Probing the $\mu \nu$SSM with light scalars, pseudoscalars and neutralinos from the decay of a SM-like Higgs boson at the LHC

PRADIPTA GHOSH, DANIEL E. LOPEZ -FOGLIANI, VASILIKI A. MITSOU, C. MUÑOZ, R. RUIZ DE AUSTRI

JOURNAL OF HIGH ENERGY PHYSICS - (Online)

Springer & SISSA

Año: 2014 vol. 1411 p. 102 - 159

1029-8479

The  $mu$-from-$nu$ supersymmetric standard model ($mu nu$SSM) can accommodate the newly discovered Higgs-like scalar boson with a mass around 125 GeV. This model provides a solution to the $mu$-problem and simultaneously reproduces correct neutrino physics by the simple use of right-handed neutrino superfields. These new superfields together with the introduced  R-parity violation can produce novel and characteristic signatures of the $mu nu$SSM at the LHC. We explore the signatures produced through two-body Higgs decays into the new states, provided that these states lie below in the mass spectrum. For example, a pair produced light neutralinos depending on the associated decay length can give rise to displaced multi-leptons/taus/jets/photons with small/moderate missing transverse energy. In the same spirit, a Higgs-like scalar decaying to a pair of scalars/pseudoscalars can produce final states with prompt multi-leptons/taus/jets/photons.