Precision Measurement of CP Violation in the Penguin-Mediated Decay B_{s}^{0}→ϕϕ
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
- 2 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 3 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 4 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 5 Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- 6 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 7 Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden (associated with School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom).
- 8 Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 9 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 10 University of Michigan, Ann Arbor, Michigan, USA (associated with Syracuse University, Syracuse, New York, USA).
- 11 University of Cincinnati, Cincinnati, Ohio, USA.
- 12 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 13 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 14 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 15 ICCUB, Universitat de Barcelona, Barcelona, Spain.
- 16 Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 17 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 18 LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
- 19 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 20 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
- 21 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 22 INFN Sezione di Firenze, Firenze, Italy.
- 23 Affiliated with an institute covered by a cooperation agreement with CERN.
- 24 INFN Sezione di Ferrara, Ferrara, Italy.
- 25 Syracuse University, Syracuse, New York, USA.
- 26 University of Chinese Academy of Sciences, Beijing, China.
- 27 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 28 Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
- 29 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 30 Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 31 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 32 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 33 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 34 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 35 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 36 INFN Sezione di Pisa, Pisa, Italy.
- 37 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 38 Institute Of High Energy Physics (IHEP), Beijing, China.
- 39 DS4DS, La Salle, Universitat Ramon Llull, Barcelona, Spain.
- 40 Università degli Studi di Padova, Università e INFN, Padova, Padova, Italy.
- 41 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 42 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 43 Imperial College London, London, United Kingdom.
- 44 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 45 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 46 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 47 School of Physics, University College Dublin, Dublin, Ireland.
- 48 INFN Sezione di Bari, Bari, Italy.
- 49 INFN Sezione di Bologna, Bologna, Italy.
- 50 INFN Sezione di Genova, Genova, Italy.
- 51 INFN Sezione di Milano, Milano, Italy.
- 52 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 53 INFN Sezione di Cagliari, Monserrato, Italy.
- 54 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 55 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 56 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 57 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 58 Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia-CSIC, Valencia, Spain.
- 59 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 60 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 61 University of Birmingham, Birmingham, United Kingdom.
- 62 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 63 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 64 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 65 University of Maryland, College Park, Maryland, USA.
- 66 Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, USA.
- 67 School of Physics and Astronomy, Monash University, Melbourne, Australia (associated with Department of Physics, University of Warwick, Coventry, United Kingdom).
- 68 Pontifícia 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).
- 69 Physics and Micro Electronic College, Hunan University, Changsha City, China (associated with Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China).
- 70 Guangdong Provincial Key Laboratory of Nuclear Science, Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Institute of Quantum Matter, South China Normal University, Guangzhou, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 71 Lanzhou University, Lanzhou, China (associated with Institute Of High Energy Physics (IHEP), Beijing, China).
- 72 Departamento de Fisica, Universidad Nacional de Colombia, Bogota, Colombia (associated with LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France).
- 73 Universität Bonn-Helmholtz-Institut für Strahlen und Kernphysik, Bonn, Germany (associated with Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 74 Eotvos Lorand University, Budapest, Hungary (associated with European Organization for Nuclear Research (CERN), Geneva, Switzerland).
- 75 INFN Sezione di Perugia, Perugia, Italy (associated with INFN Sezione di Ferrara, Ferrara, Italy).
- 76 Van Swinderen Institute, University of Groningen, Groningen, Netherlands (associated with Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 77 Universiteit Maastricht, Maastricht, Netherlands (associated with Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 78 Faculty of Material Engineering and Physics, Cracow, Poland (associated with Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland).
- PMID: 37955501
- DOI: 10.1103/PhysRevLett.131.171802
Precision Measurement of CP Violation in the Penguin-Mediated Decay B_{s}^{0}→ϕϕ
Authors
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
- 2 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 3 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 4 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 5 Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- 6 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 7 Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden (associated with School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom).
- 8 Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 9 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 10 University of Michigan, Ann Arbor, Michigan, USA (associated with Syracuse University, Syracuse, New York, USA).
- 11 University of Cincinnati, Cincinnati, Ohio, USA.
