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Supersymmetric (SUSY) models with R-parity generically predict sparticledecays with invisible neutralinos, which yield distinctive missing energyevents at colliders. Since most LHC searches are designed with thisexpectation, the putative bounds on sparticle masses become considerably weakerif R-parity is violated so that squarks and gluinos decay to jets with largeQCD backgrounds. Here we introduce a scenario in which baryonic R-parityviolation (RPV) arises effectively from soft SUSY-breaking interactions, butleptonic RPV remains accidentally forbidden to evade constraints from protondecay and FCNCs. The model features a global R-symmetry that initially forbidsRPV interactions, a hidden R-breaking sector, and a heavy mediator thatcommunicates this breaking to the visible sector. After R-symmetry breaking,the mediator is integrated out and an effective RPV A-term arises at treelevel; RPV couplings between quarks and squarks arise only at loop level andreceive additional suppression. Although this mediator must be heavy comparedto soft masses, the model introduces no new hierarchy since viable RPV canarise when the mediator mass is near the SUSY breaking scale. In genericregions of parameter space, a light thermally-produced gravitino is stable andcan be a viable dark matter candidate.

Soft RPV Through the Baryon Portal