Angular analysis of charged and neutral B → Kμ + μ − decays
R. AaijNikhef National Institute for Subatomic Physics, Amsterdam, The NetherlandsB. AdevaUniversidad de Santiago de Compostela, Santiago de Compostela, SpainM. AdinolfiH.H. Wills Physics Laboratory, University of Bristol, Bristol, United KingdomTony AffolderOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomZ. AjaltouniUniversité Clermont AuvergneJ. AlbrechtFakultät Physik, Technische Universität Dortmund, Dortmund, GermanyF. AlessioEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandM. AlexanderSchool of Physics and Astronomy, University of Glasgow, Glasgow, United KingdomS. AliNikhef National Institute for Subatomic Physics, Amsterdam, The NetherlandsG. AlkhazovPetersburg Nuclear Physics Institute (PNPI), Gatchina, RussiaP. Álvarez CartelleUniversidad de Santiago de Compostela, Santiago de Compostela, SpainA. A. AlvesSezione INFN di Roma La Sapienza, Roma, ItalyS. AmatoUniversidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, BrazilS. AmerioSezione INFN di Padova, Padova, ItalyY. AmhisCentre National de la Recherche ScientifiqueL. AnUniversidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, BrazilJ. AndersonPhysik-Institut, Universität Zürich, Zürich, SwitzerlandR. AndreassenUniversity of Cincinnati, Cincinnati, OH, United StatesM. AndreottiSezione INFN di Ferrara, Ferrara, ItalyJ. E. AndrewsUniversity of Maryland, College Park, MD, United StatesR. B. ApplebySchool of Physics and Astronomy, University of Manchester, Manchester, United KingdomO. Aquines GutierrezMax-Planck-Institut für Kernphysik (MPIK), Heidelberg, GermanyF. ArchilliEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandA. ArtamonovInstitute for High Energy Physics (IHEP), Protvino, RussiaM. ArtusoSyracuse University, Syracuse, NY, United StatesE. AslanidesAix-Marseille UniversitéG. AuriemmaSezione INFN di Roma La Sapienza, Roma, ItalyM. BaalouchClermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, FranceS. BachmannPhysikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyJ. J. BackDepartment of Physics, University of Warwick, Coventry, United KingdomA. BadalovUniversitat de Barcelona, Barcelona, SpainV. BalaguraInstitute of Theoretical and Experimental Physics (ITEP), Moscow, RussiaW. BaldiniSezione INFN di Ferrara, Ferrara, ItalyR. J. BarlowSchool of Physics and Astronomy, University of Manchester, Manchester, United KingdomC. BarschelEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandS. BarsukLAL, Université Paris-Sud, CNRS/IN2P3, Orsay, FranceW. BarterCavendish Laboratory, University of Cambridge, Cambridge, United KingdomV. BatozskayaNational Center for Nuclear Research (NCBJ), Warsaw, PolandTh. BauerNikhef National Institute for Subatomic Physics, Amsterdam, The NetherlandsA. BayEcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandJ. BeddowSchool of Physics and Astronomy, University of Glasgow, Glasgow, United KingdomF. BedeschiSezione INFN di Pisa, Pisa, ItalyI. BediagaCentro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, BrazilS. BelogurovInstitute of Theoretical and Experimental Physics (ITEP), Moscow, RussiaK. BelousInstitute for High Energy Physics (IHEP), Protvino, RussiaI. BelyaevInstitute of Theoretical and Experimental Physics (ITEP), Moscow, RussiaE. Ben-HaimUniversité Paris CitéG. BencivenniLaboratori Nazionali dell'INFN di Frascati, Frascati, ItalyS. BensonSchool of Physics and Astronomy, University of Edinburgh, Edinburgh, United KingdomJ. BentonH.H. Wills Physics Laboratory, University of Bristol, Bristol, United KingdomA. BerezhnoyInstitute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, RussiaR. BernetPhysik-Institut, Universität Zürich, Zürich, SwitzerlandM.