%0 Journal Article
%T Two-Proton Radioactivity of Kr-67
%A Goigoux, T. et al
%A Algora, A.
%A Guadilla, V.
%A Montaner-Piza, A.
%A Morales, A. I.
%A Orrigo, S. E. A.
%A Rubio, B.
%A Gelletly, W.
%J Physical Review Letters
%D 2016
%V 117
%N 16
%I Amer Physical Soc
%@ 0031-9007
%G English
%F Goigoux_etal2016
%O WOS:000385641900003
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2831), last updated on Fri, 11 Nov 2016 14:46:26 +0000
%X In an experiment with the BigRIPS separator at the RIKEN Nishina Center, we observed two-proton (2p) emission from Kr-67. At the same time, no evidence for 2p emission of Ge-59 and Se-63, two other potential candidates for this exotic radioactivity, could be observed. This observation is in line with Q value predictions which pointed to Kr-67 as being the best new candidate among the three for two-proton radioactivity. Kr-67 is only the fourth 2p ground-state emitter to be observed with a half-life of the order of a few milliseconds. The decay energy was determined to be 1690(17) keV, the 2p emission branching ratio is 37(14)%, and the half-life of Kr-67 is 7.4(30) ms.
%R 10.1103/PhysRevLett.117.162501
%U https://doi.org/10.1103/PhysRevLett.117.162501
%P 162501-6pp