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dc.contributor.authorGuzey, V.
dc.contributor.authorStrikman, M.
dc.date.accessioned2024-10-23T10:14:57Z
dc.date.available2024-10-23T10:14:57Z
dc.date.issued2024
dc.identifier.citationGuzey, V., & Strikman, M. (2024). Nuclear suppression of coherent J/ψ photoproduction in heavy-ion ultraperipheral collisions and leading twist nuclear shadowing. <i>Physical Review C</i>, <i>110</i>, Article 045201. <a href="https://doi.org/10.1103/physrevc.110.045201" target="_blank">https://doi.org/10.1103/physrevc.110.045201</a>
dc.identifier.otherCONVID_243380721
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/97637
dc.description.abstractWe determine the nuclear suppression factor SPb(x), where x=M2J/ψ/W2γp with MJ/ψ the J/ψ mass and Wγp the photon-nucleon energy, for the cross section of coherent J/ψ photoproduction in heavy-ion ultraperipheral collisions (UPCs) at the Large Hadron Collider (LHC) and Relativistic Heavy Ion Collider (RHIC) by performing the χ2 fit to all available data on the cross section dσAA→J/ψAA/dy as a function of the J/ψ rapidity y and the photoproduction cross section σγA→J/ψA(Wγp) as a function of Wγp. We find that while the dσAA→J/ψAA/dy data alone constrain SPb(x) for x≥10−3, the combined dσAA→J/ψAA/dy and σγA→J/ψA(Wγp) data allow us to determine SPb(x) in the wide interval 10−5<0.05. In particular, the data favor SPb(x), which decreases with a decrease of x in the 10−4<0.01 interval, and can be both decreasing or constant for x<10−4. Identifying SPb(x) with the ratio of the gluon distributions in Pb and the proton Rg(x,Q20)=gA(x,Q20)/[Agp(x,Q20)], we demonstrate that the leading twist approximation (LTA) for nuclear shadowing provides a good description of all the data on dσAA→J/ψAA/dy and σγA→J/ψA(Wγp) as well as on the experimental values for SPb(x) derived from σγA→J/ψA(Wγp). We also show that modern nuclear PDFs reasonably reproduce SPb(x) as well.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review C
dc.rightsCC BY 4.0
dc.titleNuclear suppression of coherent J/ψ photoproduction in heavy-ion ultraperipheral collisions and leading twist nuclear shadowing
dc.typeresearch article
dc.identifier.urnURN:NBN:fi:jyu-202410236494
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9985
dc.relation.volume110
dc.type.versionpublishedVersion
dc.rights.copyright© Authors 2024
dc.rights.accesslevelopenAccessfi
dc.type.publicationarticle
dc.relation.grantnumber346325
dc.relation.grantnumber835105
dc.relation.grantnumber835105
dc.relation.grantnumber346326
dc.relation.grantnumber330448
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/835105/EU//YoctoLHC
dc.subject.ysoydinfysiikka
dc.subject.ysohiukkasfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1103/physrevc.110.045201
dc.relation.funderResearch Council of Finlanden
dc.relation.funderEuropean Commissionen
dc.relation.funderResearch Council of Finlanden
dc.relation.funderResearch Council of Finlanden
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
jyx.fundingprogramCentre of Excellence, AoFen
jyx.fundingprogramERC Advanced Granten
jyx.fundingprogramCentre of Excellence, AoFen
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramHuippuyksikkörahoitus, SAfi
jyx.fundingprogramERC Advanced Grantfi
jyx.fundingprogramHuippuyksikkörahoitus, SAfi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundinginformationThe research of V.G. was funded by the Academy of Finland Project No. 330448, the Center of Excellence in Quark Matter of the Academy of Finland (Projects No. 346325 and No. 346326), and the European Research Council Project No. ERC-2018-ADG-835105 YoctoLHC. The research of M.S. was supported by the U.S. Department of Energy Office of Science, Office of Nuclear Physics under Award No. DE-FG02-93ER40771.
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