1. Seeking heavy Higgs bosons through cascade decays
- Author
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Baradhwaj Coleppa, Benjamin Fuks, Shibananda Sahoo, Poulose Poulose, Laboratoire de Physique Théorique et Hautes Energies (LPTHE), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique et Hautes Energies ( LPTHE ), and Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Centre National de la Recherche Scientifique ( CNRS )
- Subjects
p p: scattering ,Particle physics ,Physics beyond the Standard Model ,FOS: Physical sciences ,bottom: pair production ,Parameter space ,01 natural sciences ,High Energy Physics - Phenomenology (hep-ph) ,0103 physical sciences ,Higgs particle: cascade decay ,010306 general physics ,Boson ,Physics ,Large Hadron Collider ,new physics ,010308 nuclear & particles physics ,High Energy Physics::Phenomenology ,Scalar (physics) ,Higgs particle: doublet: 2 ,Higgs particle: heavy ,Sigma ,High Energy Physics - Phenomenology ,CERN LHC Coll ,Higgs particle: mass ,Higgs particle: production ,[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] ,Higgs model ,Higgs boson ,[ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph] ,High Energy Physics::Experiment ,jet: bottom ,Higgs particle: decay modes ,Lepton - 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 5{\sigma} 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 reconstrution 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., Comment: 15 pages, 9 figures, version accepted by PRD
- Published
- 2018
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