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dc.contributor.authorLappi, Tuomas
dc.contributor.authorMäntysaari, Heikki
dc.contributor.authorRamnath, Andrecia
dc.date.accessioned2020-11-04T11:22:12Z
dc.date.available2020-11-04T11:22:12Z
dc.date.issued2020
dc.identifier.citationLappi, T., Mäntysaari, H., & Ramnath, A. (2020). Next-to-leading order Balitsky-Kovchegov equation beyond large Nc. <i>Physical Review D</i>, <i>102</i>(7), Article 074027. <a href="https://doi.org/10.1103/physrevd.102.074027" target="_blank">https://doi.org/10.1103/physrevd.102.074027</a>
dc.identifier.otherCONVID_43483435
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/72486
dc.description.abstractWe calculate finite-Nc corrections to the next-to-leading order (NLO) Balitsky-Kovchegov (BK) equation. We find analytical expressions for the necessary correlators of six Wilson lines in terms of the two-point function using the Gaussian approximation. In a suitable basis, the problem reduces from the diagonalization of a six-by-six matrix to the diagonalization of a three-by-three matrix, which can easily be done analytically. We study numerically the effects of these finite-Nc corrections on the NLO BK equation. In general, we find that the finite-Nc corrections are smaller than the expected 1/N2c∼10%. The corrections may be large for individual correlators, but have less of an influence on the shape of the amplitude as a function of the dipole size. They have an even smaller effect on the evolution speed as a function of rapidity.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Physical Society (APS)
dc.relation.ispartofseriesPhysical Review D
dc.rightsCC BY 4.0
dc.subject.otherparticle interactions
dc.subject.otherquantum chromodynamics
dc.subject.otherstrong interaction
dc.titleNext-to-leading order Balitsky-Kovchegov equation beyond large Nc
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202011046523
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.issn2470-0010
dc.relation.numberinseries7
dc.relation.volume102
dc.type.versionpublishedVersion
dc.rights.copyright© Authors, 2020
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber824093
dc.relation.grantnumber824093
dc.relation.grantnumber314764
dc.relation.grantnumber681707
dc.relation.grantnumber681707
dc.relation.grantnumber321840
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/824093/EU//STRONG-2020
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/681707/EU//CGCglasmaQGP
dc.subject.ysohiukkasfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1103/physrevd.102.074027
dc.relation.funderEuropean Commissionen
dc.relation.funderResearch Council of Finlanden
dc.relation.funderEuropean Commissionen
dc.relation.funderResearch Council of Finlanden
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
jyx.fundingprogramRIA Research and Innovation Action, H2020en
jyx.fundingprogramPostdoctoral Researcher, AoFen
jyx.fundingprogramERC European Research Council, H2020en
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramRIA Research and Innovation Action, H2020fi
jyx.fundingprogramTutkijatohtori, SAfi
jyx.fundingprogramERC European Research Council, H2020fi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundinginformationThis work was supported by the Academy of Finland, projects No. 314764 (H. M.) and No. 321840 (T. L.), and by the National Research Foundation of South Africa (A. R.). A. R. and T. L. are supported by the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme (Grant Agreement No. ERC-2015-CoG-681707), and by the EU Horizon 2020 research and innovation programme, STRONG-2020 project (Grant Agreement No. 824093).
dc.type.okmA1


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