  R-parity-violating supersymmetry (with a conserved baryon number B) provides
a framework for particle physics with lepton number (L) violating interactions.
We examine in detail the structure of the most general R-parity-violating
(B-conserving) model of low-energy supersymmetry. We analyze the mixing of
Higgs bosons with sleptons and the mixing of charginos and neutralinos with
charged leptons and neutrinos, respectively. Implications for neutrino and
sneutrino masses and mixing and CP-conserving sneutrino phenomena are
considered. L-violating low-energy supersymmetry can be probed at future
colliders by studying the phenomenology of sneutrinos. Sneutrino-antisneutrino
mass splittings and lifetime differences can provide new opportunities to probe
lepton number violation at colliders.
