A search for exotic decays of the Higgs boson to a pair of light pseudoscalar particles

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High Energy Physics - Experiment

A search for exotic decays of the Higgs boson to a pair of light pseudoscalar particles

Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two muons and two b quarks in pp collisions at 13 TeV

The search for exotic decays of the higgs boson to a pair of light pseudoscalarparticles is performed under the hypothesis that one of the pseudoscalarsdecays to a pair of opposite sign muons and the other decays to such signatures are predicted in a number of extensions of the standard model (sm), including next-to-minimal supersymmetryand two-higgs-doublet models with an additional scalar singlet.

The results are based on a data set of proton-proton collisions corresponding to an integratedluminosity of 35.9 accumulated with the cms experiment at the cern lhc in 2016 at a centre-of-mass energy of 13 tev.

No statistically significant excess is observed with respect to the standard model backgrounds in the search region for pseudoscalar masses from 20 gev to half of the mass of the higgs boson.

Upper limits at 95% confidence level are set on the product of the production cross sectionand branching fraction, ranging from 5 to 33 fb, depending on the pseudoscalar mass.

Authors

CMS Collaboration

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