Measurement of the fraction of Υ(1S) originating from χb(1P) decays in pp collisions at s√=7 TeV

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dc.contributor.authorAbellan Beteta, Carlos
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorCamboni, Alessandro
dc.contributor.authorComerma Montells, Albert
dc.contributor.authorDomingo Bonal, Francesc
dc.contributor.authorGarrido Beltrán, Lluís
dc.contributor.authorGascón Fora, David
dc.contributor.authorGrabalosa Gándara, Marc
dc.contributor.authorGraciani Díaz, Ricardo
dc.contributor.authorGraugés Pous, Eugeni
dc.contributor.authorLópez Asamar, Elias
dc.contributor.authorPérez-Calero Yzquierdo, Antonio
dc.contributor.authorPicatoste Olloqui, Eduardo
dc.contributor.authorPie Valls, B. (Blai)
dc.contributor.authorPotterat, Cédric
dc.contributor.authorPuig Navarro, Albert
dc.contributor.authorRoselló, M.
dc.contributor.authorRuiz, Hugo (Ruiz Pérez)
dc.contributor.authorVázquez Gómez, Ricard
dc.contributor.authorVilasis-Cardona, Xavier
dc.contributor.authorLHCb Collaboration
dc.date.accessioned2014-10-17T10:30:19Z
dc.date.available2014-10-17T10:30:19Z
dc.date.issued2012-09
dc.date.updated2014-10-17T10:30:19Z
dc.description.abstractThe production of χb(1P ) mesons in pp collisions at a centre-of-mass energy of 7 TeV is studied using 32 pb−1 of data collected with the LHCb detector. The χb(1P ) mesons are reconstructed in the decay mode χ b (1P ) → Υ (1S)γ → μ + μ −γ. The fraction of Υ (1S) originating from χb(1P ) decays in the Υ (1S) transverse momentum range 6 < pT Υ (1S) < 15 GeV/c and rapidity range 2.0 < y Υ (1S) < 4.5 is measured to be (20.7±5.7±2.1+2.7−5.4)% , where the first uncertainty is statistical, the second is systematic and the last gives the range of the result due to the unknown Υ (1S) and χb(1P) polarizations.
dc.format.extent15 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec619636
dc.identifier.issn1126-6708
dc.identifier.urihttps://hdl.handle.net/2445/58753
dc.language.isoeng
dc.publisherSpringer Verlag
dc.relation.isformatofReproducció del document publicat a: http://dx.doi.org/10.1007/JHEP11(2012)031
dc.relation.ispartofJournal of High Energy Physics, 2012, vol. 2012, num. 11, p. 31
dc.relation.urihttp://dx.doi.org/10.1007/JHEP11(2012)031
dc.rightscc by (c) LHCb Collaboration, 2012
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject.classificationHadrons
dc.subject.classificationGran Col·lisionador d'Hadrons
dc.subject.classificationTeoria quàntica
dc.subject.classificationGravitació
dc.subject.classificationTeoria quàntica de camps
dc.subject.otherHadrons
dc.subject.otherLarge Hadron Collider (France and Switzerland)
dc.subject.otherQuantum theory
dc.subject.otherGravitation
dc.subject.otherQuantum field theory
dc.titleMeasurement of the fraction of Υ(1S) originating from χb(1P) decays in pp collisions at s√=7 TeV
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion

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