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β-delayed proton decay of 69Kr

X. J. Xu, W. X. Huang, R. C. Ma, Z. D. Gu, Y. F. Yang, Y. Y. Wang, C. F. Dong, and L. L. Xu
Phys. Rev. C 55, R553(R) – Published 1 February 1997
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Abstract

The nuclide 69Kr with Tz=3/2, A=4n+1 produced in the 40Ca(32S,3n) reaction has been observed via β-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 first time, corresponding to decay of the T=3/2 isobaric analog state in 69Br to the ground state of 68Se. Combining this result with a Coulomb displacement energy calculation yields a mass excess for 69Kr of 32.15±0.30 MeV. The partial decay scheme of 69Kr is proposed.

  • Received 4 September 1996

DOI:https://doi.org/10.1103/PhysRevC.55.R553

©1997 American Physical Society

Authors & Affiliations

X. J. Xu, W. X. Huang, R. C. Ma, Z. D. Gu, Y. F. Yang, Y. Y. Wang, C. F. Dong, and L. L. Xu

  • Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, Gansu 730000, China

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Vol. 55, Iss. 2 — February 1997

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