Evidence for CP violation in B+ → ppK+ decays
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
- 2 Universidad de Santiago de Compostela, Santiago de Compostela, Spain.
- 3 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 4 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 5 Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 6 CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France.
- 7 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 8 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 9 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 10 Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia.
- 11 Sezione INFN di Roma La Sapienza, Roma, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 12 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 13 Sezione INFN di Padova, Padova, Italy.
- 14 LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France.
- 15 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 16 Sezione INFN di Firenze, Firenze, Italy.
- 17 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 18 University of Cincinnati, Cincinnati, Ohio 45221, USA.
- 19 Sezione INFN di Ferrara, Ferrara, Italy.
- 20 University of Maryland, College Park, Maryland 20742, USA.
- 21 School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 22 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 23 Institute for High Energy Physics (IHEP), Protvino, Russia.
- 24 Syracuse University, Syracuse, New York, USA.
- 25 Sezione INFN di Roma La Sapienza, Roma, Italy.
- 26 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 27 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 28 Universitat de Barcelona, Barcelona, Spain.
- 29 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 30 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 31 Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 32 LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France.
- 33 Sezione INFN di Pisa, Pisa, Italy.
- 34 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 35 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia.
- 36 LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France.
- 37 Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy.
- 38 Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 39 University of Birmingham, Birmingham, United Kingdom.
- 40 Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia.
- 41 Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 42 Sezione INFN di Cagliari, Cagliari, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 43 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands.
- 44 Sezione INFN di Cagliari, Cagliari, Italy.
- 45 Sezione INFN di Milano Bicocca, Milano, Italy.
- 46 Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 47 Sezione INFN di Bologna, Bologna, Italy.
- 48 Sezione INFN di Roma Tor Vergata, Roma, Italy.
- 49 Sezione INFN di Genova, Genova, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 50 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 51 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 52 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland and Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 53 Imperial College London, London, United Kingdom.
- 54 Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
- 55 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil (associated with Institution Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil).
- 56 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 57 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 58 European Organization for Nuclear Research (CERN), Geneva, Switzerland and STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 59 Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia.
- 60 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 61 Sezione INFN di Genova, Genova, Italy.
- 62 Sezione INFN di Firenze, Firenze, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 63 Sezione INFN di Milano, Milano, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 64 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 65 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland and Imperial College London, London, United Kingdom.
- 66 Institut für Physik, Universität Rostock, Rostock, Germany (associated with Institution Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 67 Institute for High Energy Physics (IHEP), Protvino, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 68 European Organization for Nuclear Research (CERN), Geneva, Switzerland and Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
- 69 Sezione INFN di Milano Bicocca, Milano, Italy and Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 70 National Research Centre Kurchatov Institute, Moscow, Russia (associated with Institution Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia).
- 71 Instituto de Fisica Corpuscular (IFIC), Universitat de Valencia-CSIC, Valencia, Spain (associated with Institution Universitat de Barcelona, Barcelona, Spain).
- 72 School of Physics, University College Dublin, Dublin, Ireland.
- 73 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 74 Sezione INFN di Milano, Milano, Italy.
- 75 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 76 KVI-University of Groningen, Groningen, The Netherlands (associated with Institution Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands).
- 77 Sezione INFN di Bari, Bari, Italy.
- 78 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany and University of Birmingham, Birmingham, United Kingdom.
- 79 Celal Bayar University, Manisa, Turkey (associated with Institution European Organization for Nuclear Research (CERN), Geneva, Switzerland).
- 80 Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia and Department of Physics, University of Warwick, Coventry, United Kingdom.
- 81 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia and Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 82 Sezione INFN di Ferrara, Ferrara, Italy and NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 83 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom and Department of Physics, University of Oxford, Oxford, United Kingdom.
- 84 Sezione INFN di Pisa, Pisa, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 85 European Organization for Nuclear Research (CERN), Geneva, Switzerland and Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 86 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- PMID: 25325630
- DOI: 10.1103/PhysRevLett.113.141801
Evidence for CP violation in B+ → ppK+ decays
Authors
Affiliations
- 1 Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
- 2 Universidad de Santiago de Compostela, Santiago de Compostela, Spain.
- 3 H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
- 4 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 5 Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
- 6 CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France.
- 7 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
- 8 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 9 School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 10 Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia.
- 11 Sezione INFN di Roma La Sapienza, Roma, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 12 Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- 13 Sezione INFN di Padova, Padova, Italy.
- 14 LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France.
- 15 Center for High Energy Physics, Tsinghua University, Beijing, China.
- 16 Sezione INFN di Firenze, Firenze, Italy.
- 17 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 18 University of Cincinnati, Cincinnati, Ohio 45221, USA.
- 19 Sezione INFN di Ferrara, Ferrara, Italy.
- 20 University of Maryland, College Park, Maryland 20742, USA.
- 21 School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 22 Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany.
- 23 Institute for High Energy Physics (IHEP), Protvino, Russia.
- 24 Syracuse University, Syracuse, New York, USA.
- 25 Sezione INFN di Roma La Sapienza, Roma, Italy.
