Phenomenology of the Utilitarian Supersymmetric Standard Model

Understand

We study the 2010 specific version of the 2002 proposed $U(1)_X$ extension of the supersymmetric standard model, which has no $\mu$ term and conserves baryon number and lepton number separately and automatically.

• We consider in detail the scalar sector as well as the extra $Z_X$ gauge boson, and their interactions with the necessary extra color-triplet particles of this model, which behave as leptoquarks.
• We show how the diphoton excess at 750 GeV, recently observed at the LHC, may be explained within this context.
• We identify a new fermion dark-matter candidate and discuss its properties.