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dc.contributor.authorBrambilla, Nora
dc.contributor.authorEscobedo Espinosa, Miguel
dc.contributor.authorSoto, Joan
dc.contributor.authorVairo, Antonio
dc.date.accessioned2018-04-25T10:11:12Z
dc.date.available2018-04-25T10:11:12Z
dc.date.issued2018
dc.identifier.citationBrambilla, N., Escobedo Espinosa, M., Soto, J., & Vairo, A. (2018). Heavy quarkonium suppression in a fireball. <i>Physical Review D</i>, <i>97</i>(7), Article 074009. <a href="https://doi.org/10.1103/PhysRevD.97.074009" target="_blank">https://doi.org/10.1103/PhysRevD.97.074009</a>
dc.identifier.otherCONVID_28009092
dc.identifier.otherTUTKAID_77402
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/57752
dc.description.abstractWe perform a comprehensive study of the time evolution of heavy-quarkonium states in an expanding hot QCD medium by implementing effective field theory techniques in the framework of open quantum systems. The formalism incorporates quarkonium production and its subsequent evolution in the fireball including quarkonium dissociation and recombination. We consider a fireball with a local temperature that is much smaller than the inverse size of the quarkonium and much larger than its binding energy. The calculation is performed at an accuracy that is leading order in the heavy-quark density expansion and next-to-leading order in the multipole expansion. Within this accuracy, for a smooth variation of the temperature and large times, the evolution equation can be written as a Lindblad equation. We solve the Lindblad equation numerically both for a weakly coupled quark-gluon plasma and a strongly coupled medium. As an application, we compute the nuclear modification factor for the Υ(1S) and Υ(2S) states. We also consider the case of static quarks, which can be solved analytically. Our study fulfills three essential conditions: it conserves the total number of heavy quarks, it accounts for the non-Abelian nature of QCD, and it avoids classical approximations.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review D
dc.subject.otherquarkonia
dc.subject.otherrelativistic heavy-ion collisions
dc.titleHeavy quarkonium suppression in a fireball
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201804192129
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2018-04-19T12:15:13Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn2470-0010
dc.relation.numberinseries7
dc.relation.volume97
dc.type.versionpublishedVersion
dc.rights.copyright© American Physical Society, 2018. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber303756
dc.format.contentfulltext
dc.relation.doi10.1103/PhysRevD.97.074009
dc.relation.funderSuomen Akatemiafi
dc.relation.funderResearch Council of Finlanden
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundinginformationThe work of N. B. and A. V. was supported by the Deutsche Forschungsgemeinschaft (DFG) Grant No. BR 4058/1-2 “Effective field theories for heavy probes of hot plasma” and by the DFG cluster of excellence “Origin and structure of the universe” (www.universe-cluster.de). The work of M. A. E. was supported by the Academy of Finland, Project No. 303756. J. S. was supported by the CPAN CSD2007-00042 Consolider–Ingenio 2010 program; the FPA2013-43425-P, FPA2013-4657, FPA2016-81114-P and FPA2016-76005-C2-1-P projects (Spain); and the 2014-SGR-104 grant (Catalonia).
dc.type.okmA1


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