Abstract
Studies of R-parity violating (RPV) supersymmetry typically assume that nucleon stability is protected by approximate baryon number (B) or lepton number (L) conservation. We present a new class of RPV models that violate B and L simultaneously (BLRPV), without inducing rapid nucleon decay. These models feature an approximate Z 2×Z 2×Z 2 flavorsymmetry,whichforbids2-bodynucleondecayandensuresthatflavor antisymmetric LLE c couplings are the only non-negligible L-violating operators. Nucleons are predicted to decay through N → Keμν and n → eμν; the resulting bounds on RPV couplings are rather mild. Novel collider phenomenology arises because the superpartners can decay through both L-violating and B-violating couplings. This can lead to, for example, final states with high jet multiplicity and multiple leptons of different flavor, or a spectrum in which depending on the superpartner, either B or L violating decays dominate. BLRPV can also provide a natural setting for displaced ν → μe decays, which evade many existing collider searches for RPV supersymmetry.
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Faroughy, C., Prabhu, S. & Zheng, B. Simultaneous B and L violation: new signatures from RPV-SUSY. J. High Energ. Phys. 2015, 73 (2015). https://doi.org/10.1007/JHEP06(2015)073
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DOI: https://doi.org/10.1007/JHEP06(2015)073