Search for excited electrons through $\gamma \gamma$ scattering

Abstract

We study the potential of $\gamma \gamma$ option of future high energy linear $e^{+}{e}^{-}$ colliders to search for excited electrons with spin-1/2. We calculate single production cross sections, give the angular distributions and $f-m^{\ast }$ contour plots for $\sqrt{s}=0.5$ TeV and $\sqrt{s}=3$ TeV both using the standard (tree level) couplings and anomal couplings.

Comments: 10 pages, 6 figures, accepted for publication in PRD