Search for neutrinoless double beta decay with NEMO 3 experiment

TL;DR

The NEMO 3 experiment searches for neutrinoless double beta decay to determine if neutrinos are Majorana particles, setting new limits on decay half-lives and neutrino masses based on data collected since 2003.

Contribution

This paper reports the first comprehensive search for neutrinoless double beta decay with NEMO 3, providing new experimental limits and measurements for multiple isotopes.

Findings

No evidence of neutrinoless double beta decay was observed.

Half-lives of two neutrino beta decay were measured for seven isotopes.

Limits on Majorana effective neutrino masses were established.

Abstract

NEMO 3 experiment is designed to search for neutrinoless double beta decay. It is located in the Modane Underground Laboratory (LSM) and has been taking data since February 2003. The half- lives of two neutrino beta decay have been measured for seven isotopes. No evidence of neutrinoless double beta decay has been found. The limits on both the half-lives of the neutrinoless double beta decay and the corresponding Majorana effective masses are derived