Imperfect World of $\beta\beta$-decay Nuclear Data Sets?

TL;DR

This paper reevaluates the precision of double-beta decay half-lives, highlighting deficiencies caused by limited data and emphasizing the need for improved experimental and theoretical efforts for more accurate nuclear data.

Contribution

It provides a critical analysis of current $etaeta$-decay data sets, identifying key limitations and suggesting directions for future research to enhance data accuracy.

Findings

Current data sets have significant uncertainties due to small sample sizes.

Incomplete experimental information affects the reliability of decay half-life estimates.

Enhanced experimental and theoretical work is necessary for more precise nuclear matrix elements.

Abstract

The precision of double-beta ($\beta\beta$) decay experimental half-lives and their uncertainties is reevaluated. A complementary analysis of the decay uncertainties indicates deficiencies due to small size of statistical samples, and incomplete collection of experimental information. Further experimental and theoretical efforts would lead toward more precise values of $\beta\beta$-decay half-lives and nuclear matrix elements.