Stable Colored Particles R-SUSY Relics or Not?

TL;DR

This paper discusses the potential detection and identification of stable colored particles, such as R-hadrons, at the LHC, focusing on distinguishing their quantum numbers like color charge and spin through experimental signatures.

Contribution

It introduces methods to determine the SU(3)_C charge and spin of long-lived colored particles produced at the LHC, expanding beyond previous R-hadron focused analyses.

Findings

Proposes techniques to measure the color charge of new particles.

Demonstrates how to identify the spin of stable colored states.

Provides strategies for distinguishing different quantum numbers at the LHC.

Abstract

R-hadrons are only one of many possible stable colored states that the LHC might produce. All such particles would provide a spectacular, if somewhat unusual, signal at ATLAS and CMS. Produced in large numbers and leaving a characteristic signature throughout all layers of the detector, including the muon chamber, they could be straightforward to discover even with low luminosity. Though such long lived colored particles (LLCPs) can be realized in many extensions of the Standard Model, most analyses of their phenomenology have focused only on R-hadrons. In order to distinguish among the possibilities, fundamental quantum numbers of the new states must be measured. In this paper, we demonstrate how to identify the $SU(3)_C$ charge and spin of such new particles at the LHC.