A1 Journal article (refereed)
Next-to-leading order perturbative QCD predictions for exclusive J/ψ photoproduction in oxygen-oxygen and lead-lead collisions at energies available at the CERN Large Hadron Collider (2023)

Eskola, K. J., Flett, C. A., Guzey, V., Löytäinen, T., & Paukkunen, H. (2023). Next-to-leading order perturbative QCD predictions for exclusive J/ψ photoproduction in oxygen-oxygen and lead-lead collisions at energies available at the CERN Large Hadron Collider. Physical Review C, 107(4), Article 044912. https://doi.org/10.1103/PhysRevC.107.044912

JYU authors or editors

Publication details

All authors or editors: Eskola, K. J.; Flett, C. A.; Guzey, V.; Löytäinen, T.; Paukkunen, H.

Journal or series: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Publication year: 2023

Publication date: 28/04/2023

Volume: 107

Issue number: 4

Article number: 044912

Publisher: American Physical Society (APS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevC.107.044912

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/87563

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2210.16048

Abstract

We present predictions for the cross sections of coherent J/ψ photoproduction in lead-lead and oxygen-oxygen ultraperipheral collisions (UPCs) as a function of the J/ψ rapidity at the LHC in the framework of collinear factorization at next-to-leading order (NLO) in perturbative QCD. Taking generalized parton distribution functions in their forward limit and using the EPPS21, nNNPDF3.0, and nCTEQ15WZSIH nuclear parton distribution functions, we update our recent results for Pb-Pb collisions, make detailed predictions for O-O collisions for several beam energy configurations, and examine the ratio of O-O and Pb-Pb UPC cross sections. We show that the latter observable allows one to significantly reduce the scale uncertainty of NLO predictions for this process.

Keywords: particle physics; quantum chromodynamics

Contributing organizations

Related projects

Ministry reporting: Yes

VIRTA submission year: 2023

JUFO rating: 2