Measurement of the Branching Fractions B(B^{0}→pp[over ¯]pp[over ¯]) and B(B_{s}^{0}→pp[over ¯]pp[over ¯])
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 LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
- 10 University of Michigan, Ann Arbor, MI, United States (associated with Syracuse University, Syracuse, 48109 NY, United States).
- 11 University of Cincinnati, Cincinnati, 45221 OH, United States.
- 12 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 13 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 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 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 19 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
- 20 INFN Sezione di Firenze, Firenze, Italy.
- 21 Affiliated with an institute covered by a cooperation agreement with CERN.
- 22 INFN Sezione di Ferrara, Ferrara, Italy.
- 23 Syracuse University, Syracuse, 13244 NY, United States.
- 24 University of Chinese Academy of Sciences, Beijing, China.
- 25 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 26 Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
- 27 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 28 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 29 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 30 Imperial College London, London, United Kingdom.
- 31 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 32 INFN Sezione di Pisa, Pisa, Italy.
- 33 Institute Of High Energy Physics (IHEP), Beijing, China.
- 34 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 35 DS4DS, La Salle, Universitat Ramon Llull, Barcelona, Spain (associated with ICCUB, Universitat de Barcelona, Barcelona, Spain).
- 36 Università degli Studi di Padova, Università e INFN, Padova, Padova, Italy.
- 37 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 38 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 39 University of Birmingham, Birmingham, United Kingdom.
- 40 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 41 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 42 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 43 Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 44 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 45 School of Physics, University College Dublin, Dublin, Ireland.
- 46 INFN Sezione di Bari, Bari, Italy.
- 47 INFN Sezione di Bologna, Bologna, Italy.
- 48 INFN Sezione di Genova, Genova, Italy.
- 49 INFN Sezione di Milano, Milano, Italy.
- 50 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 51 INFN Sezione di Cagliari, Monserrato, Italy.
- 52 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 53 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 54 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 55 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 56 National Center for Nuclear Research (NCBJ), Warsaw, 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 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 62 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 63 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 64 Massachusetts Institute of Technology, Cambridge, 02139 MA, United States.
- 65 University of Maryland, College Park, 20742 MD, United States.
- 66 Los Alamos National Laboratory (LANL), Los Alamos, 87545 NM, United States.
- 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 Tadeusz Kosciuszko Cracow University of Technology, Cracow, Poland (associated with Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland).
- PMID: 37721819
- DOI: 10.1103/PhysRevLett.131.091901
Measurement of the Branching Fractions B(B^{0}→pp[over ¯]pp[over ¯]) and B(B_{s}^{0}→pp[over ¯]pp[over ¯])
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 LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
- 10 University of Michigan, Ann Arbor, MI, United States (associated with Syracuse University, Syracuse, 48109 NY, United States).
- 11 University of Cincinnati, Cincinnati, 45221 OH, United States.
- 12 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 13 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 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 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 19 Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
- 20 INFN Sezione di Firenze, Firenze, Italy.
- 21 Affiliated with an institute covered by a cooperation agreement with CERN.
- 22 INFN Sezione di Ferrara, Ferrara, Italy.
- 23 Syracuse University, Syracuse, 13244 NY, United States.
- 24 University of Chinese Academy of Sciences, Beijing, China.
- 25 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 26 Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
- 27 Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
- 28 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 29 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 30 Imperial College London, London, United Kingdom.
- 31 I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany.
- 32 INFN Sezione di Pisa, Pisa, Italy.
- 33 Institute Of High Energy Physics (IHEP), Beijing, China.
- 34 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 35 DS4DS, La Salle, Universitat Ramon Llull, Barcelona, Spain (associated with ICCUB, Universitat de Barcelona, Barcelona, Spain).
- 36 Università degli Studi di Padova, Università e INFN, Padova, Padova, Italy.
- 37 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 38 School of Physics and Technology, Wuhan University, Wuhan, China (associated with Center for High Energy Physics, Tsinghua University, Beijing, China).
- 39 University of Birmingham, Birmingham, United Kingdom.
- 40 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 41 School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
- 42 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China.
- 43 Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
- 44 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 45 School of Physics, University College Dublin, Dublin, Ireland.
- 46 INFN Sezione di Bari, Bari, Italy.
- 47 INFN Sezione di Bologna, Bologna, Italy.
- 48 INFN Sezione di Genova, Genova, Italy.
- 49 INFN Sezione di Milano, Milano, Italy.
- 50 INFN Sezione di Milano-Bicocca, Milano, Italy.
- 51 INFN Sezione di Cagliari, Monserrato, Italy.
- 52 INFN Sezione di Roma La Sapienza, Roma, Italy.
- 53 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 54 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, Netherlands.
- 55 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 56 National Center for Nuclear Research (NCBJ), Warsaw, 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 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 62 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 63 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 64 Massachusetts Institute of Technology, Cambridge, 02139 MA, United States.
- 65 University of Maryland, College Park, 20742 MD, United States.
- 66 Los Alamos National Laboratory (LANL), Los Alamos, 87545 NM, United States.
- 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 Tadeusz Kosciuszko Cracow University of Technology, Cracow, Poland (associated with Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland).
- PMID: 37721819
- DOI: 10.1103/PhysRevLett.131.091901
Abstract
Searches for the rare hadronic decays B^{0}→pp[over ¯]pp[over ¯] and B_{s}^{0}→pp[over ¯]pp[over ¯] are performed using proton-proton collision data recorded by the LHCb experiment and corresponding to an integrated luminosity of 9 fb^{-1}. Significances of 9.3σ and 4.0σ, including statistical and systematic uncertainties, are obtained for the B^{0}→pp[over ¯]pp[over ¯] and B_{s}^{0}→pp[over ¯]pp[over ¯] signals, respectively. The branching fractions are measured relative to the topologically similar normalization decays B^{0}→J/ψ(→pp[over ¯])K^{*0}(→K^{+}π^{-}) and B_{s}^{0}→J/ψ(→pp[over ¯])ϕ(→K^{+}K^{-}). The branching fractions are measured to be B(B^{0}→pp[over ¯]pp[over ¯])=(2.2±0.4±0.1±0.1)×10^{-8} and B(B_{s}^{0}→pp[over ¯]pp[over ¯])=(2.3±1.0±0.2±0.1)×10^{-8}. In these measurements, the first uncertainty is statistical, the second is systematic, and the third one is due to the external branching fraction of the normalization channel.
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