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Investigating the large deformation of the 5/2(+) isomeric state in Zn-73: An indicator for triaxiality

Authors :
Yang, X. F.
Tsunoda, Y.
Babcock, C.
Billowes, J.
Bissell, M. L.
Blaum, K.
Cheal, B.
Flanagan, K. T.
Garcia Ruiz, R. F.
Gins, W.
Gorges, C.
Grob, L. K.
Heylen, H.
Kaufmann, S.
Kowalska, M.
Krämer, J.
Malbrunot-Ettenauer, S.
Neugart, R.
Neyens, G.
Nörtershäuser, W.
Otsuka, T.
Papuga, J.
Sánchez, R.
Wraith, C.
Xie, L.
Yordanov, D. T.
Source :
PHYSICAL REVIEW C, Yang, X F, Tsunoda, Y, Babcock, C, Billowes, J, Bissell, M L, Blaum, K, Cheal, B, Flanagan, K T, Garcia Ruiz, R F, Gins, W, Gorges, C, Grob, L K, Heylen, H, Kaufmann, S, Kowalska, M, Krämer, J, Malbrunot-Ettenauer, S, Neugart, R, Neyens, G, Nörtershäuser, W, Otsuka, T, Papuga, J, Sánchez, R, Wraith, C, Xie, L & Yordanov, D T 2018, ' Investigating the large deformation of the 5/2+ isomeric state in Zn 73 : An indicator for triaxiality ', Physical Review C, vol. 97, no. 4, 044324 . https://doi.org/10.1103/PhysRevC.97.044324
Publication Year :
2018

Abstract

Recently reported nuclear spins and moments of neutron-rich Zn isotopes measured at ISOLDE-CERN [C. Wraith et al., Phys. Lett. B 771, 385 (2017)PYLBAJ0370-269310.1016/j.physletb.2017.05.085] show an uncommon behavior of the isomeric state in Zn73. Additional details relating to the measurement and analysis of the Zn73m hyperfine structure are addressed here to further support its spin-parity assignment 5/2+ and to estimate its half-life. A systematic investigation of this 5/2+ isomer indicates that significant collectivity appears due to proton/neutron E2 excitations across the proton Z = 28 and neutron N = 50 shell gaps. This is confirmed by the good agreement of the observed quadrupole moments with large scale Monte Carlo shell model calculations. In addition, potential energy surface calculations in combination with T plots reveal a triaxial shape for this isomeric state.

Subjects

Subjects :
Nuclear Theory
Nuclear Experiment

Details

Language :
English
ISSN :
03702693
Database :
OpenAIRE
Journal :
PHYSICAL REVIEW C, Yang, X F, Tsunoda, Y, Babcock, C, Billowes, J, Bissell, M L, Blaum, K, Cheal, B, Flanagan, K T, Garcia Ruiz, R F, Gins, W, Gorges, C, Grob, L K, Heylen, H, Kaufmann, S, Kowalska, M, Krämer, J, Malbrunot-Ettenauer, S, Neugart, R, Neyens, G, Nörtershäuser, W, Otsuka, T, Papuga, J, Sánchez, R, Wraith, C, Xie, L & Yordanov, D T 2018, ' Investigating the large deformation of the 5/2+ isomeric state in Zn 73 : An indicator for triaxiality ', Physical Review C, vol. 97, no. 4, 044324 . https://doi.org/10.1103/PhysRevC.97.044324
Accession number :
edsair.dedup.wf.001..21cd022c67c9c1f5b05469420610869c

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