A1 Journal article (refereed)
Energy dependent nuclear suppression from gluon saturation in exclusive vector meson production (2024)
Mäntysaari, H., Salazar, F., & Schenke, B. (2024). Energy dependent nuclear suppression from gluon saturation in exclusive vector meson production. Physical Review D, 109(7), Article L071504. https://doi.org/10.1103/PhysRevD.109.L071504
JYU authors or editors
Publication details
All authors or editors: Mäntysaari, Heikki; Salazar, Farid; Schenke, Björn
Journal or series: Physical Review D
ISSN: 2470-0010
eISSN: 2470-0029
Publication year: 2024
Publication date: 15/04/2024
Volume: 109
Issue number: 7
Article number: L071504
Publisher: American Physical Society (APS)
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1103/PhysRevD.109.L071504
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/94589
Publication is parallel published: https://arxiv.org/abs/2312.04194
Additional information: Letter
Abstract
We calculate the exclusive J/ψ photoproduction cross section at high energies from the Color Glass Condensate approach. The results are compared to the center-of-mass energy dependent γ+A→J/ψ+A cross sections extracted from measurements in ultra peripheral heavy ion collisions at RHIC and LHC. We predict strong saturation-driven nuclear suppression at high energies, while LHC data prefers even stronger suppression. We explore the effect of nucleon shape fluctuations on the nuclear suppression in the coherent and incoherent cross sections, and show that the most recent measurement of the |t|-differential incoherent J/ψ cross section prefers large event-by-event fluctuations of the nucleon substructure in heavy nuclei, comparable to that found for a free proton.
Keywords: gluons; quantum chromodynamics; particle physics; nuclear physics
Contributing organizations
Related projects
- QCD Matter in Extreme Conditions
- Mäntysaari, Heikki
- Research Council of Finland
- QCD Matter in Extreme Conditions
- Mäntysaari, Heikki
- Research Council of Finland
- Yoctosecond imaging of QCD collectivity using jet
observables’ — ‘YoctoLHC’- Niemi, Harri
- European Commission
- The strong interaction at the frontier of knowledge: fundamental research and applications- STRONG -2020
- Lappi, Tuomas
- European Commission
Ministry reporting: Yes
Reporting Year: 2024
Preliminary JUFO rating: 2