Large Hadron Collider probe of supersymmetric neutrinoless double beta decay mechanism

TL;DR

This paper explores how the Large Hadron Collider can distinguish between different mechanisms of neutrinoless double beta decay, particularly focusing on supersymmetric models with lepton number violation, and assesses the potential for observing related signals.

Contribution

It demonstrates that observing single slepton production at the LHC can identify the supersymmetric neutrinoless double beta decay mechanism involving lambda'_111 coupling.

Findings

Potential to observe single slepton production if neutrinoless double beta decay is detected.

Resonant slepton production can differentiate between supersymmetric and other decay mechanisms.

Next-generation experiments could confirm the supersymmetric origin of neutrinoless double beta decay.

Abstract

In the minimal supersymmetric extension to the Standard Model, a non-zero lepton number violating coupling lambda'_111 predicts both neutrinoless double beta decay and resonant single slepton production at the LHC. We show that, in this case, if neutrinoless double beta decay is discovered in the next generation of experiments, there exist good prospects to observe single slepton production at the LHC. Neutrinoless double beta decay could otherwise result from a different source (such as a non-zero Majorana neutrino mass). Resonant single slepton production at the LHC can therefore discriminate between the lambda'_111 neutrinoless double beta decay mechanism and others.