1. Energy of the superallowed β decay of38Km
- Author
-
P. A. Amundsen, P. D. Harty, N. S. Bowden, and P. H. Barker
- Subjects
Physics ,Nuclear and High Energy Physics ,Double beta decay ,Atomic physics ,Threshold energy ,Energy (signal processing) - Abstract
The threshold energy of the ${}^{38}\mathrm{Ar}{(p,n)}^{38}{\mathrm{K}}^{m}$ reaction has been measured using solid ${}^{38}\mathrm{Ar}$ targets and has been found to be 7008.52(12) keV, with a 1 V standard as reference. This is in agreement with, but more precise than, the accepted value. The average gives a $Q$ value for the ${}^{38}{\mathrm{K}}^{m}$ superallowed positron decay of 6044.34(12) keV and an ft value of 3049.4(21) s. To improve this last, the discord in the measured ${}^{38}{\mathrm{K}}^{m}$ halflives should be resolved.
- Published
- 1998