Comment on `A collider signature of the supersymmetric golden region'

TL;DR

This paper discusses how measuring Z boson polarization can help differentiate specific supersymmetric decay chains in the MSSM, aiding in identifying the 'golden region' parameter space.

Contribution

It introduces the use of Z polarization measurement as a novel method to distinguish between different supersymmetric decay processes in the MSSM.

Findings

Z polarization measurement effectively differentiates decay chains.

The method improves identification of the 'golden region' in MSSM.

Enhances understanding of supersymmetric particle decays.

Abstract

We show that $Z$ polarization measurement is useful for distinguishing the signal decay chain of the `golden region' in the minimal supersymmetric standard model(MSSM) parameter space, which involves the stop decay of $\tilde t_2 \to \tilde t_1 + Z$, from other decay chains involving the neutralino decay of $\tilde\chi_2^0 \to \tilde\chi_1^0 + Z$ in different MSSM scenarios.