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Exclusive photoproduction of excited quarkonia in ultraperipheral collisions

Henkels, Cheryl ; De Oliveira, Emmanuel G. ; Pasechnik, Roman LU and Trebien, Haimon (2020) In Physical Review D 102(1).
Abstract

In this paper, we discuss the exclusive photoproduction of ground and excited states of ψ(1S,2S) and ϒ(1S,2S) in ultraperipheral collisions (UPCs). Using the potential model in order to obtain the vector meson wave function, we find a good agreement of our calculations with data from the LHC and HERA colliders for J/ψ(1S,2S) and ϒ(1S) in γp collisions. We extend the calculations to the nuclear target case applying them to AA UPCs with the use of the shadowing and finite coherence length effects fitted to the data. Our results are compared to the recent LHC data, in both incoherent (J/ψ(1S) at 2.76 TeV) and coherent (J/ψ(1S) at 2.76 and 5.02 TeV) processes. We also show the corresponding predictions for the excited states, in the hope... (More)

In this paper, we discuss the exclusive photoproduction of ground and excited states of ψ(1S,2S) and ϒ(1S,2S) in ultraperipheral collisions (UPCs). Using the potential model in order to obtain the vector meson wave function, we find a good agreement of our calculations with data from the LHC and HERA colliders for J/ψ(1S,2S) and ϒ(1S) in γp collisions. We extend the calculations to the nuclear target case applying them to AA UPCs with the use of the shadowing and finite coherence length effects fitted to the data. Our results are compared to the recent LHC data, in both incoherent (J/ψ(1S) at 2.76 TeV) and coherent (J/ψ(1S) at 2.76 and 5.02 TeV) processes. We also show the corresponding predictions for the excited states, in the hope that future measurements could provide more detailed information about the vector meson wave functions and nuclear effects.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D
volume
102
issue
1
article number
014024
publisher
American Physical Society
external identifiers
  • scopus:85091587309
ISSN
2470-0010
DOI
10.1103/PhysRevD.102.014024
language
English
LU publication?
yes
id
d29a6a34-991d-46d7-97b5-f36f6999bb5b
date added to LUP
2021-01-11 14:48:31
date last changed
2025-04-04 14:01:17
@article{d29a6a34-991d-46d7-97b5-f36f6999bb5b,
  abstract     = {{<p>In this paper, we discuss the exclusive photoproduction of ground and excited states of ψ(1S,2S) and ϒ(1S,2S) in ultraperipheral collisions (UPCs). Using the potential model in order to obtain the vector meson wave function, we find a good agreement of our calculations with data from the LHC and HERA colliders for J/ψ(1S,2S) and ϒ(1S) in γp collisions. We extend the calculations to the nuclear target case applying them to AA UPCs with the use of the shadowing and finite coherence length effects fitted to the data. Our results are compared to the recent LHC data, in both incoherent (J/ψ(1S) at 2.76 TeV) and coherent (J/ψ(1S) at 2.76 and 5.02 TeV) processes. We also show the corresponding predictions for the excited states, in the hope that future measurements could provide more detailed information about the vector meson wave functions and nuclear effects. </p>}},
  author       = {{Henkels, Cheryl and De Oliveira, Emmanuel G. and Pasechnik, Roman and Trebien, Haimon}},
  issn         = {{2470-0010}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review D}},
  title        = {{Exclusive photoproduction of excited quarkonia in ultraperipheral collisions}},
  url          = {{http://dx.doi.org/10.1103/PhysRevD.102.014024}},
  doi          = {{10.1103/PhysRevD.102.014024}},
  volume       = {{102}},
  year         = {{2020}},
}