# Quasistable charginos in ultraperipheral proton-proton collisions at the LHC

## TL;DR

This paper proposes a model-independent method to detect charged long-lived particles in ultraperipheral proton-proton collisions at the LHC by utilizing forward detectors to improve event reconstruction and background suppression.

## Contribution

It introduces a novel approach that combines forward detector data with central detector measurements to enhance detection of long-lived charged particles in ultraperipheral collisions.

## Key findings

- Complete event kinematics can be reconstructed using forward detectors.
- Background noise, including pile-up, is significantly reduced.
- Method improves detection sensitivity for long-lived charged particles.

## Abstract

We propose a model-independent approach for the search of charged long-lived particles produced in ultraperipheral collisions at the LHC. The main idea is to improve event reconstruction at ATLAS and CMS with the help of their forward detectors. Detection of both scattered protons in forward detectors allows complete recovery of event kinematics. Though this requirement reduces the number of events, it greatly suppresses the background, including the large background from the pile-up.