Probing the CP-violating light neutral Higgs in the charged Higgs decay at the LHC

Abstract

The CP-violating MSSM allows existence of a light neutral Higgs boson ($M_{H_1} \lapp 50$ GeV) in the CPX scenario in the low $\tan β(\lapp 5)$ region, which could have escaped the LEP searches due to a strongly suppressed $H_{1}ZZ$ coupling. This parameter space corresponds to a relatively light $H^{\pm }$ ($M_{H^{\pm }}<M_t$), which is predicted to decay dominantly into the $W{H}_1$ channel. Thus one expects to see a striking $t\bar{t}$ signal at the LHC, where one of the top quarks decays into the $bb\bar{b}W$ channel, via $t\to b{H}^{\pm },H^{\pm }\to W{H}_1$ and $H_1\to b\bar{b}$. The characteristic correlation between the $b\bar{b}$, $b\bar{b}W$ and $bb\bar{b}W$ invariant mass peaks is expected to make this signal practically free of the SM background. Our parton level Monte Carlo simulation yields upto 5000 events, for $\mathcal{L}=30$ fb${}^{-1}$, over the parameter space of interest, after taking into account the b-tagging efficiency for three or more b-tagged jets.

arXiv comment13 pages, 4 figures, LaTeX. Version to appear in Phys. Lett. B. Extended discussions of the QCD and combinatorial backgrounds

References in corpus (37)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Search for the Standard Model Higgs Boson at LEP
• The origin of the matter-antimatter asymmetry
• Higgs Bosons in the Minimal Supersymmetric Standard Model with Explicit CP Violation
• The Neutron and the Electron Electric Dipole Moment in N=1 Supergravity Unification
• Electric Dipole Moments Do Not Require the CP-violating Phases of Supersymmetry To Be Small
• New two-loop contribution to electric dipole moment in supersymmetric theories
• Renormalization-Group-Improved Effective Potential for the MSSM Higgs Sector with Explicit CP Violation
• Higgs Scalar-Pseudoscalar Mixing in the Minimal Supersymmetric Standard Model
• EDM Constraints in Supersymmetric Theories
• The Chromoelectric and Purely Gluonic Operator Contributions to the Neutron Electric Dipole Moment in N=1 Supergravity
• Effects of the supersymmetric phases on the neutral Higgs sector
• CP-Odd Tadpole Renormalization of Higgs Scalar-Pseudoscalar Mixing
• CPsuperH: a Computational Tool for Higgs Phenomenology in the Minimal Supersymmetric Standard Model with Explicit CP Violation
• Loop Corrections to the Neutral Higgs Boson Sector of the MSSM with Explicit CP Violation
• MSSM Predictions for the Electric Dipole Moment of the ${}^{199}$Hg Atom
• Higgs-Mediated Electric Dipole Moments in the MSSM: An Application to Baryogenesis and Higgs Searches
• Electron and Neutron Electric Dipole Moments in the Constrained MSSM
• Constraints on Phases of Supersymmetric Flavour Conserving Couplings
• Collider Probes of the MSSM Higgs Sector with Explicit CP Violation
• Hadronic EDMs, the Weinberg Operator, and Light Gluinos
• The Higgs Boson Sector of the Complex MSSM in the Feynman-diagrammatic approach
• Implications of Supersymmetry Phases for Higgs Boson Signals and Limits
• Grand Unification Scale CP Violating Phases And The Electric Dipole Moment
• New Faces of Supersymmetry: effects of large phases on Higgs production
• Higgs Boson Decays in the Minimal Supersymmetric Standard Model with Radiative Higgs Sector CP Violation
• LEP Limits on CP-Violating Non-Minimal Higgs Sectors
• Effects of CP-violating phases on Higgs boson production at hadron colliders in the Minimal Supersymmetric Standard Model
• Observability of the Lightest MSSM Higgs Boson with Explicit CP Violation via Gluon Fusion at the LHC
• Electron and Neutron Electric Dipole Moments in the Focus Point Scenario of SUGRA Model
• Supersymmetric Higgs Boson Decays in the MSSM with Explicit CP Violation
• Probing scalar-pseudoscalar mixing in the CP violating MSSM at high-energy $e^{+}{e}^{-}$ colliders
• Observing CP Violating MSSM Higgs Bosons at Hadron Colliders ?
• Signature of Charged to Neutral Higgs Boson Decay at the LHC in SUSY Models
• Enhanced Three-Body Decay of the Charged Higgs Boson
• Cosmological Matter-Antimatter Asymmetry and Antimatter in the Universe

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