Nuclear $0\nu2\beta$ decays in $B-L$ symmetric SUSY model and in TeV scale left-right symmetric model

TL;DR

This paper compares the predictions of B-L supersymmetric and TeV-scale left-right symmetric models for neutrinoless double beta decay half-lives, finding that LRSM models have a higher potential for future experimental detection.

Contribution

It provides a detailed calculation of decay half-lives within both models under current experimental constraints, highlighting differences in their detectability.

Findings

LRSM models have greater potential for future detection of $0 u2eta$ decays.

Calculated half-lives for $^{76}$Ge and $^{136}$Xe are provided.

Results suggest LRSM models are more promising for upcoming experiments.

Abstract

In this paper we take B-L supersymmetric standard model (B-LSSM) and TeV scale left-right symmetric model (LRSM) as two representations of the two kinds of new physics models to study the nuclear neutrinoless double beta decays ($0\nu2\beta$) so as to see the senses onto these two kinds of models when the decays are taken into account additionally. Within the parameter spaces allowed by all the exist experimental data, the decay half-life of the nucleus $^{76}$Ge and $^{136}$Xe, $T^{0\nu}_{1/2}$($^{76}$Ge, $^{136}$Xe), is precisely calculated and the results are presented properly. Based on the numerical results, we conclude that the room of LRSM type models for the foreseeable future experimental observations on the decays is greater than that of B-LSSM type models.