- 26 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 27 Department of Physics, University of Warwick, Coventry, United Kingdom.
- 28 Universitat de Barcelona, Barcelona, Spain.
- 29 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 30 National Center for Nuclear Research (NCBJ), Warsaw, Poland.
- 31 Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 32 LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France.
- 33 Sezione INFN di Pisa, Pisa, Italy.
- 34 Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil.
- 35 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia.
- 36 LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France.
- 37 Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy.
- 38 Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 39 University of Birmingham, Birmingham, United Kingdom.
- 40 Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia.
- 41 Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 42 Sezione INFN di Cagliari, Cagliari, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 43 Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands.
- 44 Sezione INFN di Cagliari, Cagliari, Italy.
- 45 Sezione INFN di Milano Bicocca, Milano, Italy.
- 46 Laboratori Nazionali dell'INFN di Frascati, Frascati, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 47 Sezione INFN di Bologna, Bologna, Italy.
- 48 Sezione INFN di Roma Tor Vergata, Roma, Italy.
- 49 Sezione INFN di Genova, Genova, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 50 School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 51 Department of Physics, University of Oxford, Oxford, United Kingdom.
- 52 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland and Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 53 Imperial College London, London, United Kingdom.
- 54 Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
- 55 Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil (associated with Institution Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil).
- 56 NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 57 Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland.
- 58 European Organization for Nuclear Research (CERN), Geneva, Switzerland and STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 59 Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia.
- 60 AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków, Poland.
- 61 Sezione INFN di Genova, Genova, Italy.
- 62 Sezione INFN di Firenze, Firenze, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 63 Sezione INFN di Milano, Milano, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 64 Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania.
- 65 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland and Imperial College London, London, United Kingdom.
- 66 Institut für Physik, Universität Rostock, Rostock, Germany (associated with Institution Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany).
- 67 Institute for High Energy Physics (IHEP), Protvino, Russia and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 68 European Organization for Nuclear Research (CERN), Geneva, Switzerland and Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
- 69 Sezione INFN di Milano Bicocca, Milano, Italy and Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 70 National Research Centre Kurchatov Institute, Moscow, Russia (associated with Institution Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia).
- 71 Instituto de Fisica Corpuscular (IFIC), Universitat de Valencia-CSIC, Valencia, Spain (associated with Institution Universitat de Barcelona, Barcelona, Spain).
- 72 School of Physics, University College Dublin, Dublin, Ireland.
- 73 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 74 Sezione INFN di Milano, Milano, Italy.
- 75 Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine.
- 76 KVI-University of Groningen, Groningen, The Netherlands (associated with Institution Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands).
- 77 Sezione INFN di Bari, Bari, Italy.
- 78 Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany and University of Birmingham, Birmingham, United Kingdom.
- 79 Celal Bayar University, Manisa, Turkey (associated with Institution European Organization for Nuclear Research (CERN), Geneva, Switzerland).
- 80 Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia and Department of Physics, University of Warwick, Coventry, United Kingdom.
- 81 Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia and Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia.
- 82 Sezione INFN di Ferrara, Ferrara, Italy and NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine.
- 83 STFC Rutherford Appleton Laboratory, Didcot, United Kingdom and Department of Physics, University of Oxford, Oxford, United Kingdom.
- 84 Sezione INFN di Pisa, Pisa, Italy and European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 85 European Organization for Nuclear Research (CERN), Geneva, Switzerland and Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 86 Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China (associated with Institution Center for High Energy Physics, Tsinghua University, Beijing, China).
- PMID: 25325630
- DOI: 10.1103/PhysRevLett.113.141801
Erratum in
-
Erratum: Evidence for CP Violation in B^{+}→pp[over ¯]K^{+} Decays [Phys. Rev. Lett. 113, 141801 (2014)].Aaij R, Anonymous; LHCb Collaboration. Aaij R, et al. Phys Rev Lett. 2025 May 2;134(17):179901. doi: 10.1103/PhysRevLett.134.179901. Phys Rev Lett. 2025. PMID: 40408759
Abstract
Three-body B+ → ppK+ and B(+) → ppπ(+) decays are studied using a data sample corresponding to an integrated luminosity of 3.0 fb(-1) collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV. Evidence of CP violation in the B(+) → ppK(+) decay is found in regions of the phase space, representing the first measurement of this kind for a final state containing baryons. Measurements of the forward-backward asymmetry of the light meson in the pp rest frame yield A(FB)(ppK(+),m(pp)<2.85 GeV/c(2)) = 0.495 ± 0.012 (stat) ± 0.007 (syst) and A(FB)(ppπ(+),m(pp) <2.85 GeV/c(2)) = -0.409 ± 0.033 (stat) ± 0.006 (syst). In addition, the branching fraction of the decay B(+) → Λ(1520)p is measured to be B(B(+) → Λ(1520)p) = (3.15 ± 0.48 (stat) ± 0.07 (syst) ± 0.26 (BF)) × 10(-7), where BF denotes the uncertainty on secondary branching fractions.
LinkOut - more resources
Miscellaneous