Light charged Higgs at the beginning of the LHC era

Abstract

The terascale will be explored with the start of the LHC. One of the most fundamental questions which we expect to be answered is the root of electroweak symmetry breaking and whether the Higgs mechanism is realized in nature or not. In this context we pose the question if existing experimental data still allow for a light non-minimal Higgs sector. We tackle this question first in the context of the two Higgs doublet model and then we concentrate in two supersymmetric models, the constrained MSSM and the MSSM with non-universal Higgs masses. In both supersymmetric scearios, light pseudoscalar and light charged-Higgs bosons are still viable provided tan beta is large. In this regime, we emphasize the importance of the constraints provided by the decay B to tau nu mediated by the charged-Higgs at tree-level. In addition we comment on generic predictions for hadronic colliders and indirect searches in such scenarios.

28 pages, 9 figures. Final version to be published in JHEP. Added comparison with previous works. Technical details clarified

References in corpus (16)

• Search for Neutral MSSM Higgs Bosons at LEP
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• NNLO QCD corrections to the B -> X_s gamma matrix elements using interpolation in m_c
• Hints of large tan(beta) in flavour physics
• Lepton Flavour Violation from SUSY--GUTs: Where do we stand for MEG, PRISM/PRIME and a Super Flavour factory
• Constraining the Two-Higgs-Doublet-Model parameter space
• Flavour physics at large tan(beta) with a Bino-like LSP
• The Supersymmetric Parameter Space in Light of B-physics Observables and Electroweak Precision Data
• Constraints on B and Higgs Physics in Minimal Low Energy Supersymmetric Models
• Light Higgses at the Tevatron and at the LHC and Observable Dark Matter in SUGRA and D Branes
• Qualitative solution of QCD sum rules
• Light Heavy MSSM Higgs Bosons at Large tan_beta
• Analysis of enhanced tan(beta) corrections in MFV GUT scenarios
• Tree-level unitarity constraints in the 2HDM with CP-violation
• Supersymmetric large tan(beta) corrections to DeltaM_(d,s) and B_(d,s) -> mu+mu- revisited
• Challenges for MSSM Higgs searches at Hadron Colliders

Cited by in corpus (6)

• B -> D tau nu Branching Ratios: Opportunity for Lattice QCD and Hadron Colliders
• Physical parameters and basis transformations in the Two-Higgs-Doublet model
• Decoding the Mechanism for the Origin of Dark Matter in the Early Universe Using LHC Data
• Measuring B -> tau nu and B_c -> tau nu at the Z peak
• Muons from Neutralino Annihilations in the Sun: Flipped SU(5)
• Constraining the Charged Higgs Mass in the MSSM: A Low-Energy Approach