Minimal violation of flavour and custodial symmetries in a vectophobic Two-Higgs-Doublet-Model

Abstract

Tree-level accidental symmetries are known to play a fundamental role in the phenomenology of the Standard Model (SM) for electroweak interactions. So far, no significant deviations from the theory have been observed in precision, flavour and collider physics. Consequently, these global symmetries are expected to remain quite efficient in any attempt beyond the SM. Yet, they do not forbid rather unorthodox phenomena within the reach of current LHC experiments. This is illustrated with a vectophobic Two-Higgs-Doublet-Model (2HDM) where effects of a light, flavour-violating and custodian (pseudo)scalar might be observed in the $B_s\to {\mu }^{+}{\mu }^{-}$ decay rate and in the diphoton invariant mass spectrum at around 125 GeV.

13 pages, 3 figures, v2: constraints from B_s -> mu+mu- updated, references added, to appear in Phys.Lett. B

References in corpus (12)

• Search for the Standard Model Higgs boson in the diphoton decay channel with 4.9 fb-1 of pp collisions at sqrt(s) = 7 TeV with ATLAS
• Search for the standard model Higgs boson decaying into two photons in pp collisions at sqrt(s)=7 TeV
• Next-to-Next-to-Leading-Order Charm-Quark Contribution to the CP Violation Parameter epsilon_K and Delta M_K
• Correlations among new CP violating effects in Delta F = 2 observables
• Strong constraints on the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
• Possible Indications of New Physics in Bd-mixing and in sin(2 beta) Determinations
• A Twisted Custodial Symmetry in the Two-Higgs-Doublet Model
• Minimal Flavour Violation and Beyond
• Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models?
• On The Potential of Minimal Flavour Violation
• Is the LHC Observing the Pseudo-scalar State of a Two-Higgs Doublet Model ?
• Two Higgs Doublets from Fermion Condensation

Cited by in corpus (50)

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• Status of low energy SUSY models confronted with the LHC 125 GeV Higgs data
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• MSSM Higgs Bosons at The LHC
• Fingerprinting non-minimal Higgs sectors
• Pair Production of a 125 GeV Higgs Boson in MSSM and NMSSM at the LHC
• A Minimal Flavor Violating 2HDM at the LHC
• Probing top-Higgs non-standard interactions at the LHC
• Implications of Higgs boson search data on the two-Higgs doublet models with a softly broken $Z_2$ symmetry
• Measuring extended Higgs sectors as a consistent free couplings model
• Towards a general analysis of LHC data within two-Higgs-doublet models
• Probing the scalar-pseudoscalar mixing in the 125 GeV Higgs particle with current data
• Scalar sector properties of two-Higgs-doublet models with a global U(1) symmetry
• Comprehensive study of two Higgs doublet model in light of the new boson with mass around 125 GeV
• Probing the charged Higgs boson at the LHC in the CP-violating type-II 2HDM
• Can the 126 GeV boson be a pseudoscalar?
• The recent Higgs boson data and Higgs triplet model with vectorlike quarks
• Constraining Type II 2HDM in Light of LHC Higgs Searches
• Little Higgs theory confronted with the LHC Higgs data
• Hierarchical vs Degenerate 2HDM: The LHC Run 1 Legacy at the Onset of Run 2
• Status of the aligned two-Higgs-doublet model confronted with the Higgs data
• Pair production of a 125 GeV Higgs boson in MSSM and NMSSM at the ILC
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• Higgs decay to dark matter in low energy SUSY: is it detectable at the LHC ?
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• Exploring top quark FCNC within 2HDM type III in association with flavor physics
• Decoupling Theoretical Uncertainties from Measurements of the Higgs Boson
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• Pair Production of MSSM Higgs Bosons in the Non-decoupling Region at the LHC
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• Invariants and Flavour in the General Two-Higgs Doublet Model
• Distinguishing Various Models of the 125 GeV Boson in Vector Boson Fusion
• Implications on the Heavy CP-even Higgs Boson from Current Higgs Data
• Exclusive radiative B-meson decays within minimal flavour violating 2HDMs
• Two-Higgs-Doublet type-II and -III models and $t\to ch$ at the LHC
• Two Higgs doublet models augmented by a scalar color octet
• $B_{s,d}-{\bar{B}}_{s,d}$ mixings and $B_{s,d}\to {\ell }^{+}{\ell }^{-}$ decays within the Manohar-Wise model
• Naturalness in a simple two Higgs doublet model
• Discovering Strong Top Dynamics at the LHC
• Left-right twin Higgs model confronted with the latest LHC Higgs data
• Lightness of a Higgs Boson and Spontaneous CP-violation in the Lee Model: An Alternative Scenario
• Constraints on models for the Higgs boson with exotic spin and parity in $\mathbf{VH}\to \mathbf{Vb}\bar{\mathbf{b}}$ final states
• Various Models Mimicking the SM Higgs Boson
• $K^0-{\bar{K}}^0$ mixing in the minimal flavor-violating two-Higgs-doublet models
• Validity of two Higgs doublet models with a scalar color octet up to a high energy scale
• Has A 125 GeV Pseudoscalar Resonance Been Observed at the LHC?
• Emergent two-Higgs doublet models