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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.authorRodríguez Pérez, Pablo
dc.contributor.authorRomero Vidal, Antonio
dc.contributor.authorVázquez Regueiro, Pablo
dc.contributor.authorVázquez Sierra, Carlos
dc.date.accessioned2020-05-04T11:11:32Z
dc.date.available2020-05-04T11:11:32Z
dc.date.issued2014
dc.identifier.citationAaij, R., Adeva, B., Adinolfi, M. et al. First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − . J. High Energ. Phys. 2014, 64 (2014). https://doi.org/10.1007/JHEP10(2014)064
dc.identifier.issn1029-8479
dc.identifier.urihttp://hdl.handle.net/10347/21987
dc.description.abstractFirst observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK +μ+μ− are presented using data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The branching fractions of the decays are B(B+→K+π+π−μ+μ−)=(4.36−0.29−0.27(stat)±0.21 (syst)±0.18(norm))×10−7,B(B+→ϕK+μ+μ−)=(0.82−0.19−0.17(stat)−0.10−0.04(syst)±0.27(norm))×10−7, where the uncertainties are statistical, systematic, and due to the uncertainty on the branching fractions of the normalisation modes. A measurement of the differential branching fraction in bins of the invariant mass squared of the dimuon system is also presented for the decay B + → K + π + π − μ + μ −.
dc.language.isoeng
dc.publisherSpringer
dc.rights© CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.subjectRare decay
dc.subjectHadron-Hadron Scattering
dc.subjectB physics
dc.subjectFlavor physics
dc.titleFirst observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ −
dc.typejournal article
dc.identifier.doi10.1007/JHEP10(2014)064
dc.relation.publisherversionhttps://doi.org/10.1007/JHEP10(2014)064
dc.type.hasVersionVoR
dc.rights.accessRightsopen access
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Física de Partículas
dc.contributor.affiliationUniversidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
dc.description.peerreviewedSI


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© CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made
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 © CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made





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