Neutrinoless double-$\beta$ decay in TeV scale Left-Right symmetric models

TL;DR

This paper investigates neutrinoless double beta decay within TeV scale Left-Right symmetric models, analyzing dominant contributions, effects of recent neutrino mixing measurements, and implications for collider experiments.

Contribution

It provides a detailed analysis of neutrinoless double beta decay in TeV scale Left-Right models, including dominant diagrams and the impact of recent neutrino data.

Findings

Identification of dominant decay diagrams at TeV scale

Impact of recent $ heta_{13}$ measurements on effective mass

Predictions for collider-accessible right-handed gauge bosons

Abstract

In this paper we study in detail the neutrinoless double beta decay in left-right symmetric models with right-handed gauge bosons at TeV scale which is within the presently accessible reach of colliders. We discuss the different diagrams that can contribute to this process and identify the dominant ones for the case where the right-handed neutrino is also at the TeV scale. We calculate the contribution to the effective mass governing neutrinoless double beta decay assuming type-I, and type-II dominance and discuss what are the changes in the effective mass due to the additional contributions. We also discuss the effect of the recent Daya-Bay and RENO measurements on $\sin^2\theta_{13}$ on the effective mass in different scenarios.