Metastable Staus: Reconstructing Non-Prompt Tracks at the ILC with the SiD Detector

TL;DR

This paper investigates reconstructing non-prompt tracks from metastable stau decays at the ILC using the SiD detector, demonstrating high efficiency and low background in the intermediate detector region.

Contribution

It introduces a method for reconstructing kinked tracks from metastable staus decaying between detector layers, enhancing detection capabilities for such particles.

Findings

High reconstruction efficiency for metastable stau decays

Minimal background contamination from Standard Model processes

Effective track multiplicity cuts improve signal detection

Abstract

We have explored the reconstruction of kinks from the decay of metastable staus into a gravitino and a stau lepton in the radial region between the outer layer of the vertex detector and the second central tracking layer. After applying a cut on track multiplicity, we find a high efficiency for such events, with minimal background from Standard Model processes.