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Search for Higgs and Z Boson Decays to J/ψγ and ϒ(nS)γ with the ATLAS Detector.
Aad, G; Abbott, B; Abdallah, J; Abdel Khalek, S; Abdinov, O; Aben, R; Abi, B; Abolins, M; AbouZeid, O S; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y; Acharya, B S; Adamczyk, L; Adams, D L; Adelman, J; Adomeit, S; Adye, T; Agatonovic-Jovin, T; Aguilar-Saavedra, J A; Agustoni, M; Ahlen, S P; Ahmadov, F; Aielli, G; Akerstedt, H; Åkesson, T P A; Akimoto, G; Akimov, A V; Alberghi, G L; Albert, J; Albrand, S; Alconada Verzini, M J; Aleksa, M; Aleksandrov, I N; Alexa, C; Alexander, G; Alexandre, G; Alexopoulos, T; Alhroob, M; Alimonti, G; Alio, L; Alison, J; Allbrooke, B M M; Allison, L J; Allport, P P; Aloisio, A; Alonso, A; Alonso, F; Alpigiani, C.
Afiliación
  • Aad G; CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.
  • Abbott B; Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, United States of America.
  • Abdallah J; Institute of Physics, Academia Sinica, Taipei, Taiwan.
  • Abdel Khalek S; LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France.
  • Abdinov O; Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.
  • Aben R; Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, Netherlands.
  • Abi B; Department of Physics, Oklahoma State University, Stillwater, OK, United States of America.
  • Abolins M; Department of Physics and Astronomy, Michigan State University, East Lansing, MI, United States of America.
  • AbouZeid OS; Department of Physics, University of Toronto, Toronto, ON, Canada.
  • Abramowicz H; Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel.
  • Abreu H; Department of Physics, Technion: Israel Institute of Technology, Haifa, Israel.
  • Abreu R; CERN, Geneva, Switzerland.
  • Abulaiti Y; Department of Physics, Stockholm University, Sweden.
  • Acharya BS; The Oskar Klein Centre, Stockholm, Sweden.
  • Adamczyk L; INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy.
  • Adams DL; ICTP, Trieste, Italy.
  • Adelman J; AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland.
  • Adomeit S; Physics Department, Brookhaven National Laboratory, Upton, NY, United States of America.
  • Adye T; Department of Physics, Northern Illinois University, DeKalb, IL, United States of America.
  • Agatonovic-Jovin T; Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany.
  • Aguilar-Saavedra JA; Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom.
  • Agustoni M; Institute of Physics, University of Belgrade, Belgrade, Serbia.
  • Ahlen SP; Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP, Lisboa, Portugal.
  • Ahmadov F; Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada (Spain), Portugal.
  • Aielli G; Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland.
  • Akerstedt H; Department of Physics, Boston University, Boston, MA, United States of America.
  • Åkesson TP; Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia.
  • Akimoto G; INFN Sezione di Roma Tor Vergata, Roma, Italy.
  • Akimov AV; Dipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy.
  • Alberghi GL; Department of Physics, Stockholm University, Sweden.
  • Albert J; The Oskar Klein Centre, Stockholm, Sweden.
  • Albrand S; Fysiska institutionen, Lunds universitet, Lund, Sweden.
  • Alconada Verzini MJ; International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan.
  • Aleksa M; P.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, Russia.
  • Aleksandrov IN; INFN Sezione di Bologna, Italy.
  • Alexa C; Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy.
  • Alexander G; Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada.
  • Alexandre G; Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France.
  • Alexopoulos T; Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina.
  • Alhroob M; CERN, Geneva, Switzerland.
  • Alimonti G; Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia.
  • Alio L; National Institute of Physics and Nuclear Engineering, Bucharest, Romania.
  • Alison J; Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel.
  • Allbrooke BM; Section de Physique, Université de Genève, Geneva, Switzerland.
  • Allison LJ; Physics Department, National Technical University of Athens, Zografou, Greece.
  • Allport PP; Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, United States of America.
  • Aloisio A; INFN Sezione di Milano, Milano, Italy.
  • Alonso A; CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.
  • Alonso F; Enrico Fermi Institute, University of Chicago, Chicago, IL, United States of America.
  • Alpigiani C; School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom.
Phys Rev Lett ; 114(12): 121801, 2015 Mar 27.
Article en En | MEDLINE | ID: mdl-25860734
ABSTRACT
A search for the decays of the Higgs and Z bosons to J/ψγ and ϒ(nS)γ (n=1,2,3) is performed with pp collision data samples corresponding to integrated luminosities of up to 20.3 fb^{-1} collected at sqrt[s]=8 TeV with the ATLAS detector at the CERN Large Hadron Collider. No significant excess of events is observed above expected backgrounds and 95% C.L. upper limits are placed on the branching fractions. In the J/ψγ final state the limits are 1.5×10^{-3} and 2.6×10^{-6} for the Higgs and Z boson decays, respectively, while in the ϒ(1S,2S,3S)γ final states the limits are (1.3,1.9,1.3)×10^{-3} and (3.4,6.5,5.4)×10^{-6}, respectively.
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Banco de datos: MEDLINE Idioma: En Año: 2015 Tipo del documento: Article
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Banco de datos: MEDLINE Idioma: En Año: 2015 Tipo del documento: Article