Dark matter in new regions of the NMSSM with a 125 GeV Higgs

ORAL

Abstract

The large higgs mass and the null results of the searches for supersymmetric particles at the LHC, are more easily accomodated in non-minimal extensions of the Standard Model, such as the NMSSM. We outline the dark matter properties in a very interesting region of the NMSSM, where the large $\sim 125$ GeV higgs mass is the result of mixings between the SM-like higgs and the singlet higgs. At variance with the usual large $\lambda$ NMSSM, the higgs sector is weakly self-coupled, and the reduced higgsino/singlino coupling assists in attaining the observed relic abundance from thermal decoupling.

Authors

  • Augusto Medeiros da Rosa

    Washington University in Saint Louis

  • Francesc Ferrer

    Washington University in Saint Louis

  • Roberto Franceschini

    CERN