Tests of Isospin Mixing Corrections in Superallowed→Decays
- 18 July 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (3) , 396-399
- https://doi.org/10.1103/physrevlett.73.396
Abstract
Measurements of superallowed → nuclear decays, corrected for radiative and charge-dependent effects, yield fundamental properties of the weak interaction. Model predictions of the necessary corrections exist, but they have never been tested directly by experiment. The present work reports, for the first time, observations of (or limits on) nonanalog → branches in , , , and , and tests of the model predictions for isospin-mixing corrections. The resulting unitarity test of the top row of the Kobayashi-Maskawa matrix is 0.9983 ± 0.0015.
Keywords
This publication has 12 references indexed in Scilit:
- The nuclear-structure dependence of radiative corrections in superallowed Fermi beta-decayNuclear Physics A, 1992
- Energy levels of A = 21–44 nuclei (VII)Nuclear Physics A, 1990
- Nuclear Data Sheets update for A=50Nuclear Data Sheets, 1990
- The vector coupling constant and the Kobayashi-Maskawa matrixNuclear Physics A, 1990
- Superallowed 0+ → 0+ nuclear β-decays: A critical survey with tests of CVC and the standard modelNuclear Physics A, 1990
- Nuclear-structure dependence ofcorrections to Fermi decays and the value of the Kobayashi-Maskawa matrix elementPhysical Review D, 1990
- Corrections to the Fermi Matrix Element for SuperallowedDecayPhysical Review Letters, 1989
- Nuclear data sheets for A = 46Nuclear Data Sheets, 1986
- Radiative corrections toβdecay and the possibility of a fourth generationPhysical Review Letters, 1986
- Analogue symmetry breaking in superallowed fermi β-decayNuclear Physics A, 1977