Abstract
The decay of 3.0 min143Eu has been investigated by means of a Ge(Li) detector. TheΒ + spectrum obtained with a Si(Li) spectrometer leads to aQ-value of 5100±50 keV. For the first time a decay scheme including levels situated at 107.5, 755.0, 1107.9, 1537.5 and 1912.8 keV has been established. The data are compared to those obtained for the neighbouringN=81141Nd nucleus. Besides, new experimental measurements indicate that the 1345.4 keV level in141Nd has not the odd-parity and would be 5/2+, 7/2+. Hence, the 7/2− state is situated at 1967.4 keV. Those data are in reasonable agreement with intermediate coupling calculations.
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Charvet, A., Chéry, R., Phuoc, D.H. et al. The decay of 3.0 min143Eu and the levels of theN=81143Sm and141Nd nuclei. Z. Physik 267, 355–358 (1974). https://doi.org/10.1007/BF01669966
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DOI: https://doi.org/10.1007/BF01669966