Accurate Mass Determinations in Decay Chains with Missing Energy

TL;DR

This paper introduces a new method for accurately determining the mass of dark matter candidates in collider experiments, which is crucial for understanding their role in the universe.

Contribution

It presents a novel procedure for mass determination in decay chains with missing energy, improving accuracy over previous methods.

Findings

Provides a small-error mass determination technique

Applicable to decay chains with missing energy

Enhances understanding of dark matter properties

Abstract

Many beyond the Standard Model theories include a stable dark matter candidate that yields missing / invisible energy in collider detectors. If observed at the Large Hadron Collider, we must determine if its mass and other properties (and those of its partners) predict the correct dark matter relic density. We give a new procedure for determining its mass with small error.