High precision branching ratio measurement for the superallowed β decay of 74Rb: A prerequisite for exacting tests of the standard model
Document Type
Article
Publication Date
5-1-2003
Abstract
Nonanalog Fermi and Gamow-Teller branches in the superallowed β decay of 74Rb have been investigated using γ-ray and conversion-electron spectroscopy. Nine observed transitions, in conjunction with a recent shell model calculation, determine the branching ratio of the analog transition to be 99.5(1)%. The experimental upper limits for the Fermi decay to the 02+ and (03+) levels are in agreement with recent theoretical predictions. The QEC value for the 74Rb β decay is predicted to be 10405(9) keV.
Publication Source (Journal or Book title)
Physical Review C - Nuclear Physics
First Page
513051
Last Page
513055
Recommended Citation
Piechaczek, A., Zganjar, E., Ball, G., Bricault, P., D'Auria, J., Hardy, J., Hodgson, D., Iacob, V., Klages, P., Kulp, W., Leslie, J., Lipoglavsek, M., Macdonald, J., Mak, H., Moltz, D., Savard, G., Von Schwarzenberg, J., Svensson, C., Towner, I., & Wood, J. (2003). High precision branching ratio measurement for the superallowed β decay of 74Rb: A prerequisite for exacting tests of the standard model. Physical Review C - Nuclear Physics, 67 (5), 513051-513055. Retrieved from https://repository.lsu.edu/physics_astronomy_pubs/6137