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Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state of two muons and two τ leptons in proton-proton collisions at √s=13 TeV

By Diego Beghin, Bugra Bilin, Hugues Brun, Barbara Clerbaux, Gilles De Lentdecker, Hugo Delannoy, Brian Dorney, Giuseppe Fasanella, Laurent Favart, Reza Goldouzian, Anastasia Grebenyuk, Amandeep Kaur Kalsi, Thomas Lenzi, Jelena Luetic, Nicolas Postiau, Elizabeth Rose Starling, Laurent Thomas, Catherine Vander Velde, Pascal Vanlaer, David Vannerom and Qun Wang

Abstract

A search for exotic Higgs boson decays to light pseudoscalars in the final state of two muons and two τ leptons is performed using proton-proton collision data recorded by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV in 2016, corresponding to an integrated luminosity of 35.9 fb−1. Masses of the pseudoscalar boson between 15.0 and 62.5 GeV are probed, and no significant excess of data is observed above the prediction of the standard model. Upper limits are set on the branching fraction of the Higgs boson to two light pseudoscalar bosons in different types of two-Higgs-doublet models extended with a complex scalar singlet.0info:eu-repo/semantics/publishe

Topics: Physique des particules élémentaires
Publisher: 'Springer Science and Business Media LLC'
Year: 2018
DOI identifier: 10.1007/JHEP11(2018)018
OAI identifier: oai:dipot.ulb.ac.be:2013/299442
Provided by: DI-fusion
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