Prospects for exploring R-parity-violating SUSY in 0νββ-decay experiments

Under the assumption of nonobservation of neutrinoless nuclear double beta decay (0νββ), constraints on the parameters of the R_p-violating supersymmetry (R_p SUSY) are considered at a given lower bound on the half-life. The SUSY sensitivity of a ββ-decaying isotope and the SUSY reach of a 0νββ experiment as decisive characteristics are introduced. The first provides a physical criterion for selecting the most promising isotopes for SUSY searches, while the second gives a measure of success for a 0νββ experiment in exploring the R_p SUSY parameter space. On this basis, prospects for exploring supersymmetry in various 0νββ experiments are discussed.