Fine structure in the α decay of 156Lu and 158Ta
Parr, E., Page, R. D., Joss, D. T., Ali, F. A., Auranen, K., Capponi, L., Grahn, T., Greenlees, P., Henderson, J., Herzan, A., Jakobsson, U., Julin, R., Juutinen, S., Konki, J., Labiche, M., Leino, M., Mason, P. J. R., McPeake, C., O’Donnell, D., . . . Uusitalo, J. (2019). Fine structure in the α decay of 156Lu and 158Ta. Physical Review C, 99(5), Article 054307. https://doi.org/10.1103/PhysRevC.99.054307
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2019Copyright
© 2019 American Physical Society
Fine structure in the α decay of high-spin states in 156Lu and 158Ta has been identified by means of αγ -
coincidence analysis. One new α decay from 156Lu and two from 158Ta were identified, one of which was found
to populate a previously unknown state in 154Lu. The hindrance-factor systematics from all four odd-odd, N = 85
nuclei with known α-decaying, πh11/2 coupled states were reviewed and are discussed. These proved consistent
with the previously assigned (πh11/2νh9/2 )10+ configuration of the α-decaying state in 156Lu, which differs from
the (πh11/2ν f7/2 )9+ assignments in the other three nuclei.
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