The semi-constrained NMSSM satisfying bounds from the LHC, LUX and Planck

Ulrich Ellwanger (1) , Cyril Hugonie (2)

1 LPT - Laboratoire de Physique Théorique d'Orsay [Orsay]
2 LUPM - Laboratoire Univers et Particules de Montpellier

We study the parameter space of the semi-constrained NMSSM, compatible with constraints on the Standard Model like Higgs mass and signal rates, constraints from searches for squarks and gluinos, a dark matter relic density compatible with bounds from WMAP/Planck, and direct detection cross sections compatible with constraints from LUX. The remaining parameter space allows for a fine-tuning as low as about 100, an additional lighter Higgs boson in the 60-120 GeV mass range detectable in the diphoton mode or in decays into a pair of lighter CP-odd Higgs bosons, and dominantly singlino like dark matter with a mass down to 1 GeV, but possibly a very small direct detection cross section.

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Ulrich Ellwanger, Cyril Hugonie. The semi-constrained NMSSM satisfying bounds from the LHC, LUX and Planck. Journal of High Energy Physics, 2014, 1408, pp.046. ⟨10.1007/JHEP08(2014)046⟩. ⟨hal-00996033⟩