN
0375-9474
DOI
10.1016/j.nuclphysa.2025.123018
language
English
LU publication?
yes
id
0a843725-3bc1-4f3e-9aaf-202b6623bbba
date added to LUP
2025-03-10 11:41:41
date last changed
2025-04-04 14:43:08
@article{0a843725-3bc1-4f3e-9aaf-202b6623bbba,
  abstract     = {{<p>We study the coherent photoproduction of light vector mesons in Pb-Pb collisions in the framework of color dipole approach. We employ the Glauber–Gribov formalism supplemented by an effective suppression factor R<sub>G</sub> accounting for the gluon shadowing correction. We adjust the latter to reproduce the deep inelastic structure function F<sub>2</sub> (E665) and ρ meson photoproduction (ALICE) data. We achieve a good description of the available data points with R<sub>G</sub>=0.85 at scale M<sub>ρ</sub><sup>2</sup>/4=0.15 GeV<sup>2</sup>. In addition, employing this suppression factor, we present predictions for coherent ρ(2S), ω(1S,2S) and ϕ(1S,2S) photoproduction observables using the holographic vector meson wave functions.</p>}},
  author       = {{Henkels, Cheryl and de Oliveira, Emmanuel G. and Pasechnik, Roman and Trebien, Haimon}},
  issn         = {{0375-9474}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Physics A}},
  title        = {{Coherent photoproduction of light vector mesons off nuclear targets in the dipole picture}},
  url          = {{http://dx.doi.org/10.1016/j.nuclphysa.2025.123018}},
  doi          = {{10.1016/j.nuclphysa.2025.123018}},
  volume       = {{1055}},
  year         = {{2025}},
}