K-mixing in the doubly mid-shell nuclide Dy-170 and the role of vibrational degeneracy

P. -A. Soderstrom; P. M. Walker; J. Wu; H. L. Liu; P. H. Regan; H. Watanabe; P. Doornenbal; Z. Korkulu; P. Lee; J. J. Liu; G. Lorusso; S. Nishimura; V. H. Phong; T. Sumikama; F. R. Xu; A. Yagi; G. X. Zhang; D. S. Ahn; T. Alharbi; H. Baba; F. Browne; A. M. Bruce; R. J. Carroll; K. Y. Chae; Zs Dombradi; A. Estrade; N. Fukuda; C. J. Griffin; E. Ideguchi; N. Inabe; T. Isobe; H. Kanaoka; S. Kanaya; I. Kojouharov; F. G. Kondev; T. Kubo; S. Kubono; N. Kurz; I. Kuti; S. Lalkovski; G. J. Lane; E. J. Lee; C. S. Lee; G. Lotay; C. -B. Moon; I. Nishizuka; C. R. Nita; A. Odahara; Z. Patel; Zs Podolyak; O. J. Roberts; H. Sakurai; H. Schaffner; C. M. Shand; H. Suzuki; H. Takeda; S. Terashima; Zs Vajta; J. J. Valiente-Dobon; Z. Y. Xu

doi:10.1016/j.physletb.2016.09.058

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K-mixing in the doubly mid-shell nuclide Dy-170 and the role of vibrational degeneracy

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K-mixing in the doubly mid-shell nuclide Dy-170 and the role of vibrational degeneracy

P. -A. Soderstrom, P. M. Walker, J. Wu, H. L. Liu, P. H. Regan, H. Watanabe, P. Doornenbal, Z. Korkulu, P. Lee, J. J. Liu, …

Physics letters. B, Vol.762, pp.404-408

10/11/2016

DOI: https://doi.org/10.1016/j.physletb.2016.09.058

Abstract

Astronomy & Astrophysics

Physical Sciences

Physics

Physics, Nuclear

Physics, Particles & Fields

Science & Technology

A detailed study of the structure of the doubly mid-shell nucleus Dy-170(66)104 has been carried out, following isomeric and beta decay. We have measured the yrast band up to the spin-parity J(pi) = 6(+) state, the K = 2 gamma-vibration band up to the 5(+) state, a low-lying negative-parity band based on a 2(-) state that could be a candidate for the lowest energy octupole vibration state within this nucleus, and a candidate for the K-pi = 6(+) two quasi-particle isomer. This state was determined to have an excitation energy of 1643.91(23) keV and a half life of 0.99(4) mu s, with a reduced hindrance for its decay to the ground-state band an order of magnitude lower than predicted by NpNn systematics. This is interpreted as being due to gamma-vibrational mixing from a near degeneracy of the isomer and the 6(+) state of the gamma band. Furthermore, the parent nucleus Tb-170 has been determined to have a half-life of 0.91((+18)(-13)) s with a possible spin-parity of 2(-). (C) 2016 The Author(s). Published by Elsevier B.V.

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Title: K-mixing in the doubly mid-shell nuclide Dy-170 and the role of vibrational degeneracy
Creators - without role: P. -A. Soderstrom - RIKEN Nishina Center
P. M. Walker - University of Surrey
J. Wu - RIKEN Nishina Center
H. L. Liu - Xi'an Jiaotong University
P. H. Regan - University of Surrey
H. Watanabe - Beihang University
P. Doornenbal - RIKEN Nishina Center
Z. Korkulu - Hungarian Academy of Sciences
P. Lee - Chung-Ang University
J. J. Liu - University of Hong Kong
G. Lorusso - National Physical Laboratory
S. Nishimura - RIKEN Nishina Center
V. H. Phong - RIKEN Nishina Center
T. Sumikama - Tohoku University
F. R. Xu - Peking University
A. Yagi - Osaka University
G. X. Zhang - Beihang University
D. S. Ahn - RIKEN Nishina Center
T. Alharbi - Majmaah University
H. Baba - RIKEN Nishina Center
F. Browne - Peking University
A. M. Bruce - Tohoku University
R. J. Carroll - University of Surrey
K. Y. Chae - Sungkyunkwan University
Zs Dombradi - Hungarian Acad Sci, Inst Nucl Res, POB 51, H-4001 Debrecen, Hungary
A. Estrade - University of Edinburgh
N. Fukuda - RIKEN Nishina Center
C. J. Griffin - University of Edinburgh
E. Ideguchi - Chung-Ang University
N. Inabe - RIKEN Nishina Center
T. Isobe - Majmaah University
H. Kanaoka - RIKEN Nishina Center
S. Kanaya - RIKEN Nishina Center
I. Kojouharov - Majmaah University
F. G. Kondev - Argonne Natl Lab, Nucl Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA
T. Kubo - Majmaah University
S. Kubono - RIKEN Nishina Center
N. Kurz - RIKEN Nishina Center
I. Kuti - Majmaah University
S. Lalkovski - RIKEN Nishina Center
G. J. Lane - ACT
E. J. Lee - Chung-Ang University
C. S. Lee - Chung-Ang University
G. Lotay - Beihang University
C. -B. Moon - Hoseo University
I. Nishizuka - Majmaah University
C. R. Nita - University of Brighton
A. Odahara - Osaka University
Z. Patel - Beihang University
Zs Podolyak - University of Surrey
O. J. Roberts - Supreme Council Of Health
H. Sakurai - RIKEN Nishina Center
H. Schaffner - RIKEN Nishina Center
C. M. Shand - University of Surrey
H. Suzuki - RIKEN Nishina Center
H. Takeda - RIKEN Nishina Center
S. Terashima - RIKEN Nishina Center
Zs Vajta - Hungarian Acad Sci, Inst Nucl Res, POB 51, H-4001 Debrecen, Hungary
J. J. Valiente-Dobon - University of Hong Kong
Z. Y. Xu - University of Hong Kong
Publication Details: Physics letters. B, Vol.762, pp.404-408
Publisher: Elsevier
Number of pages: 5
Grant note: NRF-2009-0093817; NRF-2013R1A1A2063017; NRF-2014S1A2A2028636; NRF-2015R1D1A1A01056918 / National Research Foundation of Korea 16F16323; 24105004; 25247045; 26800117 / Grants-in-Aid for Scientific Research; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science; Grants-in-Aid for Scientific Research (KAKENHI) ST/J000132/1; 1137273; ST/G000697/1 NuSTAR; ST/J003468/2; ST/L005840/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) RIKEN Foreign Postdoctoral Researcher Program STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) 25247045 / JSPS KAKENHI; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science; Grants-in-Aid for Scientific Research (KAKENHI) 12/IP/1288 / Science Foundation Ireland UK National Measurements Office DE-AC02-06CH11357 / U.S. Department of Energy, Office of Science, Office of Nuclear Physics; United States Department of Energy (DOE) ST/L005840/1; ST/J003468/2; ST/J000132/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC)
Identifiers: 9918493008331
Academic Unit: Majmaah University
Language: English
Resource Type: Journal article