Probing Radiative Neutrino Mass Models with Dilepton Events at the LHC

TL;DR

This paper explores how certain neutrino mass models involving lepton flavor violation can be tested at the LHC by analyzing dilepton events, demonstrating potential detectability of charged scalars at 14 TeV.

Contribution

It introduces a method using $M_{T2}$ cuts to effectively suppress background and probe charged scalars in radiative neutrino mass models at the LHC.

Findings

Charged scalars could be detected at 14 TeV LHC.

$M_{T2}$ cuts significantly reduce Standard Model background.

Potential for probing neutrino mass models via dilepton events.

Abstract

In this work, we investigate the possibility of probing a class of neutrino mass models at the LHC proton-proton collisions with 8 and 14 TeV energies. The existence of lepton flavor violating interactions for a singlet charged scalar, $S^{\pm}$, that couples to the leptons could induce many processes such as $pp\rightarrow\ell_{\alpha}^{\pm}\ell_{\beta}^{\mp}+\slashed E $. Using the processes with $\ell_{\alpha}\ell_{\beta}=ee,e\mu,\mu\mu$, we found that an inclusive cut on the $M_{T2}$ event variable is vital in our analysis and leads to an effective suppression of the large Standard Model background. Our results show possible detectability of the charged scalars effect, especially at the $\sqrt{s}= 14~\text{TeV}$.