5 research outputs found
New Limit for the Half-Life of 2K(2neutrino)-Capture Decay Mode of 78Kr
Features of data accumulated at 1817 hours in the experimental search for
2K(2 \nu)-capture decay mode of Kr-78 are discussed. The new limit for this
decay half-life is found to be T_{1/2} > 2.3 *10^{20} yr. (90% C.L.).Comment: 7 pages, 4 figures, submitted to Phys. of Atom. Nuc
Next stage of search for 2K(2)-capture of Kr
A technique to search for 2K-capture of Kr with large low-background
proportional counter filled with an enriched in Kr up to 99.8% sample of
Krypton at a pressure of 4.51 is described in this paper. The results of first
measurements are presented. Analysis of data collected during 159 hours yielded
new limit to the half-life of Kr with regard to 2K-capture
(T yr (90% C.L.)). Sensitivity of the facility to the
process for one year of measurement was evaluated to be
yr (90% C.L.).Comment: 4 pages, 5 figures; talk at the NANP'05 Conference; submitted to
Phys. At. Nuc