Consensus Report of a Workshop on "Matrix elements for Neutrinoless Double Beta Decay"

TL;DR

This workshop consensus aims to develop a coordinated strategy to reduce uncertainties in nuclear matrix element calculations for neutrinoless double beta decay to improve the reliability of theoretical predictions.

Contribution

It establishes a structured plan for measurements and calculations to achieve a 30% error reduction in nuclear matrix elements for double beta decay.

Findings

Defined a coherent strategy for matrix element reduction

Organized work packages for targeted measurements

Proposed international collaborative efforts

Abstract

This is the consensus of a Workshop on "Matrix elements for Neutrinoless Double Beta Decay" held at the IPPP Durham (UK). The aim of this workshop has been to define a well planned, coherent strategy to reduce the errors on nuclear matrix element calculations for double beta decay to a level of 30% by performing the necessary measurements with currently existing and planned facilities. These measurements should provide reliable input for the theoretical calculations. The outcome of the workshop has been organised in working packages. The consensus might act as a starting point for an international coherent effort to achieve this goal.