Tests of isospin mixing corrections in superallowed 0(+)-->0(+) beta decays. Academic Article uri icon


  • Measurements of superallowed 0+ 0+ 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 0+ 0+ branches in K38m, V46, Mn50, and Co54, 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. 1994 The American Physical Society.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Hagberg, E., Koslowsky, V. T., Hardy, J. C., Towner, I. S., Hykawy, J. G., Savard, G., & Shinozuka, T.

citation count

  • 49

complete list of authors

  • Hagberg, E||Koslowsky, VT||Hardy, JC||Towner, IS||Hykawy, JG||Savard, G||Shinozuka, T

publication date

  • July 1994