Induced scalar interaction in the analysis of superallowed fermi β transitions

Abstract

Nuclear Structure superallowed Fermi/3 transitions; derivation of the coupling constant for the induced scalar interaction fs from experimental data. Very recent works reported a significant improvement in the consistency of Yt values for superallowed Fermi/3-decays. This fact led us to investigate some aspects which are not usually tackled in a study of this kind of transition. In a recent paper we suggested that an upper limit for the coupling constant fs for the induced scalar interaction can be derived analyzing superallowed Fermi /3-transitions. In the present work we revise and improve the method for the determination of fs. The result obtained, fs/fv = (-0.4 __ 1.4) x 10- 3, agrees with the prediction of the CVC theory.