Search for R-Parity Violating Decays of tau Sneutrinos to e mu, mu tau, and e tau Pairs in p anti-p Collisions at s**(1/2)=1.96 TeV

We present a search for tau sneutrino production using the Tevatron p anti-p collision data collected with the CDF II detector and corresponding to an integrated luminosity of 1 fb-1. We focus on the scenarios predicted by the R-parity violating (RPV) supersymmetric models in which tau sneutrinos decay to two charged leptons of different flavor. With the data consistent with the standard model expectations, we set the upper limits on sigma(p anti-p --> nu_tau) x BR(nu_tau --> e mu, mu tau, e tau) and use these results to constrain the RPV couplings as a function of tau sneutrino mass.