Beta-decay branching ratios of 62Ga

TL;DR

This study measures the beta-decay branching ratios of 62Ga using advanced facilities, providing precise data crucial for testing the Standard Model and refining fundamental weak interaction parameters.

Contribution

The paper presents new, highly precise measurements of 62Ga's beta-decay branching ratios, improving the accuracy of fundamental weak interaction constants.

Findings

Super-allowed branch BR= 99.893(24)% in agreement with previous data

Determined ft value and universal Ft value for 62Ga decay

Enhanced precision in beta-decay measurements of 62Ga

Abstract

Beta-decay branching ratios of 62Ga have been measured at the IGISOL facility of the Accelerator Laboratory of the University of Jyvaskyla. 62Ga is one of the heavier Tz = 0, 0+ -> 0+ beta-emitting nuclides used to determine the vector coupling constant of the weak interaction and the Vud quark-mixing matrix element. For part of the experimental studies presented here, the JYFLTRAP facility has been employed to prepare isotopically pure beams of 62Ga. The branching ratio obtained, BR= 99.893(24)%, for the super-allowed branch is in agreement with previous measurements and allows to determine the ft value and the universal Ft value for the super-allowed beta decay of 62Ga.