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Exclusive photo- and electroproduction of excited light vector mesons via holographic model

Henkels, Cheryl ; de Oliveira, Emmanuel G. ; Pasechnik, Roman LU and Trebien, Haimon (2023) In European Physical Journal C 83(6).
Abstract

In this paper, we study total and differential observables of electro- and photoproduction of light ρ , ω and ϕ mesons as functions of the center-of-mass energy of the γp collision and momentum transfer squared |t|. The corresponding vector mesons wave functions have been computed in the framework of relativistic AdS/QCD holographic approach. A satisfactory description of all available data on ground-state ρ(1 S) , ω(1 S) and ϕ(1 S) mesons production cross sections has been achieved in the color dipole picture. Finally, the key observables of excited ρ(2 S) , ω(2 S) and ϕ(2 S) states production in γ(∗)p collisions have been presented here using a common wave function formalism. This study reveals a large theoretical... (More)

In this paper, we study total and differential observables of electro- and photoproduction of light ρ , ω and ϕ mesons as functions of the center-of-mass energy of the γp collision and momentum transfer squared |t|. The corresponding vector mesons wave functions have been computed in the framework of relativistic AdS/QCD holographic approach. A satisfactory description of all available data on ground-state ρ(1 S) , ω(1 S) and ϕ(1 S) mesons production cross sections has been achieved in the color dipole picture. Finally, the key observables of excited ρ(2 S) , ω(2 S) and ϕ(2 S) states production in γ(∗)p collisions have been presented here using a common wave function formalism. This study reveals a large theoretical uncertainty coming from the modeling of the partial dipole amplitude in the nonperturbative kinematical domain. Hence, the latter could benefit from future measurements of photoproduction of the excited states.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
83
issue
6
article number
551
publisher
Springer
external identifiers
  • scopus:85163751055
ISSN
1434-6044
DOI
10.1140/epjc/s10052-023-11706-5
language
English
LU publication?
yes
id
95e689b0-82bc-4a5f-a4c1-bc3fc81bde39
date added to LUP
2023-09-18 14:37:38
date last changed
2023-09-18 14:37:38
@article{95e689b0-82bc-4a5f-a4c1-bc3fc81bde39,
  abstract     = {{<p>In this paper, we study total and differential observables of electro- and photoproduction of light ρ , ω and ϕ mesons as functions of the center-of-mass energy of the γp collision and momentum transfer squared |t|. The corresponding vector mesons wave functions have been computed in the framework of relativistic AdS/QCD holographic approach. A satisfactory description of all available data on ground-state ρ(1 S) , ω(1 S) and ϕ(1 S) mesons production cross sections has been achieved in the color dipole picture. Finally, the key observables of excited ρ(2 S) , ω(2 S) and ϕ(2 S) states production in γ<sup>(∗)</sup>p collisions have been presented here using a common wave function formalism. This study reveals a large theoretical uncertainty coming from the modeling of the partial dipole amplitude in the nonperturbative kinematical domain. Hence, the latter could benefit from future measurements of photoproduction of the excited states.</p>}},
  author       = {{Henkels, Cheryl and de Oliveira, Emmanuel G. and Pasechnik, Roman and Trebien, Haimon}},
  issn         = {{1434-6044}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal C}},
  title        = {{Exclusive photo- and electroproduction of excited light vector mesons via holographic model}},
  url          = {{http://dx.doi.org/10.1140/epjc/s10052-023-11706-5}},
  doi          = {{10.1140/epjc/s10052-023-11706-5}},
  volume       = {{83}},
  year         = {{2023}},
}