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Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(NN)-N-s=2.76 TeV
dc.creator | Chatrchyan, S. | |
dc.creator | Adžić, Petar | |
dc.creator | Đorđević, Miloš | |
dc.creator | Krpić, D. | |
dc.creator | Milošević, Jovan | |
dc.creator | Milenović, Predrag | |
dc.creator | Reković, Vladimir | |
dc.date.accessioned | 2018-03-01T21:54:19Z | |
dc.date.available | 2018-03-01T21:54:19Z | |
dc.date.issued | 2011 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/4434 | |
dc.description.abstract | A comparison of the relative yields of Upsilon resonances in the mu(+)mu(-) decay channel in Pb-Pb and pp collisions at a center-of-mass energy per nucleon pair of 2.76 TeV is performed with data collected with the CMS detector at the LHC. Using muons of transverse momentum above 4 GeV/c and pseudorapidity below 2.4, the double ratio of the Upsilon(2S) and Upsilon(3S) excited states to the Upsilon(1S) ground state in Pb-Pb and pp collisions, [Upsilon(2S + 3S)/Upsilon(1S)](Pb-Pb) /[Upsilon 2S + 3S)/Upsilon(1S)](pp), is found to be 0.31(-0.15)(+0.19) (stat_ +/- 0.03(syst). The probability to obtain the measured value, or lower, if the true double ratio is unity, is calculated to be less than 1%. | en |
dc.relation | Marie-Curie programme, European Research Council (European Union), Leventis Foundation, A.P. Sloan Foundation, Alexander von Humboldt Foundation, Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy), Belgian Federal Science Policy Office, Fonds pour la Formation a la Recherche dans lindustrie et dans lAgriculture (FRIA-Belgium), Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium) | |
dc.rights | openAccess | en |
dc.source | Physical Review Letters | en |
dc.title | Indications of Suppression of Excited Upsilon States in Pb-Pb Collisions at root(NN)-N-s=2.76 TeV | en |
dc.type | article | en |
dcterms.abstract | Ђорђевић Милош; Милошевић Јован; Миленовић Предраг; Цхатрцхyан, С.; Aдзиц, П.; Крпиц, Д.; Рековиц, В.; | |
dc.citation.volume | 107 | |
dc.citation.issue | 5 | |
dc.identifier.wos | 000293250300006 | |
dc.identifier.doi | 10.1103/PhysRevLett.107.052302 | |
dc.citation.other | Article Number: 052302 | |
dc.citation.rank | M21a | |
dc.identifier.pmid | 21867063 | |
dc.contributor.count | CMS Collaboration (ukupan broj autora: 2206) | |
dc.identifier.scopus | 2-s2.0-79961108516 | |
dc.identifier.fulltext | https://vinar.vin.bg.ac.rs//bitstream/id/12827/4430.pdf |