Abstract: Supersymmetry provides elegant solutions to many of the outstanding issues with the Standard Model, but requires care in suppressing processes that may lead to lepton and baryon number, or R-parity, violation. The extension of a discrete subgroup of gauged baryon minus lepton number (B-L) can naturally explain the existence of R-parity while providing a connection to the neutrino sector.

I will present searches at the ATLAS experiment for new particles whose unique signatures and event combinatorics give us a chance to observe these rare processes, and I will discuss the detector improvements necessary to bring these searches to the high-luminosity Large Hadron Colllider.