Singlet superfield extension of the minimal supersymmetric standard model with Peccei-Quinn symmetry and a light pseudoscalar Higgs boson at the LHC

Abstract

Motivated by the mu-problem and the axion solution to the strong CP-problem, we extend the MSSM with one more chiral singlet field $X_e$. The underlying PQ-symmetry allows only one more term $X_e{H}_u{H}_d$ in the superpotential. The spectrum of the Higgs system includes a light pseudoscalar $a_X$ (in addition to the standard CP-even Higgs boson), predominantly decaying to two photons: $a_X\to \gamma \gamma$. Both Higgs bosons might be in the range accessible to current LHC experiments.

5 pages with 3 figures

References in corpus (3)

• 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
• The fine-tuning of the generalised NMSSM
• Search for the standard model Higgs boson in the decay channel H to ZZ to 4 leptons in pp collisions at sqrt(s) = 7 TeV

Cited by in corpus (12)

• Fermi Gamma Ray Line at 130 GeV from Axion-Mediated Dark Matter
• A light NMSSM pseudoscalar Higgs boson at the LHC redux
• 750 GeV Resonance in the Gauged $U(1{)}^{\prime }$-Extended MSSM
• Singlet Extension of the MSSM for 125 GeV Higgs Mass with the Least Tuning
• Diphoton Signal of light pseudoscalar in NMSSM at the LHC
• Peccei-Quinn NMSSM in the light of 125 GeV Higgs
• Detection prospects of light NMSSM Higgs pseudoscalar via cascades of heavier scalars from vector boson fusion and Higgs-strahlung
• Higgs Mixing in the NMSSM and Light Higgsinos
• Relaxing the Landau-pole constraint in the NMSSM with the Abelian gauge symmetries
• Peccei-Quinn violating minimal supergravity and a 126 GeV Higgs
• Peccei-Quinn invariant singlet extended SUSY with anomalous U(1) gauge symmetry
• Higgs-bosons couplings to quarks and leptons in the supersymmetric Standard Model with a gauge singlet