Angular analysis of B0 → K*0e+e− decays
Journal of High Energy Physics, vol. 2025
Abstract
A bstract An angular analysis of B 0 → K *0 e + e − decays is presented using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb − 1 . The analysis is performed in the region of the dilepton invariant mass squared of 1.1–6.0 GeV 2 / c 4 . In addition, a test of lepton flavour universality is performed by comparing the obtained angular observables with those measured in B 0 → K *0 μ + μ − decays. In general, the angular observables are found to be consistent with the Standard Model expectations as well as with global analyses of other b → sℓ + ℓ − processes, where ℓ is either a muon or an electron. No sign of lepton-flavour-violating effects is observed.
Authors 25
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Affiliation as printed
University of Warwick
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Affiliation as printed
Physik-Institut, Universität Zürich
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Affiliation as printed
University of Liverpool
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Affiliation as printed
Syracuse University
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Universidade de Santiago de Compostela
Affiliation as printed
Universidade de Santiago de Compostela
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Affiliation as printed
University of Bristol
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Centre National de la Recherche Scientifique · Université Paris-Saclay · Institut National de Physique Nucléaire et de Physique des Particules · Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
Affiliation as printed
Université Paris-Saclay, CNRS/IN2P3, IJCLab
IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (Bât. 100 et 200, 15 rue Georges Clémenceau 91405 Orsay - France)
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Affiliation as printed
University of Michigan
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Affiliation as printed
University of Cincinnati
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TU Dortmund University · Lamarr Institute for Machine Learning and Artificial Intelligence
Affiliation as printed
Lamarr Institute for Machine Learning and Artificial Intelligence
Technische Universität Dortmund
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European Organization for Nuclear Research
Affiliation as printed
European Organization for Nuclear Research (CERN)
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Centre National de la Recherche Scientifique · Sorbonne Université · Laboratoire de Physique Nucléaire et de Hautes Énergies · Institut National de Physique Nucléaire et de Physique des Particules
Affiliation as printed
LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3
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Universidade Federal do Rio de Janeiro · Laboratoire de Physique Nucléaire et de Hautes Énergies
Affiliation as printed
Universidade Federal do Rio de Janeiro (UFRJ)
LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies (Barre 12-22, 1er étage 4 Place Jussieu 75252 Paris Cedex 05 - France)
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Consejo Nacional de Rectores · European Organization for Nuclear Research
Affiliation as printed
Consejo Nacional de Rectores (CONARE)
European Organization for Nuclear Research (CERN)
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Laboratoire de Physique des 2 Infinis Irène Joliot-Curie · École Polytechnique Fédérale de Lausanne
Affiliation as printed
Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL)
IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (Bât. 100 et 200, 15 rue Georges Clémenceau 91405 Orsay - France)
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Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
Affiliation as printed
INFN Sezione di Roma La Sapienza
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Centre de physique des particules de Marseille · Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
Affiliation as printed
INFN Laboratori Nazionali di Frascati
CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)
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Centre National de la Recherche Scientifique · Sorbonne Université · Laboratoire de Physique Nucléaire et de Hautes Énergies · Institut National de Physique Nucléaire et de Physique des Particules
Affiliation as printed
LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3
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Laboratoire de Physique Nucléaire et de Hautes Énergies
Affiliation as printed
LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies (Barre 12-22, 1er étage 4 Place Jussieu 75252 Paris Cedex 05 - France)
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Centre National de la Recherche Scientifique · Sorbonne Université · Laboratoire de Physique Nucléaire et de Hautes Énergies · Institut National de Physique Nucléaire et de Physique des Particules
Affiliation as printed
LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3
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National Institute for Subatomic Physics · Laboratoire de Physique Nucléaire et de Hautes Énergies
Affiliation as printed
Nikhef National Institute for Subatomic Physics
LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies (Barre 12-22, 1er étage 4 Place Jussieu 75252 Paris Cedex 05 - France)
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Affiliation as printed
Imperial College London
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Centre National de la Recherche Scientifique · Laboratoire d’Annecy de Physique des Particules · Institut National de Physique Nucléaire et de Physique des Particules · Université Savoie Mont Blanc
Affiliation as printed
Université Savoie Mont Blanc, CNRS, IN2P3-LAPP
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University of Modena and Reggio Emilia · Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Affiliation as printed
INFN Sezione di Firenze
Università di Modena e Reggio Emilia
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