Study of χb meson production in p p collisions at √s=7 and 8TeV and observation of the decay χb(3P)→Υ(3S)γ

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dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Física de Partículasgl
dc.contributor.affiliationUniversidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)gl
dc.contributor.authorLHCb Collaboration
dc.contributor.authorAdeva Andany, Bernardo
dc.contributor.authorÁlvarez Cartelle, Paula
dc.contributor.authorDosil Suárez, Álvaro
dc.contributor.authorFernández Albor, Víctor Manuel
dc.contributor.authorGallas Torreira, Abraham Antonio
dc.contributor.authorGarcía Pardiñas, Julián
dc.contributor.authorHernando Morata, José Ángel
dc.contributor.authorPazos Álvarez, Antonio
dc.contributor.authorPérez Trigo, Eliseo
dc.contributor.authorPlo Casasus, Máximo
dc.contributor.authorRomero Vidal, Antonio
dc.contributor.authorSaborido Silva, Juan José
dc.contributor.authorSanmartín Sedes, Brais
dc.contributor.authorSantamarina Ríos, Cibrán
dc.contributor.authorSeco Miguélez, Marcos Antonio
dc.contributor.authorVázquez Regueiro, Pablo
dc.contributor.authorVázquez Sierra, Carlos
dc.contributor.authorVieites Díaz, María
dc.date.accessioned2020-04-22T07:59:27Z
dc.date.available2020-04-22T07:59:27Z
dc.date.issued2014
dc.description.abstractA study of χb meson production at LHCb is performed on proton–proton collision data, corresponding to 3.0 fb−1of integrated luminosity collected at centre-of-mass energies √s= 7 and 8 TeV. The fraction of Υ(nS) mesons originating from χb decays is measured as a function of the Υ transverse momentum in the rapidity range 2.0<yΥ<4.5. The radiative transition of the χb(3P) meson to Υ(3S) is observed for the first time. The χb1(3P) mass is determined to be mχb1(3P)=10511.3±1.7±2.5MeV/c2, where the first uncertainty is statistical and the second is systematic.gl
dc.description.peerreviewedSIgl
dc.description.sponsorshipWe acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ and FINEP (Brazil); NSFC (China); CNRS/IN2P3 (France); BMBF, DFG, HGF and MPG (Germany); SFI (Ireland); INFN (Italy); FOM and NWO (The Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MinES and FANO (Russia); MinECo (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); NSF (USA). The Tier1 computing centres are supported by IN2P3 (France), KIT and BMBF (Germany), INFN (Italy), NWO and SURF (The Netherlands), PIC (Spain), GridPP (United Kingdom). We are indebted to the communities behind the multiple open source software packages on which we depend. We are also thankful for the computing resources and the access to software R&D tools provided by Yandex LLC (Russia). Individual groups or members have received support from EPLANET, Marie Skłodowska-Curie Actions and ERC (European Union), Conseil général de Haute-Savoie, Labex ENIGMASS and OCEVU, Région Auvergne (France), RFBR (Russia), XuntaGal and GENCAT (Spain), Royal Society and Royal Commission for the Exhibition of 1851 (United Kingdom)gl
dc.identifier.citationAaij, R., Adeva, B., Adinolfi, M. et al. Study of χb meson production in p p collisions at √s=7 and 8TeV and observation of the decay χb(3P)→Υ(3S)γ . Eur. Phys. J. C 74, 3092 (2014). https://doi.org/10.1140/epjc/s10052-014-3092-zgl
dc.identifier.doi10.1140/epjc/s10052-014-3092-z
dc.identifier.essn1434-6052
dc.identifier.issn1434-6044
dc.identifier.urihttp://hdl.handle.net/10347/21621
dc.language.isoenggl
dc.publisherSpringergl
dc.relation.publisherversionhttps://doi.org/10.1140/epjc/s10052-014-3092-zgl
dc.rights© CERN for the benefit of the LHCb collaboration 2014. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0gl
dc.rights.accessRightsopen accessgl
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleStudy of χb meson production in p p collisions at √s=7 and 8TeV and observation of the decay χb(3P)→Υ(3S)γgl
dc.typejournal articlegl
dc.type.hasVersionVoRgl
dspace.entity.typePublication
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