Amplitude Analysis of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>*</mml:mo><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> Decay
R. AaijNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsA. S. W. AbdelmottelebDepartment of Physics, University of Warwick, Coventry, United KingdomC. Abellán BetetaPhysik-Institut, Universität Zürich, Zürich, SwitzerlandT. AckernleyOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomB. AdevaInstituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, SpainM. AdinolfiH.H. Wills Physics Laboratory, University of Bristol, Bristol, United KingdomP. AdlarsonDepartment of Physics and Astronomy, Uppsala University, Uppsala, Sweden (associated with School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom)C. AgapopoulouEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandC. AidalaUniversity of Michigan, Ann Arbor, Michigan, USA (associated with Syracuse University, Syracuse, New York, USA)Z. AjaltouniUniversité Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, FranceS. AkarUniversity of Cincinnati, Cincinnati, Ohio, USAK. Carvalho AkibaNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsP. AlbicoccoINFN Laboratori Nazionali di Frascati, Frascati, ItalyJ. 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 KingdomA. Alfonso AlberoICCUB, Universitat de Barcelona, Barcelona, SpainZakariya AlioucheDepartment of Physics and Astronomy, University of Manchester, Manchester, United KingdomP. Álvarez CartelleCavendish Laboratory, University of Cambridge, Cambridge, United KingdomR. AmalricLPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, FranceS. AmatoUniversidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, BrazilS. AmatoH.H. Wills Physics Laboratory, University of Bristol, Bristol, United KingdomY. AmhisEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandL. AnSchool of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, ChinaL. AnINFN Sezione di Firenze, Firenze, ItalyM. AnderssonPhysik-Institut, Universität Zürich, Zürich, SwitzerlandA. AndreianovAffiliated with an institute covered by a cooperation agreement with CERNP. AndreolaPhysik-Institut, Universität Zürich, Zürich, SwitzerlandM. AndreottiINFN Sezione di Ferrara, Ferrara, ItalyD. AndreouSyracuse University, Syracuse, New York, USAAlessia AnelliINFN Sezione di Milano-Bicocca, Milano, ItalyD. AoUniversity of Chinese Academy of Sciences, Beijing, ChinaF. ArchilliINFN Sezione di Roma Tor Vergata, Roma, ItalyMatteo ArgentonINFN Sezione di Ferrara, Ferrara, ItalyS. Arguedas CuendisConsejo Nacional de Rectores (CONARE), San Jose, Costa RicaA. ArtamonovAffiliated with an institute covered by a cooperation agreement with CERNM. ArtusoSyracuse University, Syracuse, New York, USAE. AslanidesAix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, FranceM. AtzeniMassachusetts Institute of Technology, Cambridge, Massachusetts, USAB. AudurierLaboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, FranceD. BacherDepartment of Physics, University of Oxford, Oxford, United KingdomI. BachillerUniversité Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, FranceS. BachmannPhysikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyMarie BachmayerInstitute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandJ. J. BackDepartment of Physics, University of Warwick, Coventry, United KingdomA. Bailly-reyreLPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, FranceP. Baladrón RodríguezInstituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, SpainV. BalaguraLaboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, FranceW. BaldiniINFN Sezione di Ferrara, Ferrara, ItalyJ. Baptista de Souza LeiteCentro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, BrazilM. BarbettiINFN Sezione di Firenze, Firenze, ItalyI. R. BarbosaPontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil (associated with Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil)R. J. BarlowDepartment of Physics and Astronomy, University of Manchester, Manchester, United KingdomS. BarsukUniversité Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, FranceW. BarterSchool of Physics and Astronomy, University of Edinburgh, Edinburgh, United KingdomM. BartoliniCavendish Laboratory, University of Cambridge, Cambridge, United KingdomF. BaryshnikovAffiliated with an institute covered by a cooperation agreement with CERNJ. M. BaselsI. Physikalisches Institut, RWTH Aachen University, Aachen, GermanyG. BassiINFN Sezione di Pisa, Pisa, ItalyB. BatsukhInstitute Of High Energy Physics (IHEP), Beijing, ChinaA. BattigFakultät Physik, Technische Universität Dortmund, Dortmund, GermanyA. BayInstitute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandA. BeckDepartment of Physics, University of Warwick, Coventry, United KingdomM. BeckerFakultät Physik, Technische Universität Dortmund, Dortmund, GermanyF. BedeschiINFN Sezione di Pisa, Pisa, ItalyI. BediagaCentro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, BrazilA. BeiterSyracuse University, Syracuse, New York, USAV. BelléePhysik-Institut, Universität Zürich, Zürich, SwitzerlandK. BelousAffiliated with an institute covered by a cooperation agreement with CERNI. BelovINFN Sezione di Genova, Genova, ItalyI. BelyaevAffiliated with an institute covered by a cooperation agreement with CERNG. BenaneAix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, FranceG. BencivenniINFN Laboratori Nazionali di Frascati, Frascati, ItalyE. Ben-HaimLPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, FranceA. BerezhnoyAffiliated with an institute covered by a cooperation agreement with CERNR. BernetPhysik-Institut, Universität Zürich, Zürich, SwitzerlandH. C. BernsteinDS4DS, La Salle, Universitat Ramon Llull, Barcelona, SpainC. BertellaDepartment of Physics and Astronomy, University of Manchester, Manchester, United KingdomA. BertolinUniversità degli Studi di Padova, Università e INFN, Padova, Padova, ItalyC. BetancourtPhysik-Institut, Universität Zürich, Zürich, SwitzerlandF. BettiSchool of Physics and Astronomy, University of Edinburgh, Edinburgh, United KingdomJ. BexCavendish Laboratory, University of Cambridge, Cambridge, United KingdomIa. BezshyikoPhysik-Institut, Universität Zürich, Zürich, SwitzerlandJ. BhomHenryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, PolandM. S. BiekerFakultät Physik, Technische Universität Dortmund, Dortmund, GermanyN. V. BiesuzINFN Sezione di Ferrara, Ferrara, ItalyP. BilloirDélégation Paris 7A. BiolchiniNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsM. BirchImperial College London, London, United KingdomF. C. R. BishopUniversité Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, FranceA. BitadzeDepartment of Physics and Astronomy, University of Manchester, Manchester, United KingdomA. BizzetiLanzhou UniversityMichele Piero BlagoCavendish Laboratory, University of Cambridge, Cambridge, United KingdomT. BlakeDepartment of Physics, University of Warwick, Coventry, United KingdomF. BlancInstitute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandJ. E. BlankFakultät Physik, Technische Universität Dortmund, Dortmund, GermanyS. BluskSyracuse University, Syracuse, New York, USA
2024lv
ABI
Annotatsiya
An amplitude analysis of the B^{0}→K^{*0}μ^{+}μ^{-} decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb^{-1} of pp collision data collected with the LHCb experiment. For the first time, the coefficients associated to short-distance physics effects, sensitive to processes beyond the standard model, are extracted directly from the data through a q^{2}-unbinned amplitude analysis, where q^{2} is the μ^{+}μ^{-} invariant mass squared. Long-distance contributions, which originate from nonfactorizable QCD processes, are systematically investigated, and the most accurate assessment to date of their impact on the physical observables is obtained. The pattern of measured corrections to the short-distance couplings is found to be consistent with previous analyses of b- to s-quark transitions, with the largest discrepancy from the standard model predictions found to be at the level of 1.8 standard deviations. The global significance of the observed differences in the decay is 1.4 standard deviations.
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