Your browser doesn't support javascript.
loading
Search for an additional, heavy Higgs boson in the [Formula: see text] decay channel at [Formula: see text] in [Formula: see text] collision data with the ATLAS detector.
Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Aben, R; 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; Affolder, A A; Agatonovic-Jovin, T; Agricola, J; Aguilar-Saavedra, J A; Ahlen, S P; Ahmadov, F; Aielli, G; Akerstedt, H; Åkesson, T P A; Akimov, A V; Alberghi, G L; Albert, J; Albrand, S; Alconada Verzini, M J; Aleksa, M; Aleksandrov, I N; Alexa, C; Alexander, G; Alexopoulos, T; Alhroob, M; Alimonti, G; Alio, L; Alison, J; Alkire, S P; Allbrooke, B M M; Allport, P P; Aloisio, A; Alonso, A; Alonso, F; Alpigiani, C; Altheimer, A; Alvarez Gonzalez, B; Álvarez Piqueras, D.
Affiliation
  • Aad G; Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
  • Abbott B; Department of Physics, McGill University, Montreal, QC Canada.
  • Abdallah J; Department of Physics, University of Pennsylvania, Philadelphia, PA USA.
  • Abdinov O; Physics Department, University of Athens, Athens, Greece.
  • Aben R; Fysiska institutionen, Lunds universitet, Lund, Sweden.
  • Abolins M; Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia.
  • AbouZeid OS; Department of Physics, University of Coimbra, Coimbra, Portugal.
  • Abramowicz H; INFN Sezione di Pisa, Pisa, Italy.
  • Abreu H; National Research Centre 'Kurchatov Institute' B.P.Konstantinov Petersburg Nuclear Physics Institute, St. Petersburg, Russia.
  • Abreu R; Department of Physics and Astronomy, Michigan State University, East Lansing, MI USA.
  • Abulaiti Y; Graduate School of Science, Osaka University, Osaka, Japan.
  • Acharya BS; Czech Technical University in Praha, Praha, Czech Republic.
  • Adamczyk L; Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina.
  • Adams DL; Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy.
  • Adelman J; Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid, Madrid, Spain.
  • Adomeit S; Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK.
  • Adye T; INFN Sezione di Napoli, Naples, Italy.
  • Affolder AA; SUPA-School of Physics and Astronomy, University of Glasgow, Glasgow, UK.
  • Agatonovic-Jovin T; Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.
  • Agricola J; INFN Gruppo Collegato di Cosenza, Laboratori Nazionali di Frascati, Frascati, Italy.
  • Aguilar-Saavedra JA; D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow, Russia.
  • Ahlen SP; Department of Physics Engineering, Gaziantep University, Gaziantep, Turkey.
  • Ahmadov F; SUPA-School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
  • Aielli G; Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM USA.
  • Akerstedt H; Graduate School of Science, Osaka University, Osaka, Japan.
  • Åkesson TP; ZITI Institut für technische Informatik, Ruprecht-Karls-Universität Heidelberg, Mannheim, Germany.
  • Akimov AV; Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina.
  • Alberghi GL; School of Physics and Astronomy, University of Birmingham, Birmingham, UK.
  • Albert J; Dipartimento di Fisica, Sapienza Università di Roma, Roma, Italy.
  • Albrand S; Dipartimento di Fisica, Università della Calabria, Rende, Italy.
  • Alconada Verzini MJ; E. Andronikashvili Institute of Physics, Iv. Javakhishvili Tbilisi State University, Tbilisi, Georgia.
  • Aleksa M; Electrical Circuits Department, Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil.
  • Aleksandrov IN; SUPA-School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
  • Alexa C; Physikalisches Institut, University of Bonn, Bonn, Germany.
  • Alexander G; INFN Sezione di Pisa, Pisa, Italy.
  • Alexopoulos T; Department of Physics, The University of Texas at Arlington, Arlington, TX USA.
  • Alhroob M; Department of Physics, McGill University, Montreal, QC Canada.
  • Alimonti G; KEK, High Energy Accelerator Research Organization, Tsukuba, Japan.
  • Alio L; Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
  • Alison J; Federal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil.
  • Alkire SP; Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj Napoca, Romania.
  • Allbrooke BM; INFN Sezione di Pavia, Pavia, Italy.
  • Allport PP; SUPA-School of Physics and Astronomy, University of Glasgow, Glasgow, UK.
  • Aloisio A; Department of Physics and Astronomy, University College London, London, UK.
  • Alonso A; University Politehnica Bucharest, Bucharest, Romania.
  • Alonso F; E. Andronikashvili Institute of Physics, Iv. Javakhishvili Tbilisi State University, Tbilisi, Georgia.
  • Alpigiani C; Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France.
  • Altheimer A; Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj Napoca, Romania.
  • Alvarez Gonzalez B; Electrical Circuits Department, Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil.
  • Álvarez Piqueras D; Particle Physics Department, Rutherford Appleton Laboratory, Didcot, UK.
Article in En | MEDLINE | ID: mdl-26949371
ABSTRACT
A search is presented for a high-mass Higgs boson in the [Formula see text], [Formula see text], [Formula see text], and [Formula see text] decay modes using the ATLAS detector at the CERN Large Hadron Collider. The search uses proton-proton collision data at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb[Formula see text]. The results of the search are interpreted in the scenario of a heavy Higgs boson with a width that is small compared with the experimental mass resolution. The Higgs boson mass range considered extends up to [Formula see text] for all four decay modes and down to as low as 140 [Formula see text], depending on the decay mode. No significant excess of events over the Standard Model prediction is found. A simultaneous fit to the four decay modes yields upper limits on the production cross-section of a heavy Higgs boson times the branching ratio to [Formula see text] boson pairs. 95 % confidence level upper limits range from 0.53 pb at [Formula see text] GeV to 0.008 pb at [Formula see text] GeV for the gluon-fusion production mode and from 0.31 pb at [Formula see text] GeV to 0.009 pb at [Formula see text] GeV for the vector-boson-fusion production mode. The results are also interpreted in the context of Type-I and Type-II two-Higgs-doublet models.

Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Eur Phys J C Part Fields Year: 2016 Document type: Article Affiliation country:

Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Eur Phys J C Part Fields Year: 2016 Document type: Article Affiliation country:
...