Speaker
Ana Teixeira
(LPT Orsay)
Description
We present constrained and semi-constrained versions of the
next-to-minimal supersymmetric extension of the Standard Model
(NMSSM). The addition of a singlet Higgs superfield to the two doublet superfields that are present in the MSSM leads to a richer Higgs and neutralino spectrum, and allows for many interesting phenomena that are are not present in the MSSM. In
particular, light Higgs particles are allowed by current
constraints and could appear as decay products of the heavier Higgs states, rendering their search rather difficult at the LHC. We propose benchmark scenarios which address the new
phenomenological features, consistent with present constraints from colliders and from WMAP on the dark matter relic density, and with (semi--)universal soft terms at the GUT scale. A brief survey of the search strategies for these states at the LHC
is also given.
