R-Parity Violation and Sneutrino Resonances at Muon Colliders

In supersymmetric models with R-parity violating interactions, sneutrinos may be produced as $s$-channel resonances at $\mu^+ \mu^-$ colliders. We demonstrate that, for R-parity violating couplings as low as $10^{-4}$, sneutrinos can be discovered and their couplings measured to high accuracy. The excellent beam energy resolution of muon colliders is found to be especially useful for studying such resonances in certain cases.