Enhancement of Loop Induced $H^{\pm }{W}^{\mp }{Z}^0$ Vertex in Two Higgs-doublet Model

Abstract

The non-decoupling effects of heavy Higgs bosons as well as fermions on the loop-induced $H^{\pm }{W}^{\mp }{Z}^0$ vertex are discussed in the general two Higgs doublet model. The decay width of the process $H^{+}\to W^{+}{Z}^0$ is calculated at one-loop level and the possibility of its enhancement is explored both analytically and numerically. We find that the novel enhancement of the decay width can be realized by the Higgs non-decoupling effects with large mass-splitting between the charged Higgs boson and the CP-odd one. This is due to the large breakdown of the custodial $SU(2{)}_V$ invariance in the Higgs sector. The branching ratio can amount to $10^{-2}\sim 10^{-1}$ for $m_{H^{\pm }}=300$ GeV within the constraint from the present experimental data. Hence this mode may be detectable at LHC or future $e^{+}{e}^{-}$ linear colliders.

31+1 pages, Latex with 8 eps-files

References in corpus (4)

• Analysis of Electroweak Precision Data and Prospects for Future Improvements
• The Effective Lagrangian of the Two Higgs Doublet Model
• Non-Decoupling Effects of Higgs Bosons on $e^{+}{e}^{-}\to W_L^{+}{W}_L^{-}$ in the Two-Doublet Model
• Upper Bound on R_b in Two Higgs Doublet Model from Lepton Universality

Cited by in corpus (40)

• Higgs coupling constants as a probe of new physics
• New Physics Effect on the Higgs Self-Coupling
• Vector boson fusion at NNLO in QCD: SM Higgs and beyond
• Fingerprinting non-minimal Higgs sectors
• Unitarity bounds in the Higgs model including triplet fields with custodial symmetry
• Indirect bounds on heavy scalar masses of the two-Higgs-doublet model in light of recent Higgs boson searches
• Probing exotic Higgs sectors from the precise measurement of Higgs boson couplings
• Novel Constraint on Parameter Space of the Georgi-Machacek Model by Current LHC Data
• 2HDM Higgs-to-Higgs Decays at Next-to-Leading Order
• Searches of exotic Higgs bosons in general mass spectra of the Georgi-Machacek model at the LHC
• An effective lagrangian description of charged Higgs decays H^+ -> Wg, WZ and Wh
• Probing extended Higgs sectors by the synergy between direct searches at the LHC and precision tests at future lepton colliders
• Yukawa txtures and charged Higgs boson phenomenology in the type-III two-Higgs-doublet model
• Aligned CP-violating Higgs sector canceling the electric dipole moment
• Phenomenology of the Georgi-Machacek model at future electron-positron colliders
• Associated production of H^{\pm} and W^{\mp} in high-energy e+e- collisions in the Minimal Supersymmetric Standard Model
• Higgs Phenomenology in the Minimal $SU(3{)}_L\times U(1{)}_X$ Model
• The $H^{\pm }{W}^{\mp }{Z}^0$ vertex and single charged Higgs boson production via $WZ$ fusion at the Large Hadron Collider
• Potential for measuring the H^\pm W^\mp Z^0 vertex from WZ fusion at the Large Hadron Collider
• Decay H^+ -> W^+ gamma in a nonlinear R_xi-gauge
• Charged Higgs Bosons decays H^\pm \to W^\pm (γ, Z) revisited
• Charged Higgs boson phenomenology in Supersymmetric models with Higgs triplets
• Implications of Yukawa Textures in the decay $H^{+}\to W^{+}\gamma$ within the 2HDM-III
• A new Higgs effective field theory and the new no-lose theorem
• Single Charged Higgs Boson Production in Polarized Photon Collision and the Probe of New Physics
• Testing Higgs models via the $H^{\pm }{W}^{\mp }Z$ vertex by a recoil method at the International Linear Collider
• Loop induced $H^{\pm }\to W^{\pm }Z$ decays in the aligned two-Higgs-doublet model
• Probing double-aligned two Higgs doublet models at LHC
• Probing the $H^{\pm }{W}^{\mp }Z$ interaction at the high energy upgrade of the LHC
• New scenario for aligned Higgs couplings originated from the twisted custodial symmetry at high energies
• Testing aligned CP-violating Higgs sector at future lepton colliders
• $H^{+}{W}^{-}Z$ contribution to the static quantities of the W boson in the context of Higgs-triplet theories
• CP violation in Charged Higgs Bosons decays $H^{\pm }\to W^{\pm }(\gamma ,Z)$ in the Minimal Supersymmetric Standard Model (MSSM)
• The decays h+- -> W-+ h0(a0) within an extension of the MSSM with one complex Higgs triplet
• The γγ\to ϕ_iϕ_j processes in the type-III two-Higgs-doublet model
• Left-Right squarks mixings effects in Charged Higgs Bosons decays $H^{\pm }\to W^{\pm }(\gamma ,Z)$ in the MSSM
• Probing doubly charged scalar bosons from the doublet at future high-energy colliders
• Fingerprinting the contribution of colored scalars to the $H^{+}{W}^{-}Z(\gamma )$ vertex
• QCD Corrections to $e^{+}{e}^{-}\to H^{\pm }{W}^{\mp }$ in Type-I THDM at Electron Positron Colliders
• H^+ -> W^+ l_i^- l_j^+$ decay in the two Higgs doublet model