Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at sqrt(s) = 8 TeV

Abstract : A search is presented for decays beyond the standard model of the 125 GeV Higgs bosons to a pair of light bosons, based on models with extended scalar sectors. Light boson masses between 5 and 62.5 GeV are probed in final states containing four tau leptons, two muons and two b quarks, or two muons and two tau leptons. The results are from data in proton-proton collisions corresponding to an integrated luminosity of 19.7 inverse-femtobarns, accumulated by the CMS experiment at the LHC at a center-of-mass energy of 8 TeV. No evidence for such exotic decays is found in the data. Upper limits are set on the product of the cross section and branching fraction for several signal processes. The results are also compared to predictions of two-Higgs-doublet models, including those with an additional scalar singlet.
Document type :
Journal articles
Complete list of metadatas

Cited literature [126 references]  Display  Hide  Download

http://hal.in2p3.fr/in2p3-01430540
Contributor : Sylvie Flores <>
Submitted on : Friday, December 14, 2018 - 10:48:35 AM
Last modification on : Wednesday, July 17, 2019 - 9:06:16 AM
Long-term archiving on : Friday, March 15, 2019 - 1:53:43 PM

File

HAL-01430540.pdf
Publisher files allowed on an open archive

Identifiers

Citation

V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at sqrt(s) = 8 TeV. Journal of High Energy Physics, Springer Verlag (Germany), 2017, 10(2017) (10), pp.76. ⟨10.1007/JHEP10(2017)076⟩. ⟨in2p3-01430540⟩

Share

Metrics

Record views

485

Files downloads

39