Fermiophobic Higgs boson and supersymmetry
arXiv:1204.0080 · doi:10.1103/PhysRevD.86.055014
Abstract
If a light Higgs boson with mass 125 GeV is fermiophobic, or partially fermiophobic, then the MSSM is excluded. The minimal supersymmetric fermiophobic Higgs scenario can naturally be formulated in the context of the NMSSM that admits Z_3 discrete symmetries. In the fermiophobic NMSSM, the SUSY naturalness criteria are relaxed by a factor N_c y_t^4/g^4 \sim 25, removing the little hierarchy problem and allowing sparticle masses to be naturally of order 2--3 TeV. This scale motivates wino or higgsino dark matter. The SUSY flavour and CP problems as well as the constraints on sparticle and Higgs boson masses from b \to sγ, B_s \to μμ and direct LHC searches are relaxed in fermiophobic NMSSM. The price to pay is that a new, yet unknown, mechanism must be introduced to generate fermion masses. We show that in the fermiophobic NMSSM the radiative Higgs boson branchings to γγ, γZ can be modified compared to the fermiophobic and ordinary standard model predictions, and fit present collider data better. Suppression of dark matter scattering off nuclei explains the absence of signal in XENON100.
added discussion on the general tanβ case, same as published version, 26 pages, 6 figures
References in corpus (13)
- Gauge Singlet Scalars as Cold Dark Matter
- Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
- Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV
- Combined search for the Standard Model Higgs boson using up to 4.9 fb-1 of pp collision data at sqrt(s) = 7 TeV with the ATLAS detector at the LHC
- 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
- Strong constraints on the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
- Supersymmetry without a Light Higgs Boson
- Search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->4l with 4.8 fb-1 of pp collision data at sqrt(s) = 7 TeV with ATLAS
- Search for the standard model Higgs boson decaying to a W pair in the fully leptonic final state in pp collisions at sqrt(s) = 7 TeV
- A complete calculation for direct detection of Wino dark matter
- Nonminimal supersymmetric standard model with lepton number violation
- Effective Yukawa couplings and flavor-changing Higgs boson decays at linear colliders