Right-handed lepton mixings at the LHC

TL;DR

This paper explores how to determine the right-handed leptonic mixing matrix elements at the LHC within a minimal Left-Right symmetric model, using specific processes and decay signatures.

Contribution

It explicitly relates right-handed mixing matrix elements to measurable quantities in Keung-Senjanović process and scalar decays, and shows how to distinguish scalars without polarization measurements.

Findings

Right-handed mixing elements can be extracted from LHC processes.

Left and right doubly charged scalars can be distinguished without polarization data.

The study provides a method to probe leptonic mixing at colliders.

Abstract

We study how the elements of the leptonic right-handed mixing matrix can be determined at the LHC in the minimal Left-Right symmetric extension of the standard model. We do it by explicitly relating them with physical quantities of the Keung-Senjanovi\'c process and the lepton number violating decays of the right doubly charged scalar. We also point out that the left and right doubly charged scalars can be distinguished at the LHC, without measuring the polarization of the final state leptons coming from their decays.