Compact Muon Solenoid
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| CMS-PAS-HIG-18-011 | ||
| Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars with two muons and two b jets in the final state at $\sqrt{s} = $ 13 TeV | ||
| CMS Collaboration | ||
| November 2018 | ||
| Abstract: A search for exotic decays of the Higgs boson to a pair of light pseudoscalar particles $\mathrm{a1}$ is performed under the hypothesis that one of the pseudoscalars decays to a pair of opposite sign muons and the other decays to a $\mathrm{b\bar{b}}$ pair. Such signatures are predicted in a number of extensions of the standard model (SM), including next-to-minimal supersymmetry and two-Higgs-doublet models with an additional scalar singlet. A data sample corresponding to an integrated luminosity of 35.9 fb$^{-1}$ recorded with the CMS detector in 2016 is studied. No statistically significant excess is observed with respect to the SM backgrounds in the search region for pseudoscalar masses from 20 GeV to half of the Higgs boson mass. Upper limits at 95% confidence level are set on the production cross section times branching ratio, $\sigma_{\mathrm{h}}\times{\mathcal B}(\mathrm{h}\to \mathrm{a1}\mathrm{a1}\to\mu^+\mu^{-}\mathrm{b\bar{b}})$, ranging from 5 to 36 fb, depending on the pseudoscalar mass. Corresponding limits on the branching ratio, assuming the SM prediction for $\sigma_{\mathrm{h}}$, are (1-6)$\times 10^{-4}$. | ||
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Links:
CDS record (PDF) ;
inSPIRE record ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, PLB 795 (2019) 398. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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