# Unravelling the sbottom spin at the CERN LHC

## TL;DR

This paper proposes a method to determine the spin of the sbottom particle at the LHC by analyzing angular correlations in its decay products, helping distinguish supersymmetry from extra-dimensional models.

## Contribution

It introduces a novel approach using angular correlations in sbottom pair production to identify the sbottom's spin, differentiating SUSY from extra-dimensional theories.

## Key findings

- Angular correlations can effectively distinguish sbottom spin.
- The method requires sufficient production rate and decay branching ratio.
- Clear signals above background are achievable under certain conditions.

## Abstract

Establishing that a signal of new physics is undoubtly supersymmetric requires not only the discovery of the supersymmetric partners but also probing their spins and couplings. We show that the sbottom spin can be probed at the CERN Large Hadron Collider using only angular correlations in sbottom pair production with subsequent decay of sbottoms into bottom quark plus the lightest neutralino, which allow us to distinguish a universal extra dimensional interpretation with a fermionic heavy bottom quark from supersymmetry with a bosonic bottom squark. We demonstrate that this channel provides a clear indication of the sbottom spin provided the sbottom production rate and branching ratio into bottom quark plus the lightest neutralino are sufficiently large to have a clear signal above Standard Model backgrounds.