Fine structure in the α decay of 156Lu and 158Ta

Parr, E.; Page, R. D.; Joss, D. T.; Ali, F. A.; Auranen, Kalle; Capponi, L.; Grahn, Tuomas; Greenlees, Paul; Henderson, J.; Herzan, Andrej; Jakobsson, Ulrika; Julin, Rauno; Juutinen, Sakari; Konki, Joonas; Labiche, M.; Leino, Matti; Mason, P. J. R.; McPeake, C.; O’Donnell, D.; Pakarinen, Janne; Papadakis, Philippos; Partanen, Jari; Peura, Pauli; Rahkila, Panu; Revill, J. P.; Ruotsalainen, Panu; Sandzelius, Mikael; Sarén, Jan; Scholey, Catherine; Simpson, J.; Smith, J. F.; Smolen, M.; Sorri, Juha; Stolze, Sanna; Thornthwaite, A.; Uusitalo, Juha

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Fine structure in the α decay of 156Lu and 158Ta

Abstract

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.

Main Authors

Parr, E. Page, R. D. Joss, D. T. Ali, F. A. Auranen, Kalle Capponi, L. Grahn, Tuomas Greenlees, Paul Henderson, J. Herzan, Andrej Jakobsson, Ulrika Julin, Rauno Juutinen, Sakari Konki, Joonas Labiche, M. Leino, Matti Mason, P. J. R. McPeake, C. O’Donnell, D. Pakarinen, Janne Papadakis, Philippos Partanen, Jari Peura, Pauli Rahkila, Panu Revill, J. P. Ruotsalainen, Panu Sandzelius, Mikael Sarén, Jan Scholey, Catherine Simpson, J. Smith, J. F. Smolen, M. Sorri, Juha Stolze, Sanna Thornthwaite, A. Uusitalo, Juha

Format

Articles Research article

Published

2019

Series

Physical Review C

Subjects

alpha decay

energy levels and level densities

nuclear structure and decays

ydinfysiikka

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/30670670

Publisher

American Physical Society

The permanent address of the publication

https://urn.fi/URN:NBN:fi:jyu-201905142559Use this for linking

Review status

Peer reviewed

ISSN

2469-9985

DOI

https://doi.org/10.1103/PhysRevC.99.054307

Language

English

Published in

Physical Review C

Citation

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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Fine structure in the α decay of 156Lu and 158Ta

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