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dc.contributor.authorEscobedo, Miguel Àngel
dc.contributor.authorLappi, Tuomas
dc.date.accessioned2020-03-02T09:19:02Z
dc.date.available2020-03-02T09:19:02Z
dc.date.issued2020
dc.identifier.citationEscobedo, M. À., & Lappi, T. (2020). Dipole picture and the nonrelativistic expansion. <i>Physical Review D</i>, <i>101</i>(3), Article 034030. <a href="https://doi.org/10.1103/PhysRevD.101.034030" target="_blank">https://doi.org/10.1103/PhysRevD.101.034030</a>
dc.identifier.otherCONVID_34778454
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/68020
dc.description.abstractWe study exclusive quarkonium production in the dipole picture at next-to-leading-order (NLO) accuracy, using the nonrelativistic expansion for the quarkonium wave function. This process offers one of the best ways to obtain information about gluon distributions at small x, in ultraperipheral heavy ion collisions and in deep inelastic scattering. The quarkonium light-cone wave functions needed in the dipole picture have typically been available only at tree level, either in phenomenological models or in the nonrelativistic limit. In this paper, we discuss the compatibility of the dipole approach and the nonrelativistic expansion and compute NLO relativistic corrections to the quarkonium light-cone wave function in light-cone gauge. Using these corrections, we recover results for the NLO decay width of quarkonium to e+e−, and we check that the nonrelativistic expansion is consistent with Efremov-Radyushkin-Brodsky-Lepage evolution and with Balitsky-Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner evolution of the target. The results presented here will allow computing the exclusive quarkonium production rate at NLO once the one-loop photon wave function with massive quarks, currently under investigation, is known.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review D
dc.rightsCC BY 4.0
dc.subject.otherelectron-ion collisions
dc.subject.otherrelativistic heavy-ion collions
dc.titleDipole picture and the nonrelativistic expansion
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202003022242
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn2470-0010
dc.relation.numberinseries3
dc.relation.volume101
dc.type.versionpublishedVersion
dc.rights.copyright© The Authors, 2020
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber297058
dc.relation.grantnumber303756
dc.relation.grantnumber681707
dc.relation.grantnumber681707
dc.relation.grantnumber267321
dc.relation.grantnumber321840
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/681707/EU//CGCglasmaQGP
dc.subject.ysoydinfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1103/PhysRevD.101.034030
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
dc.relation.funderEuropean Commissionen
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramERC European Research Council, H2020fi
jyx.fundingprogramAkatemiatutkijan tehtävä, SAfi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramERC European Research Council, H2020en
jyx.fundingprogramResearch post as Academy Research Fellow, AoFen
jyx.fundingprogramAcademy Project, AoFen
jyx.fundinginformationThis work has been supported by theAcademy of Finland, Projects No. 267321, No. 303756,and No. 321840 and by the European Research Council(ERC) under the European Union’s Horizon 2020 researchand innovation programme (Grant No. ERC-2015-CoG-681707). The work of M. A. E. was supported by theAcademy of Finland Project No. 297058, byMinisterio deCiencia e Innovacionof Spain under Project No. FPA2017-83814-P and Maria de Maetzu Unit of Excellence MDM-2016-0692, by Xunta de Galicia and FEDER.


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