Coherent photoproduction of J/ψ in nucleus-nucleus collisions in the color dipole approach
Authors:
- Agnieszka Łuszczak,
- Wolfgang Schäfer
Abstract
We investigate the exclusive photoproduction of J/ψ mesons in ultraperipheral heavy-ion collisions in the color dipole approach. We first test a number of dipole cross sections fitted to inclusive F2 data against the total cross section of exclusive J/ψ production on the free nucleon. We then use the color dipole formulation of Glauber-Gribov theory to calculate the diffractive amplitude on the nuclear target. The real part of the free-nucleon amplitude is taken into account consistent with the rules of Glauber theory. We compare our results to recent published and preliminary data on exclusive J/ψ production in ultraperipheral lead-lead collisions at sNN=2.76 and sNN=5.02TeV. Especially at high-γA energies there is room for additional shadowing corrections, corresponding to triple-Pomeron terms or shadowing from large mass diffraction.
- Record ID
- CUT17faaa653eb245d69b97f5b1c7df9b07
- Publication categories
- ;
- Author
- Journal series
- Physical Review C, ISSN 2469-9985, e-ISSN 2469-9993, [1538-4497]
- Issue year
- 2019
- Vol
- 99
- No
- 4
- Pages
- [1-9]
- Article number
- 044905
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 8-9; Bibliografia (liczba pozycji) - 61; Oznaczenie streszczenia - Streszcz. ang.; Numeracja w czasopiśmie - Vol. 99, Iss. 4
- Keywords in Polish
- modele dipolowe, rozkład gluonu, zderzenia ciężkich jąder
- DOI
- DOI:10.1103/PhysRevC.99.044905 Opening in a new tab
- URL
- https://journals.aps.org/prc/abstract/10.1103/PhysRevC.99.044905 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT17faaa653eb245d69b97f5b1c7df9b07/
- URN
urn:pkr-prod:CUT17faaa653eb245d69b97f5b1c7df9b07
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