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Collective And Single-particle Structures In The Neutron-rich Doubly Mid-shell Nucleus 170Dy

Söderström, P.-A., Walker, Philip, Wu, J., Liu, H. L., Regan, Patrick, Watanabe, H., Doornenbal, P., Korkulu, Z., Lee, P., Liu, J. J. , Lorusso, G., Nishimura, S., Phong, V. H., Sumikama, T., Xu, F. R., Yagi, A., Zhang, G. X., Ahn, D. S., Alharbi, T., Baba, H., Browne, F., Bruce, A. M., Carroll, R. J., Chae, K. Y., Dombradi, Zs., Estrade, A., Fukuda, N., Griffin, C., Ideguchi, E., Inabe, N, Isobe, T., Kanaoka, H., Kanaya, S., Kojouharov, I., Kondev, F. G., Kubo, T., Kubono, S., Kurz, N., Kuti, I., Lalkovski, S., Lane, G. J., Lee, E. J., Lee, C. S., G. Lotay, G., Moon, C.-B., Nishizuka, I., Nita, C. R., Odahara, A., Patel, Z., Podolyak, Zsolt, Roberts, O. J., Sakurai, H., Schaffner, H., Shand, C. M., Suzuki, H., Takeda, H., Terashima, S., Vajta, Zs., Valiente-Dòbon, J. J. and Xui, Z. Y. (2016) Collective And Single-particle Structures In The Neutron-rich Doubly Mid-shell Nucleus 170Dy In: The 26th International Nuclear Physics Conference (INPC2016), 11-16 Sep 2016, Adelaide, Australia.

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Abstract

One of the most successful descriptions of the structure of atomic nuclei is the spherical shell model. It, however, becomes impractical when moving away from closed-shell nuclei. Instead, it is the interplay between the macroscopic shape degrees of freedom and the microscopic nature of the underlying single-particle structure in a deformed basis that determines the nuclear structure. Being the heaviest nucleus precisely in the middle of, known, closed proton and neutron shells, 170Dy has become a central calibration point for tests of collective models of nuclear physics. However, besides one candidate transition from a previous experiment in Legnaro, Italy, no experimental information is available for this nucleus. Using the EURICA setup at RIKEN, which couples the worlds highest intensity in-flight fission facility with a high-efficiency HPGe array, an experiment in November 2014 produced 170Dy nuclei by in-flight fission of a 238U beam. The results from this experiment provide a wealth of information on this elusive nucleus, including the evolution of quadrupole collectivity, rigidity and higher order deformations, as well as the long sought for isomeric K = 6+ state, predicted to be exceptionally pure at mid-shell. These results provide us with a rich level scheme for discussing both single-particle and collective structures at mid-shell.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Söderström, P.-A.UNSPECIFIEDUNSPECIFIED
Walker, PhilipP.Walker@surrey.ac.ukUNSPECIFIED
Wu, J.UNSPECIFIEDUNSPECIFIED
Liu, H. L.UNSPECIFIEDUNSPECIFIED
Regan, PatrickP.Regan@surrey.ac.ukUNSPECIFIED
Watanabe, H.UNSPECIFIEDUNSPECIFIED
Doornenbal, P.UNSPECIFIEDUNSPECIFIED
Korkulu, Z.UNSPECIFIEDUNSPECIFIED
Lee, P.UNSPECIFIEDUNSPECIFIED
Liu, J. J.UNSPECIFIEDUNSPECIFIED
Lorusso, G.UNSPECIFIEDUNSPECIFIED
Nishimura, S.UNSPECIFIEDUNSPECIFIED
Phong, V. H.UNSPECIFIEDUNSPECIFIED
Sumikama, T.UNSPECIFIEDUNSPECIFIED
Xu, F. R.UNSPECIFIEDUNSPECIFIED
Yagi, A.UNSPECIFIEDUNSPECIFIED
Zhang, G. X.UNSPECIFIEDUNSPECIFIED
Ahn, D. S.UNSPECIFIEDUNSPECIFIED
Alharbi, T.UNSPECIFIEDUNSPECIFIED
Baba, H.UNSPECIFIEDUNSPECIFIED
Browne, F.UNSPECIFIEDUNSPECIFIED
Bruce, A. M.UNSPECIFIEDUNSPECIFIED
Carroll, R. J.UNSPECIFIEDUNSPECIFIED
Chae, K. Y.UNSPECIFIEDUNSPECIFIED
Dombradi, Zs.UNSPECIFIEDUNSPECIFIED
Estrade, A.UNSPECIFIEDUNSPECIFIED
Fukuda, N.UNSPECIFIEDUNSPECIFIED
Griffin, C.UNSPECIFIEDUNSPECIFIED
Ideguchi, E.UNSPECIFIEDUNSPECIFIED
Inabe, NUNSPECIFIEDUNSPECIFIED
Isobe, T.UNSPECIFIEDUNSPECIFIED
Kanaoka, H.UNSPECIFIEDUNSPECIFIED
Kanaya, S.UNSPECIFIEDUNSPECIFIED
Kojouharov, I.UNSPECIFIEDUNSPECIFIED
Kondev, F. G.UNSPECIFIEDUNSPECIFIED
Kubo, T.UNSPECIFIEDUNSPECIFIED
Kubono, S.UNSPECIFIEDUNSPECIFIED
Kurz, N.UNSPECIFIEDUNSPECIFIED
Kuti, I.UNSPECIFIEDUNSPECIFIED
Lalkovski, S.UNSPECIFIEDUNSPECIFIED
Lane, G. J.UNSPECIFIEDUNSPECIFIED
Lee, E. J.UNSPECIFIEDUNSPECIFIED
Lee, C. S.UNSPECIFIEDUNSPECIFIED
G. Lotay, G.UNSPECIFIEDUNSPECIFIED
Moon, C.-B.UNSPECIFIEDUNSPECIFIED
Nishizuka, I.UNSPECIFIEDUNSPECIFIED
Nita, C. R.UNSPECIFIEDUNSPECIFIED
Odahara, A.UNSPECIFIEDUNSPECIFIED
Patel, Z.UNSPECIFIEDUNSPECIFIED
Podolyak, ZsoltZ.Podolyak@surrey.ac.ukUNSPECIFIED
Roberts, O. J.UNSPECIFIEDUNSPECIFIED
Sakurai, H.UNSPECIFIEDUNSPECIFIED
Schaffner, H.UNSPECIFIEDUNSPECIFIED
Shand, C. M.UNSPECIFIEDUNSPECIFIED
Suzuki, H.UNSPECIFIEDUNSPECIFIED
Takeda, H.UNSPECIFIEDUNSPECIFIED
Terashima, S.UNSPECIFIEDUNSPECIFIED
Vajta, Zs.UNSPECIFIEDUNSPECIFIED
Valiente-Dòbon, J. J.UNSPECIFIEDUNSPECIFIED
Xui, Z. Y.UNSPECIFIEDUNSPECIFIED
Date : 11 September 2016
Copyright Disclaimer : © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
Depositing User : Clive Harris
Date Deposited : 08 Jun 2017 15:18
Last Modified : 08 Jun 2017 15:18
URI: http://epubs.surrey.ac.uk/id/eprint/841340

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