The LHC Discovery Potential of a Leptophilic Higgs

Abstract

In this work, we examine a two-Higgs-doublet extension of the Standard Model in which one Higgs doublet is responsible for giving mass to both up- and down-type quarks, while a separate doublet is responsible for giving mass to leptons. We examine both the theoretical and experimental constraints on the model and show that large regions of parameter space are allowed by these constraints in which the effective couplings between the lightest neutral Higgs scalar and the Standard-Model leptons are substantially enhanced. We investigate the collider phenomenology of such a "leptophilic" two-Higgs-doublet model and show that in cases where the low-energy spectrum contains only one light, CP-even scalar, a variety of collider processes essentially irrelevant for the discovery of a Standard Model Higgs boson (specifically those in which the Higgs boson decays directly into a charged-lepton pair) can contribute significantly to the discovery potential of a light-to-intermediate-mass (m_h < 140 GeV) Higgs boson at the LHC.

arXiv comment25 pages, LaVTeX, 11 figures, 1 table

References in corpus (33)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• HDECAY: a Program for Higgs Boson Decays in the Standard Model and its Supersymmetric Extension
• MadGraph/MadEvent v4: The New Web Generation
• Electroweak symmetry breaking from dimensional deconstruction
• The CP-conserving two-Higgs-doublet model: the approach to the decoupling limit
• NNLO QCD corrections to the Higgs-strahlung processes at hadron colliders
• Note on tree-level unitarity in the General Two Higgs Doublet Model
• Models of Yukawa interaction in the two Higgs doublet model, and their collider phenomenology
• Neutrino mass, Dark Matter and Baryon Asymmetry via TeV-Scale Physics without Fine-Tuning
• Phenomenology of models with more than two Higgs doublets
• Searching for H --> tau tau in weak boson fusion at the LHC
• Prospects for the Search for a Standard Model Higgs Boson in ATLAS using Vector Boson Fusion
• Searching for H -> gamma gamma in weak boson fusion at the LHC
• Non-minimal neutral Higgs bosons at LEP2
• pp -> ttH, H->tau tau: toward a model independent determination of the Higgs boson couplings at the LHC
• Fermiophobic and other non-minimal neutral Higgs bosons at the LHC
• SUSY-QCD corrections to the MSSM $h^{0}b\bar{b}$ vertex in the decoupling limit
• Distinguishing a MSSM Higgs Boson from the SM Higgs Boson at a Linear Collider
• Large 2HDM(II) one-loop corrections in leptonic tau decays
• Soft lepton-flavor violation in a multi-Higgs-doublet seesaw model
• Constraints on charged Higgs bosons from D(s)+- -> mu+- nu and D(s)+- -> tau+- nu
• Higgs ID at the LHC
• $h\to {\mu }^{+}{\mu }^{-}$ via gluon fusion at the LHC
• Higgs Decays to Muons in Weak Boson Fusion
• Unitarity constraints on scalar parameters of the Standard and Two Higgs Doublets Model
• Tree-level unitarity constraints in the 2HDM with CP-violation
• Detecting the Higgs Bosons of Minimal Supergravity with Muon Pairs
• Searching for the Higgs Bosons of Minimal Supersymmetry with Muon Pairs and Bottom Quarks
• Discovering the Higgs Bosons of Minimal Supersymmetry with Muons and a Bottom Quark
• gg-->H-->tau tau at the Upgraded Fermilab Tevatron
• Model-Independent Description and Large Hadron Collider Implications of Suppressed Two-Photon Decay of a Light Higgs Boson
• h-> mu^+ mu^- via tth Production at the LHC

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• A Model of TeV Scale Physics for Neutrino Mass, Dark Matter and Baryon Asymmetry and its Phenomenology
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• The Leptonic Higgs Portal
• Higgs boson pair production in new physics models at hadron, lepton, and photon colliders
• Lepton-Specific Two-Higgs Doublet Model: Experimental Constraints and Implication on Higgs Phenomenology
• Double Neutral Higgs production in the Two-Higgs doublet model at the LHC
• Direct and Indirect Singlet Scalar Dark Matter Detection in the Lepton-Specific two-Higgs-doublet Model
• Probing the scalar-pseudoscalar mixing in the 125 GeV Higgs particle with current data
• Charged Higgs phenomenology in the lepton-specific two Higgs doublet model
• Mass-degenerate Higgs bosons at 125 GeV in the Two-Higgs-Doublet Model
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• Triviality and vacuum stability bounds in the three-loop neutrino mass model
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• Light Charged Higgs bosons at the LHC in 2HDMs
• Multi-Higgs portal dark matter under the CDMS II results
• Multi-tau-lepton signatures at the LHC in the two Higgs doublet model
• Yukawa alignment from natural flavor conservation
• Next Generation Higgs Bosons: Theory, Constraints and Discovery Prospects at the Large Hadron Collider
• Complementarity in direct searches for additional Higgs bosons at the LHC and the International Linear Collider
• Dark matter annihilation through a lepton-specific Higgs boson
• Neutrino Masses from Loop-induced $d\ge 7$ Operators
• Charged Higgs phenomenology in the flipped two Higgs doublet model
• Charge Asymmetric Cosmic Ray Signals From Dark Matter Decay
• Boosting to identify: pseudoscalar searches with di-leptonic tops
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• Probing the Majorana nature of TeV-scale radiative seesaw models at collider experiments
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• Reconstructing heavy Higgs boson masses in Type X Two-Higgs Doublet Model with a light pseudoscalar
• Constraints on 3-3-1 models with electroweak Z pole observables and Z' search at LHC
• Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models
• First-order electroweak phase transition powered by additional F-term loop effects in an extended supersymmetric Higgs sector
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• New theories for the Fermi scale
• Probing Models of Dirac Neutrino Masses via the Flavor Structure of the Mass Matrix
• Muon g-2 and galactic centre $\gamma$-ray excess in a scalar extension of the 2HDM type-X
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• Testing Higgs models via the $H^{\pm }{W}^{\mp }Z$ vertex by a recoil method at the International Linear Collider
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• Quasi-Dirac neutrinos in a model with local $B-L$ symmetry
• Light vector dark matter with scalar mediator and muon g-2 anomaly
• Determination of tan(beta) from the Higgs boson decay at linear colliders
• Search for heavy neutral CP-even Higgs within Type-IV 2HDM at a future linear collider
• Searching for a dilaton decaying to muon pairs at the LHC
• Pseudoscalar decays to gauge bosons at the LHC and at a future 100 TeV collider
• Higgs boson phenomenology in tau^+ tau^- final states at the LHC
• Leptophilic neutral Higgs bosons in two Higgs doublet model at a linear collider
• A Three Doublet Lepton-Specific Model
• Electroweak baryogenesis in the three-loop neutrino mass model with dark matter
• Exploring Four Fermion Contact Couplings of a Dark Fermion and an Electron at Hadron Colliders and Direct Detection Experiments
• Constraining the heavy leptophilic neutral gauge bosons through the $Z\to {\ell }^{+}{\ell }^{-}$, $W^{\pm }\to {\ell }^{\pm }{\nu }_{\ell }$, and $h\to {\ell }^{+}{\ell }^{-}$ decays