Single superparticle production via gamma gamma collision with explicit R-parity violation

We study the single production of scalar neutrinos or charginos via gamma g amma collision in an R-parity (R-p) violating supersymmetric model. It may be possible to detect a sneutrino or a chargino at a Linear Collider (LC) i n gamma gamma operation mode, as a test of supersymmetry and R-p-violation. Because of the clean background in LC. stringent constraints on R-p violat ing parameters can be obtained even if the process cannot be observed at th e future Linear Collider. (C) 2001 Published by Elsevier Science B.V.