Exclusive Heavy Vector Meson Photoproduction on Nuclei in NLO Perturbative QCD
Eskola, K. J., Guzey, V., Löytäinen, T., Paukkunen, H., & Flett, C. A. (2023). Exclusive Heavy Vector Meson Photoproduction on Nuclei in NLO Perturbative QCD. In J. Chwastowski, K. Golec-Biernat, M. Praszałowicz, M. Przybycień, & R. Staszewski (Eds.), 29th Cracow Epiphany Conference on Physics at the Electron–Ion Collider and Future Facilities : Cracow, Poland, 16–19 January, 2023 (16, pp. 7-A9). Jagiellonian University. Acta Physica Polonica B : Proceedings Supplement. https://doi.org/10.5506/APhysPolBSupp.16.7-A9
Julkaistu sarjassa
Acta Physica Polonica B : Proceedings SupplementPäivämäärä
2023Tekijänoikeudet
© Authors 2023
We make predictions for the cross section of coherent J/ψ photoproduction in Pb–Pb and O–O ultraperipheral collisions (UPCs) at the LHC as a function of the J/ψ rapidity y in the framework of collinear factorization and next-to-leading order (NLO) perturbative QCD. We quantify the strong scale dependence and significant uncertainties due to nuclear PDFs and show that our approach provides a reasonable description of the LHC data on coherent J/ψ photoproduction in Pb–Pb UPCs. We demonstrate that these uncertainties are reduced by approximately a factor of 10 in the scaled ratio of the O–O and Pb–Pb UPC cross sections. Our analysis indicates the dominance of the quark contribution to the UPC cross section at central rapidities, which affects the interpretation of the UPC data.
Julkaisija
Jagiellonian UniversityKonferenssi
Cracow Epiphany Conference on Physics at the Electron–Ion Collider and Future FacilitiesKuuluu julkaisuun
29th Cracow Epiphany Conference on Physics at the Electron–Ion Collider and Future Facilities : Cracow, Poland, 16–19 January, 2023ISSN Hae Julkaisufoorumista
1899-2358Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/194220141
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen Akatemia; Euroopan komissioRahoitusohjelmat(t)
Huippuyksikkörahoitus, SA; Akatemiatutkija, SA; Akatemiahanke, SA
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
We acknowledge the financial support from the Magnus Ehrnrooth foundation (T.L.), the Academy of Finland projects 308301 (H.P.) and 330448 (K.J.E.). This research was funded as part of the Center of Excellence in Quark Matter of the Academy of Finland (projects 346325 and 346326) and of the European Research Council project ERC-2018-ADG-835105 YoctoLHC.Lisenssi
Ellei muuten mainita, aineiston lisenssi on CC BY 4.0