  The fate of R-parity in supersymmetric theories is discussed in detail. We
make a strong case for R-parity violation showing that the simplest theories
based on the local B-L symmetry predict the spontaneous breaking of R-parity at
the SUSY scale. The possible implications for the searches at the Large Hadron
Collider are discussed.

High Energy Physics - Phenomenology;High Energy Physics - Experiment;High Energy Physics - Theory