- 12 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 13 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 14 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 15 ICCUB, Universitat de Barcelona, Barcelona, Spain.
- 16 Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 17 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 18 LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
- 19 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 20 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
- 21 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 22 INFN Sezione di Firenze, Firenze, Italy.
- 23 Affiliated with an institute covered by a cooperation agreement with CERN.
- 24 INFN Sezione di Ferrara, Ferrara, Italy.
- 25 Syracuse University, Syracuse, New York, USA.
- 26 University of Chinese Academy of Sciences, Beijing, China.
- 27 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 28 Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
- 29 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 30 Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 31 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 32 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 33 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 34 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 35 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 36 INFN Sezione di Pisa, Pisa, Italy.
- 37 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 38 Institute Of High Energy Physics (IHEP), Beijing, China.
- 39 DS4DS, La Salle, Universitat Ramon Llull, Barcelona, Spain.
- 40 Università degli Studi di Padova, Università e INFN, Padova, Padova, Italy.
- 41 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 42 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 43 Imperial College London, London, United Kingdom.
- 44 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 45 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 46 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 47 School of Physics, University College Dublin, Dublin, Ireland.
- 48 INFN Sezione di Bari, Bari, Italy.
- 49 INFN Sezione di Bologna, Bologna, Italy.
- 50 INFN Sezione di Genova, Genova, Italy.
- 51 INFN Sezione di Milano, Milano, Italy.
- 52 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 53 INFN Sezione di Cagliari, Monserrato, Italy.
- 54 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 55 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 56 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 57 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 58 Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia-CSIC, Valencia, Spain.
- 59 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 60 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 61 University of Birmingham, Birmingham, United Kingdom.
- 62 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 63 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 64 Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
- 65 University of Maryland, College Park, Maryland, USA.
- 66 Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, USA.
- 67 School of Physics and Astronomy, Monash University, Melbourne, Australia (associated with Department of Physics, University of Warwick, Coventry, United Kingdom).
- 68 Pontifícia 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).
- 69 Physics and Micro Electronic College, Hunan University, Changsha City, China (associated with Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China).
- 70 Guangdong Provincial Key Laboratory of Nuclear Science, Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Institute of Quantum Matter, South China Normal University, Guangzhou, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 71 Lanzhou University, Lanzhou, China (associated with Institute Of High Energy Physics (IHEP), Beijing, China).
- 72 Departamento de Fisica, Universidad Nacional de Colombia, Bogota, Colombia (associated with LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France).
- 73 Universität Bonn-Helmholtz-Institut für Strahlen und Kernphysik, Bonn, Germany (associated with Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 74 Eotvos Lorand University, Budapest, Hungary (associated with European Organization for Nuclear Research (CERN), Geneva, Switzerland).
- 75 INFN Sezione di Perugia, Perugia, Italy (associated with INFN Sezione di Ferrara, Ferrara, Italy).
- 76 Van Swinderen Institute, University of Groningen, Groningen, Netherlands (associated with Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 77 Universiteit Maastricht, Maastricht, Netherlands (associated with Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands).
- 78 Faculty of Material Engineering and Physics, Cracow, Poland (associated with Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland).
- PMID: 37955501
- DOI: 10.1103/PhysRevLett.131.171802
Abstract
A flavor-tagged time-dependent angular analysis of the decay B_{s}^{0}→ϕϕ is performed using pp collision data collected by the LHCb experiment at the center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb^{-1}. The CP-violating phase and direct CP-violation parameter are measured to be ϕ_{s}^{ss[over ¯]s}=-0.042±0.075±0.009 rad and |λ|=1.004±0.030±0.009, respectively, assuming the same values for all polarization states of the ϕϕ system. In these results, the first uncertainties are statistical and the second systematic. These parameters are also determined separately for each polarization state, showing no evidence for polarization dependence. The results are combined with previous LHCb measurements using pp collisions at center-of-mass energies of 7 and 8 TeV, yielding ϕ_{s}^{ss[over ¯]s}=-0.074±0.069 rad and |λ|=1.009±0.030. This is the most precise study of time-dependent CP violation in a penguin-dominated B meson decay. The results are consistent with CP symmetry and with the standard model predictions.