-O. BettlerCavendish Laboratory, University of Cambridge, Cambridge, United KingdomM. van BeuzekomNikhef National Institute for Subatomic Physics, Amsterdam, The NetherlandsA. BieńPhysikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyS. BifaniUniversity of Birmingham, Birmingham, United KingdomT. BirdSchool of Physics and Astronomy, University of Manchester, Manchester, United KingdomA. BizzetiSezione INFN di Firenze, Firenze, ItalyP. M. BjørnstadSchool of Physics and Astronomy, University of Manchester, Manchester, United KingdomT. BlakeDepartment of Physics, University of Warwick, Coventry, United KingdomF. BlancEcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandJ. BlouwMax-Planck-Institut für Kernphysik (MPIK), Heidelberg, GermanyS. BluskSyracuse University, Syracuse, NY, United StatesV. BocciSezione INFN di Roma La Sapienza, Roma, ItalyA. BondarPetersburg Nuclear Physics Institute (PNPI), Gatchina, RussiaN. BondarPetersburg Nuclear Physics Institute (PNPI), Gatchina, RussiaW. BoniventoSezione INFN di Cagliari, Cagliari, ItalyS. BorghiSchool of Physics and Astronomy, University of Manchester, Manchester, United KingdomA. BorgiaSyracuse University, Syracuse, NY, United StatesM. BorsatoCentre National de la Recherche ScientifiqueT. J. V. BowcockOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomE. BowenPhysik-Institut, Universität Zürich, Zürich, SwitzerlandC. BozziSezione INFN di Ferrara, Ferrara, ItalyT. BrambachFakultät Physik, Technische Universität Dortmund, Dortmund, GermanyJ. F. J. van den BrandNikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The NetherlandsJ. BressieuxEcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandD. BrettSchool of Physics and Astronomy, University of Manchester, Manchester, United KingdomM. BritschMax-Planck-Institut für Kernphysik (MPIK), Heidelberg, GermanyT. BrittonSyracuse University, Syracuse, NY, United StatesN. H. BrookH.H. Wills Physics Laboratory, University of Bristol, Bristol, United KingdomH. BrownOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomA. BurschePhysik-Institut, Universität Zürich, Zürich, SwitzerlandG. BusettoSezione INFN di Padova, Padova, ItalyJ. BuytaertEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandS. CadedduSezione INFN di Cagliari, Cagliari, ItalyR. CalabreseSezione INFN di Ferrara, Ferrara, ItalyO. CallotLAL, Université Paris-Sud, CNRS/IN2P3, Orsay, FranceM. CalviSezione INFN di Milano Bicocca, Milano, ItalyM. Calvo GomezUniversitat de Barcelona, Barcelona, SpainA. CamboniUniversitat de Barcelona, Barcelona, SpainP. CampanaLaboratori Nazionali dell'INFN di Frascati, Frascati, ItalyD. H. Cámpora PérezEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandA. CarboneSezione INFN di Bologna, Bologna, ItalyG. CarboniSezione INFN di Roma Tor Vergata, Roma, ItalyR. CardinaleSezione INFN di Genova, Genova, ItalyA. CardiniSezione INFN di Cagliari, Cagliari, ItalyH. Carranza-MejiaSchool of Physics and Astronomy, University of Edinburgh, Edinburgh, United KingdomL. CarsonSchool of Physics and Astronomy, University of Edinburgh, Edinburgh, United KingdomK. Carvalho AkibaUniversidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
2014en
ABI
Annotatsiya
The angular distributions of the rare decays B + K + + -and B 0 K 0 S + -are studied with data corresponding to 3 fb -1 of integrated luminosity, collected in proton-proton collisions at 7 and 8 TeV centre-of-mass energies with the LHCb detector. The angular distribution is described by two parameters, F H and the forward-backward asymmetry of the dimuon system A FB , which are determined in bins of the dimuon mass squared. The parameter F H is a measure of the contribution from (pseudo)scalar and tensor amplitudes to the decay width. The measurements of A FB and F H reported here are the most precise to date and are compatible with predictions from the Standard Model.
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