Seeking Heavy Higgs Bosons through Cascade Decays

Abstract : We investigate the LHC discovery prospects for a heavy Higgs boson decaying into the standard model Higgs boson and additional weak bosons. We consider a generic model-independent new physics configuration where this decay proceeds via a cascade involving other intermediate scalar bosons and focus on an LHC final-state signature comprised either of four b-jets and two charged leptons or of four charged leptons and two b-jets. We design two analyses of the corresponding signals, and demonstrate that a 5σ discovery at the 14 TeV LHC is possible for various combinations of the parent and daughter Higgs-boson masses. We moreover find that the standard model backgrounds can be sufficiently rejected to guarantee the reconstruction of the parent Higgs boson mass. We apply our analyses to the Type-II two-Higgs-doublet model and identify the regions of the parameter space to which the LHC is sensitive.
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Article dans une revue
Phys.Rev.D, 2018, 97 (7), pp.075007. 〈10.1103/PhysRevD.97.075007〉
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Soumis le : mercredi 11 avril 2018 - 09:36:23
Dernière modification le : samedi 23 mars 2019 - 01:39:10

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Baradhwaj Coleppa, Benjamin Fuks, P. Poulose, Shibananda Sahoo. Seeking Heavy Higgs Bosons through Cascade Decays. Phys.Rev.D, 2018, 97 (7), pp.075007. 〈10.1103/PhysRevD.97.075007〉. 〈hal-01763394〉



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