Neutrinoless Double Beta Decay Overview

TL;DR

This paper reviews the current status and future prospects of searching for neutrinoless double beta decay, a rare nuclear process that could reveal new physics beyond the Standard Model and clarify neutrino properties.

Contribution

It provides a comprehensive overview of ongoing experimental efforts and discusses potential improvements in sensitivity for detecting neutrinoless double beta decay.

Findings

Current half-life limits exceed 10^{25}-10^{26} years

Experimental sensitivity is expected to improve in the coming years

Observation would indicate violation of fundamental symmetries

Abstract

Neutrinoless Double Beta Decay is a hypothesised nuclear process in which two neutrons simultaneously decay into protons with no neutrino emission. The prized observation of this decay would point to the existence of a process that violates a fundamental symmetry of the Standard Model of Particle Physics, and would allow to establish the nature of neutrinos. Today, the lower limits on the half-life of this process exceed 10$^{25}$-10$^{26}$ yr. I will review the current status of the searches for Double Beta Decay and the perspectives to enhance the experimental sensitivity in the next years.