Natural Baryogenesis from Unnatural Supersymmetry

Understand

We demonstrate here that the mini-split version of the Minimal Supersymmetric Standard Model (MSSM) including R-parity violating couplings naturally provides all the necessary ingredients for a novel baryogenesis mechanism.

• The baryogenesis is triggered by the late decay of a TeV scale bino after its thermal freezeout.
• A \mu-term larger than the sfermion masses is necessary for obtaining sufficient baryon asymmetry.
• Two example models of direct baryogenesis and leptogenesis are proposed, with viable parameter spaces presented.