Mirror Symmetry in the $β$ Decay of the $A = 20$ and 25 Systems

Publisher Website

18 May 1970

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 24 (20) , 1134-1136
https://doi.org/10.1103/physrevlett.24.1134

Abstract

The half-life of

F^{20}

has been determined as 11.03±0.06 sec and

β

branches have been measured in the decay of

{Na}^{25}

. By combining with information on

{Na}^{20}

and

{Si}^{25}

it is deduced that for the

A = 20

mirror decays to the

{Ne}^{20}

2^{+}

first-excited state,

\frac{{(ft)}^{+}}{{(ft)}^{-}} = 0.933 \pm 0.032 or 1.062 \pm 0.037

, while in the

A = 25

system

\frac{{(ft)}^{+}}{{(ft)}^{-}} = 1.187 \pm 0.076

for

β

decay to all states below 3 MeV.

Keywords

This publication has 20 references indexed in Scilit:

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