Heavy selectron production with exotic signature in R-parity breaking SUSY models at eγ colliders

We consider an R-parity breaking SUSY model in which a heavy scalar electron decays into the top quark. As the eγ colliders could be the most suitable device for us to search for heavy selectrons, it is worth studying such an exotic signature of the selectron production at eγ colliders. We found that the selectron with mass about 300 GeV could be searchable at the eγ colliders whose basic ee total energies are 500 GeV.