Determining Wino Lifetime in Supersymmetric Model at Future 100 TeV pp Colliders

TL;DR

This paper explores how future 100 TeV proton-proton colliders can measure the lifetime of charged Winos in supersymmetric models, focusing on detector capabilities and mass spectrum variations.

Contribution

It proposes a new method to determine charged Wino lifetime using flight length distributions and analyzes the impact of detector design and superparticle mass spectrum.

Findings

Charged Wino lifetime can be measured with high accuracy at future colliders.

Detector layout significantly affects lifetime measurement precision.

Method remains effective across different superparticle mass spectra.

Abstract

We discuss a possibility to measure the lifetime of charged Wino in supersymmetric model at future 100 TeV pp colliders, assuming that (neutral) Wino is the lightest superparticle (LSP). In the Wino LSP scenario, the charged Wino has a lifetime of about 0.2 ns, and its track may be reconstructed in particular by the inner pixel detectors. We show that the lifetime of charged Wino may be measured by using the information about the distribution of the flight lengths of charged Winos. We propose a procedure for the lifetime determination and show how the accuracy changes as we vary the mass spectrum of superparticle. We also discuss the effects of the detector layouts on the lifetime determination.