As. Barabash et Rr. Saakyan, EXPERIMENTAL LIMITS ON 2-BETA(-BETA(+), AND 2K PROCESSES FOR BA-130 AND ON 2K CAPTURE FOR BA-132(), K), Physics of atomic nuclei, 59(2), 1996, pp. 179-184
The results of geochemical experiments with barite are analyzed. The h
alf-life limit (T-1/2 > 4 X 10(21) yr) is obtained for 2K(0v + 2v) cap
ture and for K beta(+)(0v + 2v) and 2 beta(+)(0v + 2v) processes on Ba
-130. Furthermore, the constraint T-1/2 > 3 X 10(20) yr is found for t
he 2K(0v + 2v) capture on Ba-132. The sensitivity of present-day geoch
emical setups is shown to be sufficient for detecting 2K(2v) capture o
n Ba-130.