{beta}-delayed proton decay of {sup 69}Kr
- Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, Gansu 730000 (China)
The nuclide {sup 69}Kr with T{sub z}={minus}3/2, A=4n+1 produced in the {sup 40}Ca({sup 32}S,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{plus_minus}0.05 MeV with half-life of 32{plus_minus}10 ms was observed for the first time, corresponding to decay of the T=3/2 isobaric analog state in {sup 69}Br to the ground state of {sup 68}Se. Combining this result with a Coulomb displacement energy calculation yields a mass excess for {sup 69}Kr of {minus}32.15{plus_minus}0.30 MeV. The partial decay scheme of {sup 69}Kr is proposed. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 450522
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 55; ISSN PRVCAN; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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