Comment on "Precise half-life values for two-neutrino double beta decay"

TL;DR

This paper reanalyzes tellurium data for two-neutrino double beta decay, providing revised half-life values that support an energy-dependent decay transition trend consistent with the two-nucleon mechanism.

Contribution

It offers a more accurate reanalysis of tellurium decay data, challenging previous incomplete results and supporting a specific energy dependence in the decay mechanism.

Findings

Higher half-life value for $^{128}$Te in 2$ u$-decay

Revised ratio of $^{128}$Te to $^{130}$Te half-lives

Supports the $T^{2 u}_{1/2} ext{~} rac{1}{E^{8}}$ energy trend

Abstract

The results by A.S. Barabash [Phys. Rev. {\bf C 81}, 035501 (2010)] are shown to be incomplete. Tellurium data sets were reanalyzed using the best practices of ENSDF evaluations. Present analysis indicates much higher value for the 2$\nu$-mode half-life time in $^{128}$Te and the corresponding ratio of $^{128,130}$Te half-lives. These values imply the $T^{2 \nu}_{1/2}$ $\sim$ $\frac{1}{E^{8}}$ $\beta\beta$-decay transition energy trend that is consistent with the two-nucleon mechanism of $\beta\beta$(2$\nu$)-decay.