Title: Observation of proton radioactivity of the (21(+)) high-spin isomer in Ag-94
Authors: Mukha, Ivan ×
Roeckl, E
Doring, J
Batist, L
Blazhev, A
Grawe, H
Hoffman, CR
Huyse, Marc
Janas, Z
Kirchner, R
La Commara, M
Mazzocchi, C
Plettner, C
Tabor, SL
Van Duppen, Piet
Wiedeking, M #
Issue Date: Jul-2005
Publisher: American physical soc
Series Title: Physical Review Letters vol:95 issue:2
Article number: 022501
Abstract: We have observed direct one-proton decay of the (21(+)) isomer in the N=Z nuclide Ag-94 into high-spin states in Pd-93 by detecting protons in coincidence with gamma-gamma correlations and applying gamma gates based on known Pd-93 levels. Two decay branches have been identified, with proton energies of 0.79(3) and 1.01(3) MeV and branching ratios of 1.9(5)% and 2.2(4)%, respectively. The corresponding partial half-life values are 21(6) and 18(4) s. The Q value of the direct proton decay of the (21(+)) isomer was found to be 5.78(3) MeV. The very small reduced widths of the observed proton decays might reflect dominating collective configurations in the (21(+)) isomer, and the fine structure of the proton spectrum might indicate a strong deformation of this state.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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