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Recoil-decay tagging spectroscopy of 162 74 W 88

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Li, H. J., Cederwall, B., Bäck, T., Qi, C., Doncel, M., Jakobsson, U., Auranen, K., Bönig, S., Drummond, M. C., Grahn, T., Greenlees, P., Herzan, A., Julin, R., Juutinen, S., Konki, J., Kröll, T., Leino, M., McPeake, C., O'Donnell, D., . . . Xiao, Z. G. (2015). Recoil-decay tagging spectroscopy of 162 74 W 88. Physical Review C, 92(1), Article 014326. https://doi.org/10.1103/PhysRevC.92.014326
Published in
Physical Review C
Authors
Li, H. J. |
Cederwall, B. |
Bäck, T. |
Qi, C. |
Doncel, M. |
Jakobsson, Ulrika |
Auranen, Kalle |
Bönig, S. |
Drummond, M. C. |
Grahn, Tuomas |
Greenlees, Paul |
Herzan, Andrej |
Julin, Rauno |
Juutinen, Sakari |
Konki, Joonas |
Kröll, T. |
Leino, Matti |
McPeake, C. |
O'Donnell, D. |
Page, R. D. |
Pakarinen, Janne |
Partanen, Jari |
Peura, Pauli |
Rahkila, Panu |
Ruotsalainen, Panu |
Sandzelius, Mikael |
Sarén, Jan |
Sayğı, B. |
Scholey, Catherine |
Sorri, Juha |
Stolze, Sanna |
Taylor, M. J. |
Thornthwaite, A. |
Uusitalo, Juha |
Xiao, Z. G.
Date
2015
Discipline
KiihdytinlaboratorioAccelerator Laboratory
Copyright
© 2015 American Physical Society. Published in this repository with the kind permission of the publisher.

 
Excited states in the highly neutron-deficient nucleus 162W have been investigated via the 92Mo(78Kr, 2α) 162W reaction. Prompt γ rays were detected by the JUROGAM II high-purity germanium detector array and the recoiling fusion-evaporation products were separated by the recoil ion transport unit (RITU) gas-filled recoil separator and identified with the gamma recoil electron alpha tagging (GREAT) spectrometer at the focal plane of RITU. γ rays from 162W were identified uniquely using mother-daughter and mother-daughter-granddaughter α-decay correlations. The observation of a rotational-like ground-state band is interpreted within the framework of total Routhian surface (TRS) calculations, which suggest an axially symmetric ground-state shape with a γ -soft minimum at β2 ≈ 0.15. Quasiparticle alignment effects are discussed based on cranked shell model calculations. New measurements of the 162W ground-state α-decay energy and half-life were also performed. The observed α-decay energy agrees with previous measurements. The half-life of 162W was determined to be t1/2 = 990(30) ms. This value deviates significantly from the currently adopted value of t1/2 = 1360(70) ms. In addition, the α-decay energy and half-life of 166Os were measured and found to agree with the adopted values. ...
Publisher
American Physical Society
ISSN Search the Publication Forum
0556-2813
Keywords
gamma spectroscopy volframi
DOI
https://doi.org/10.1103/PhysRevC.92.014326
URI

http://urn.fi/URN:NBN:fi:jyu-201602021386

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/24832618

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