Probing lepton flavor violation signal induced by R-violating minimal supersymmetric standard model at a linear collider

The lepton-flavor violation (LFV) effect at an e+e- linear collider (LC), in the frame of R-parity violating minimal supersymmetric standard model is studied. We take the R-parity violating processes e+e-→e-+μ± as signal, and define the summation of the two processes as 'experiment' observable. We find that the cross-section summation can reach O (101)fb in the parameter space without sneutrino resonance effect(s1/2 ∼ mν-tilde). The summation treatment manifests uniform differential distribution on cos θ, where θ denotes the polar angles of both outgoing e+/e- respectively to incoming electron beam in two signal processes. The uniform feature together with eμ collinearity would help to reduce the SM background dramatically. Consequently we conclude that at a 500 GeV LC with 480 fb-1 annual luminosity, it's either possible to detect the distinctive R-violating LFV eμ signal, or exclude sneutrino to m ν-tilde> 1.1 TeV at 95% CL in the machine's biennial runtime interval. (author)