Published November 10, 2014 | Version v1
Journal article

Search for the Standard Model Higgs boson decay to μ+μ with the ATLAS detector

  • 1. CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille (France)
  • 2. Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK (United States)
  • 3. Institute of Physics, Academia Sinica, Taipei, Taiwan (China)
  • 4. LAL, Université Paris-Sud and CNRS/IN2P3, Orsay (France)
  • 5. Institute of Physics, Azerbaijan Academy of Sciences, Baku (Azerbaijan)
  • 6. Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam (Netherlands)
  • 7. Department of Physics, Oklahoma State University, Stillwater, OK (United States)
  • 8. Department of Physics and Astronomy, Michigan State University, East Lansing, MI (United States)
  • 9. Department of Physics, University of Toronto, Toronto, ON (Canada)
  • 10. Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv (Israel)
  • 11. Department of Physics, Technion: Israel Institute of Technology, Haifa (Israel)
  • 12. CERN, Geneva (Switzerland)
  • 13. The Oskar Klein Centre, Stockholm (Sweden)
  • 14. Department of Physics, Stockholm University (Sweden)
  • 15. ICTP, Trieste (Italy)
  • 16. INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine (Italy)
  • 17. AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow (Poland)
  • 18. Physics Department, Brookhaven National Laboratory, Upton, NY (United States)
  • 19. Department of Physics, Yale University, New Haven, CT (United States)
  • 20. Fakultät für Physik, Ludwig-Maximilians-Universität München, München (Germany)

Description

A search is reported for Higgs boson decay to μ+μ using data with an integrated luminosity of 24.8 fb−1 collected with the ATLAS detector in pp collisions at √(s)=7 and 8 TeV at the CERN Large Hadron Collider. The observed dimuon invariant mass distribution is consistent with the Standard Model background-only hypothesis in the 120–150 GeV search range. For a Higgs boson with a mass of 125.5 GeV, the observed (expected) upper limit at the 95% confidence level is 7.0 (7.2) times the Standard Model expectation. This corresponds to an upper limit on the branching ratio BR(H→μ+μ) of 1.5×10−3

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2014.09.008

Additional details

Identifiers

DOI
10.1016/j.physletb.2014.09.008;
arXiv
arXiv:1406.7663v1;
PII
S0370-2693(14)00658-3;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
738
Journal Page Range
p. 68-86
ISSN
0370-2693
CODEN
PYLBAJ

Optional Information

Copyright
Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.