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

TL;DR

This paper explores the potential of future gamma-gamma colliders to detect excited electrons by calculating production rates, angular distributions, and parameter contours at different energies with standard and anomalous couplings.

Contribution

It provides the first detailed analysis of excited electron production in gamma-gamma collisions at future high-energy colliders, including cross sections and angular distributions.

Findings

Single production cross sections are calculated for different energies.

Angular distributions vary with coupling types and energies.

Contour plots illustrate the parameter space sensitivity.

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 $f-m^*$ contour plots for $\sqrt{s}=0.5$ TeV and $\sqrt{s}=3$ TeV both using the standard (tree level) couplings and anomal couplings.