BETA-DELAYED PROTON DECAY OF KR-69

Authors
XU XJ HUANG WX MA RC GU ZD YANG YF WANG YY DONG CF XU LL
Citation
Xj. Xu et al., BETA-DELAYED PROTON DECAY OF KR-69, Physical review. C. Nuclear physics, 55(2), 1997, pp. 553-556
Citations number
14
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
55
Issue
2
Year of publication
1997
Pages
553 - 556
Database
ISI
SICI code
0556-2813(1997)55:2<553:BPDOK>2.0.ZU;2-D
Abstract
The nuclide Kr-69 With T-z=-3/2, A=4n+1 produced in the Ca-40(S-32,3n) reaction has been observed via beta-delayed proton emission by using pulsed-beam technique. A single proton group at a laboratory energy of 4.07+/-0.05 MeV with half-life of 32+/-10 ms was observed for the fir st time, corresponding to decay of the T=3/2 isobaric analog state in Br-69 to the ground state of Se-68. Combining this result with a Coulo mb displacement energy calculation yields a mass excess for Kr-69 of - 32.15+/-0.30 MeV. The partial decay scheme of Kr-69 is proposed.