Light MSSM Higgs boson scenario and its test at hadron colliders

Abstract

We show that in the Minimal Supersymmetric Standard Model, the possibility for the lightest CP-even Higgs boson to be lighter than $Z$ boson (as low as about 60 GeV) is, contrary to the usual belief, not yet excluded by LEP2 data or any other existing experimental data. The characteristic of the light Higgs boson scenario (LHS) is that the $ZZh$ coupling and the decay branching ratio $\mathrm{Br}(h/A\to b\bar{b})$ are simultaneously suppressed as a result of generic supersymmetric loop corrections. Consequently, the $W^{\pm }{H}^{\mp }h$ coupling has to be large due to the sum rule of Higgs couplings to weak gauge bosons. In addition to discussing the potential of the Tevatron and $B$-factories to test the LHS, we show that the associate neutral and charged Higgs boson production process, $pp\to H^{\pm }h(A)$, can completely probe LHS at the CERN Large Hadron Collider.

4 pages, 2 figures, RevTex4

References in corpus (5)

• Search for Neutral MSSM Higgs Bosons at LEP
• Direct Limits on the Bs Oscillation Frequency
• Search for squarks and gluinos in events with jets and missing transverse energy in ppbar collisions at sqrt(s)=1.96 TeV
• Search for pair production of scalar bottom quarks in ppbar collisions at sqrt(s)=1.96 TeV
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Cited by in corpus (19)

• Models of Yukawa interaction in the two Higgs doublet model, and their collider phenomenology
• Triplet Scalars and Dark Matter at the LHC
• MSSM Higgs Bosons at The LHC
• Bounds on scalar masses in two Higgs doublet models
• Electroweak phase transition, critical bubbles and sphaleron decoupling condition in the MSSM
• Phenomenology of the constrained NMSSM
• A Solution for Little Hierarchy Problem and b --> s gamma
• New benchmark scenarios of electroweak baryogenesis in aligned two Higgs double models
• Partially Strong WW Scattering
• BMSSM Implications for Cosmology
• Implications of the LEP Higgs Bounds for the MSSM Stop Sector
• Testing Higgs models via the $H^{\pm }{W}^{\mp }Z$ vertex by a recoil method at the International Linear Collider
• Probing double-aligned two Higgs doublet models at LHC
• Single charged Higgs boson production at the LHC
• Exploring SUSY light Higgs boson scenarios via dark matter experiments
• Neutralino Dark Matter in minimal supersymmetric standard model with natural light Higgs sector
• Electroweak baryogenesis in the three-loop neutrino mass model with dark matter
• Exploring Wrong Sign Scenarios in the Yukawa-Aligned 2HDM
• Radiative corrections to decays of charged Higgs bosons in two Higgs doublet models