Search for a Light Pseudoscalar Higgs Boson in the Dimuon Decay Channel in pp Collisions at √s=7 TeV
Name
Chatrchyan-2012-Search for a Light Pseudoscalar Higgs Boson.pdf
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Author(s)
Bauer, Gerry P.
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Chan, M.
Dutta, V.
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Hahn, Kristian Allan
Date Issued
September 2012
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Chatrchyan, S. et al. “Search for a Light Pseudoscalar Higgs Boson in the Dimuon Decay Channel in Pp Collisions at Sqrt[s]=7 TeV.” Physical Review Letters 109.12 (2012). © 2012 CERN, for the CMS Collaboration
Version
Final published version
Abstract
The dimuon invariant mass spectrum is searched in the range between 5.5 and 14 GeV for a light pseudoscalar Higgs boson a, predicted in a number of new physics models, including the next-to-minimal supersymmetric standard model. The data sample used in the search corresponds to an integrated luminosity of 1.3 fb[superscript -1] collected in pp collisions at √s=7 TeV with the CMS detector at the LHC. No excess is observed above the background predictions and upper limits are set on the cross section times branching fraction σ×B(pp→a→μ[superscript +]μ[superscript -]) in the range of 1.5–7.5 pb. These results improve on existing bounds on the abb̅ coupling for m[subscript a]m[subscript Υ(3S)]. Constraints on the supersymmetric parameter space are presented in the context of the next-to-minimal model.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.109.121801
