Fine structure in the α decay of high-spin isomers in 155Lu and 156Hf
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. (2018). Fine structure in the α decay of high-spin isomers in 155Lu and 156Hf. Physical Review C, 98(2), Article 024321. https://doi.org/10.1103/PhysRevC.98.024321
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Physical Review CDate
2018Copyright
© 2018 American Physical Society
Fine structure in the α decay of high-spin isomers in 155Lu(25/2−) and 156Hf (8+) has been studied for the first
time using αγ -coincidence analysis. Three new α decays from 155Lu(25/2−) and two from 156Hf (8+) have been
identified, populating seniority s > 1 states in the N = 82 nuclei 151Tm and 152Yb, respectively. The reduced
hindrance factors of the α decays support the previous configuration assignments of the populated states. This is
the first observation of states with excitation energy greater than 1.5 MeV being populated following α decay in
nuclei outside of the 208Pb region.
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American Physical SocietyISSN Search the Publication Forum
2469-9985Keywords
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