Physics Letters B (Mar 2017)

Observation of a novel stapler band in 75As

  • C.G. Li,
  • Q.B. Chen,
  • S.Q. Zhang,
  • C. Xu,
  • H. Hua,
  • X.Q. Li,
  • X.G. Wu,
  • S.P. Hu,
  • J. Meng,
  • F.R. Xu,
  • W.Y. Liang,
  • Z.H. Li,
  • Y.L. Ye,
  • D.X. Jiang,
  • J.J. Sun,
  • R. Han,
  • C.Y. Niu,
  • X.C. Chen,
  • P.J. Li,
  • C.G. Wang,
  • H.Y. Wu,
  • G.S. Li,
  • C.Y. He,
  • Y. Zheng,
  • C.B. Li,
  • Q.M. Chen,
  • J. Zhong,
  • W.K. Zhou

DOI
https://doi.org/10.1016/j.physletb.2016.12.059
Journal volume & issue
Vol. 766, no. C
pp. 107 – 111

Abstract

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The heavy ion fusion–evaporation reaction study for the high-spin spectroscopy of 75As has been performed via the reaction channel 70Zn(9Be, 1p3n)75As at a beam energy of 42 MeV. The collective structure especially a dipole band in 75As is established for the first time. The properties of this dipole band are investigated in terms of the self-consistent tilted axis cranking covariant density functional theory. Based on the theoretical description and the examination of the angular momentum components, this dipole band can be interpreted as a novel stapler band, where the valence neutrons in (1g9/2) orbital rather than the collective core are responsible for the closing of the stapler of angular momentum.

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