Detection of long-lived staus and gravitinos at the ILC

TL;DR

This paper explores how future ILC experiments can detect long-lived staus and gravitinos, precisely measure their properties, and access fundamental gravitational physics through their decay processes.

Contribution

It demonstrates the potential of the ILC to measure metastable staus and gravitinos, linking collider data to gravitational coupling and Planck scale insights.

Findings

ILC can detect metastable staus with high precision

Mass and lifetime of staus can be measured accurately

Gravitino mass can be determined from stau decay

Abstract

A study is presented illustrating the excellent potential of future International Linear Collider (ILC) experiments to detect metastable staus $\stau$, measure precisely their mass and lifetime, and to determine the mass of the gravitino $\sG$ from the decay $\stau\to\tau\sG$, thus providing direct access to the gravitational coupling, respectively Planck scale.