Chargino Pair Production in $e^+e^-$ Collisions

TL;DR

This paper proposes a method to determine fundamental supersymmetric parameters by analyzing chargino pair production in electron-positron collisions, focusing on cross sections and spin correlations.

Contribution

It introduces a procedure to extract SUSY parameters from measurable quantities in chargino production processes.

Findings

Method to determine SUSY parameters $M_2, ta, aneta$

Analysis of total cross section and spin correlations

Potential to identify lightest observable supersymmetric particles

Abstract

Charginos $\chi_1^\pm$ are expected to be the lightest observable supersymmetric particles in many supersymmetric models. We present a procedure which will allow to determine the chargino mixing angles and, subsequently, the fundamental SUSY parameters $M_2, \mu$ and $\tan\beta$ by measurements of the total cross section and the spin correlations in $e^+e^-$ annihilation to $\chi_1^+ \chi_1^-$ chargino pairs.