Stealth Supersymmetry

Understand

We present a broad class of supersymmetric models that preserve R-parity but lack missing energy signatures.

• These models have new light particles with weak-scale supersymmetric masses that feel SUSY breaking only through couplings to the MSSM.
• This small SUSY breaking leads to nearly degenerate fermion/boson pairs, with small mass splittings and hence small phase space for decays carrying away invisible energy.
• The simplest scenario has low-scale SUSY breaking, with missing energy only from soft gravitinos.