Fine Structure in the Decay of the Highly Deformed Proton Emitter E[number sign]131u
Journal Article
·
· Physical Review Letters
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- University of Edinburgh, Edinburgh, EH9 3JZ (United Kingdom)
- Department of Chemistry, University of Maryland, College Park, Maryland 20742 (United States)
- Department of Physics, Yale University, New Haven, Connecticut 06511 (United States)
Fine structure in the ground-state proton radioactive decay of highly deformed [sup 131]Eu has been identified. In addition to the previously observed ground-state line, measured here with a proton energy of 932(7) keV, a second proton peak with energy 811(7) keV was observed. We interpret this line as proton decay from the [sup 131]Eu ground state to the first excited 2[sup +] state of the daughter nucleus [sup 130]Sm . Comparing the measured branching ratio with calculations enables the ground-state configuration of [sup 131]Eu to be unambiguously assigned to the 3/2[sup +] [411] Nilsson configuration. [copyright] [ital 1999] [ital The American Physical Society ]
- DOE Contract Number:
- FG02-94ER40834; W-31-109-ENG-38
- OSTI ID:
- 6469971
- Journal Information:
- Physical Review Letters, Vol. 83:6; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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