Abstract
The decay of 5.7 h 207Po to levels in 207Bi has been studied using a Ge(Li) detector. Combining the relative gamma-ray intensities with previously established conversion electron intensities, K-conversion coefficients are determined. The multipolarities of 29 transitions are deduced from a comparison with theoretical conversion coefficients, thus establishing the following spins and parities for the excited levels: 669.5 keV ( 11 2 −), 742.6 keV 7 2 −, 892.3 keV ( 9 2 −), 992.3 keV 7 2 −, 1148.3 keV 5 2 −, (1360.4 keV 7 2 −), 1372.4 keV 5 2 −, 1680.0 keV 3 2 −, (1690.6 keV 5 2 −), 1762.7 keV 5 2 −, 1902.0 keV 1 2 +, 2060.0 keV 3 2 +, and 2405.2 keV 5 2 + . A comparison with a recent shell-model calculation shows good agreement for all negative parity levels.
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