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Search for Rare or Forbidden Decays of the D
Lees, J P; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Brown, D N; Kolomensky, Yu G; Fritsch, M; Koch, H; Schroeder, T; Cheaib, R; Hearty, C; Mattison, T S; McKenna, J A; So, R Y; Blinov, V E; Buzykaev, A R; Druzhinin, V P; Golubev, V B; Kozyrev, E A; Kravchenko, E A; Onuchin, A P; Serednyakov, S I; Skovpen, Yu I; Solodov, E P; Todyshev, K Yu; Lankford, A J; Dey, B; Gary, J W; Long, O; Eisner, A M; Lockman, W S; Panduro Vazquez, W; Chao, D S; Cheng, C H; Echenard, B; Flood, K T; Hitlin, D G; Kim, J; Li, Y; Miyashita, T S; Ongmongkolkul, P; Porter, F C; Röhrken, M; Huard, Z; Meadows, B T; Pushpawela, B G; Sokoloff, M D; Sun, L.
Afiliação
  • Lees JP; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France.
  • Poireau V; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France.
  • Tisserand V; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France.
  • Grauges E; Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain.
  • Palano A; INFN Sezione di Bari and Dipartimento di Fisica, Università di Bari, I-70126 Bari, Italy.
  • Eigen G; University of Bergen, Institute of Physics, N-5007 Bergen, Norway.
  • Brown DN; Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA.
  • Kolomensky YG; Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA.
  • Fritsch M; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany.
  • Koch H; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany.
  • Schroeder T; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany.
  • Cheaib R; University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
  • Hearty C; Institute of Particle Physics, Vancouver, British Columbia, Canada V6T 1Z1.
  • Mattison TS; University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
  • McKenna JA; University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
  • So RY; University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
  • Blinov VE; University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
  • Buzykaev AR; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Druzhinin VP; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Golubev VB; Novosibirsk State Technical University, Novosibirsk 630092, Russia.
  • Kozyrev EA; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Kravchenko EA; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Onuchin AP; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Serednyakov SI; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Skovpen YI; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Solodov EP; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Todyshev KY; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Lankford AJ; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Dey B; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Gary JW; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Long O; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Eisner AM; Novosibirsk State Technical University, Novosibirsk 630092, Russia.
  • Lockman WS; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Panduro Vazquez W; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Chao DS; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Cheng CH; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Echenard B; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Flood KT; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Hitlin DG; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
  • Kim J; Novosibirsk State University, Novosibirsk 630090, Russia.
  • Li Y; University of California at Irvine, Irvine, California 92697, USA.
  • Miyashita TS; University of California at Riverside, Riverside, California 92521, USA.
  • Ongmongkolkul P; University of California at Riverside, Riverside, California 92521, USA.
  • Porter FC; University of California at Riverside, Riverside, California 92521, USA.
  • Röhrken M; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Huard Z; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Meadows BT; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Pushpawela BG; California Institute of Technology, Pasadena, California 91125, USA.
  • Sokoloff MD; California Institute of Technology, Pasadena, California 91125, USA.
  • Sun L; California Institute of Technology, Pasadena, California 91125, USA.
Phys Rev Lett ; 124(7): 071802, 2020 Feb 21.
Article em En | MEDLINE | ID: mdl-32142319
ABSTRACT
We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type D^{0}→h^{'-}h^{-}ℓ^{'+}ℓ^{+} and D^{0}→h^{'-}h^{+}ℓ^{'±}ℓ^{∓}, where h and h^{'} represent a K or π meson and ℓ and ℓ^{'} an electron or muon. The analysis is based on 468 fb^{-1} of e^{+}e^{-} annihilation data collected at or close to the ϒ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the twelve modes, and we establish 90% confidence level upper limits on the branching fractions in the range (1.0-30.6)×10^{-7}. The limits are between 1 and 3 orders of magnitude more stringent than previous measurements.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
Texto completo
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XML
PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article