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dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorBadalov, Alexey
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorVilasís Cardona, Xavier
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2020-11-20T15:41:56Z
dc.date.accessioned2023-10-02T06:25:54Z
dc.date.available2020-11-20T15:41:56Z
dc.date.available2023-10-02T06:25:54Z
dc.date.created2014
dc.date.issued2014-10-14
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3105
dc.description.abstractThe production of χ b mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of s√ =7 and 8 TeV and corresponding to an integrated luminosity of 3.0 fb−1. The χ b mesons are identified through their decays to ϒ(1S)γ and ϒ(2S)γ using photons that converted to e + e − pairs in the detector. The relative prompt production rate of χ b1(1P) and χ b2(1P) mesons is measured as a function of the ϒ(1S) transverse momentum in the χ b rapidity range 2.0 < y <4.5. A precise measurement of the χ b (3P) mass is also performed. Assuming a mass splitting between the χ b1(3P) and the χ b2(3P) states of 10.5 MeV/c2, the measured mass of the χ b1(3P) meson is m(χb1(3P))=10515.7+2.2−3.9(stat)+1.5−2.1(syst)MeV/c2.eng
dc.format.extent22 p.cat
dc.language.isoengcat
dc.publisherSpringercat
dc.relation.ispartofJournal of High Energy Physics, 2014, Vol. 2014, No.10 (Octubre)cat
dc.rights© CERN
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherGran col·lisionador d'hadrons (França i Suïssa)cat
dc.subject.otherPartícules (Física nuclear)cat
dc.subject.otherCol·lisions (Física nuclear)cat
dc.subject.otherProtonscat
dc.subject.otherMesonscat
dc.titleMeasurement of the χ b (3P) mass and of the relative rate of χ b1(1P) and χ b2(1P) productioncat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc539
dc.identifier.doihttps://doi.org/10.1007/JHEP10(2014)088cat


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