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Spectroscopy on the proton drip-line : Probing the structure dependence of isospin nonconserving interactions

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Henderson, J., Jenkins, D. G., Kaneko, K., Ruotsalainen, P., Sarriguren, P., Auranen, K., . . . Zielińska, M. (2014). Spectroscopy on the proton drip-line : Probing the structure dependence of isospin nonconserving interactions. Physical Review C, 90 (5), 051303. doi:10.1103/PhysRevC.90.051303
Published in
Physical Review C
Authors
Henderson, J. |
Jenkins, D. G. |
Kaneko, K. |
Ruotsalainen, Panu |
Sarriguren, P. |
Auranen, Kalle |
Bentley, M. A. |
Davies, P. J. |
Görgen, A. |
Grahn, Tuomas |
Greenlees, Paul |
Hay, A. |
Henry, T. W. |
Herzan, Andrej |
Jakobsson, Ulrika |
Julin, Rauno |
Juutinen, Sakari |
Konki, Joonas |
Leino, Matti |
McPeake, C. |
Milne, S. |
Nichols, A. J. |
Pakarinen, Janne |
Papadakis, Philippos |
Partanen, Jari |
Peura, Pauli |
Rahkila, Panu |
Sahin, E. |
Sandzelius, Mikael |
Sarén, Jan |
Scholey, Catherine |
Siciliano, M. |
Sinclair, L. |
Sorri, Juha |
Stolze, Sanna |
Uusitalo, Juha |
Wadsworth, R. |
Zielińska, M.
Date
2014
Discipline
Fysiikka
Copyright
© 2014 American Physical Society. Published in this repository with the kind permission of the publisher.

 
The recoil-β tagging technique was used to identify transitions associated with the decay of the 2+ and, tentatively, the 4+ excited states in 74Sr. Combining these results with published data for the A = 74 isobars, triplet energy differences (TEDs) have been extracted, the heaviest case for which these values have been evaluated. State-of-the-art shell-model calculations using the JUN45 interaction and incorporating a J = 0 isospin nonconserving (INC) interaction with an isotensor strength of 100 keV can reproduce the trend in the TED data, with particularly good agreement for the 2+ state. This agreement for the TED data taken together with the fact that agreement has also been shown between shell-model calculations with the same strength of INC interaction in the f7/2 shell and recently for A = 66 strongly suggests that such an interaction exists throughout the nuclear chart and cannot have a strong dependence on details of nuclear structure such as which nuclear orbitals are occupied. It also supports the hypothesis that only a J = 0 component of the INC interaction need be included to explain the observed TEDs. ...
Publisher
American Physical Society
ISSN Search the Publication Forum
0556-2813
Keywords
74Sr triplet energy differences isospin nonconserving interaction
DOI
10.1103/PhysRevC.90.051303
URI

http://urn.fi/URN:NBN:fi:jyu-201602021391

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