Gluino Pair Production at Linear e^+e^- Colliders

Abstract

We study the potential of high-energy linear $e^{+}{e}^{-}$ colliders for the production of gluino pairs within the Minimal Supersymmetric Standard Model (MSSM). In this model, the process $e^{+}{e}^{-}\to \tilde{g}\tilde{g}$ is mediated by quark/squark loops, dominantly of the third generation, where the mixing of left- and right-handed states can become large. Taking into account realistic beam polarization effects, photon and $Z^0$-boson exchange, and current mass exclusion limits, we scan the MSSM parameter space for various $e^{+}{e}^{-}$ center-of-mass energies to determine the regions, where gluino production should be visible.

Comments: 22 pages, 9 figures