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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; Lin, D X; Miyashita, T S; Ongmongkolkul, P; Oyang, J; Porter, F C; Röhrken, M; Huard, Z; Meadows, B T; Pushpawela, B G.
Affiliation
  • 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 V6T 1Z1, Canada.
  • Hearty C; Institute of Particle Physics, Vancouver, British Columbia V6T 1Z1, Canada.
  • Mattison TS; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada.
  • McKenna JA; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada.
  • So RY; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada.
  • Blinov VE; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada.
  • 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.
  • Lin DX; University of California at Riverside, Riverside, California 92521, USA.
  • Miyashita TS; University of California at Riverside, Riverside, California 92521, USA.
  • Ongmongkolkul P; University of California at Riverside, Riverside, California 92521, USA.
  • Oyang J; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Porter FC; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Röhrken M; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Huard Z; California Institute of Technology, Pasadena, California 91125, USA.
  • Meadows BT; California Institute of Technology, Pasadena, California 91125, USA.
  • Pushpawela BG; California Institute of Technology, Pasadena, California 91125, USA.
Phys Rev Lett ; 125(18): 181801, 2020 Oct 30.
Article in En | MEDLINE | ID: mdl-33196250
ABSTRACT
Many scenarios of physics beyond the standard model predict the existence of new gauge singlets, which might be substantially lighter than the weak scale. The experimental constraints on additional scalars with masses in the MeV to GeV range could be significantly weakened if they interact predominantly with leptons rather than quarks. At an e^{+}e^{-} collider, such a leptophilic scalar (ϕ_{L}) would be produced predominantly through radiation from a τ lepton. We report herein a search for e^{+}e^{-}→τ^{+}τ^{-}ϕ_{L}, ϕ_{L}→ℓ^{+}ℓ^{-} (ℓ=e, µ) using data collected by the BABAR experiment at SLAC. No significant signal is observed, and we set limits on the ϕ_{L} coupling to leptons in the range 0.04muon anomalous magnetic moment below 4 GeV at 90% confidence level.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Phys Rev Lett Year: 2020 Document type: Article Affiliation country:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Phys Rev Lett Year: 2020 Document type: Article Affiliation country: