The octupole deformation of 143 Ba

Oct 8, 2015
9 pages
Published in:
  • Int.J.Mod.Phys.E 24 (2015) 11, 1550081
  • Published: Oct 8, 2015

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Abstract: (World Scientific)
Based on existence of the octupole deformation in the intrinsic states, the experimentally observed four rotational bands in 143Ba have been well reproduced by the reflection asymmetric shell model (RASM) calculations. Through the analysis of the calculated RASM wave functions, the intrinsic configuration of the observed rotational bands has been assigned as the octupole deformed neutron K = 1/2 orbit, which is just located below the N = 88 shell gap. The calculated results supported the ground state octupole deformation and the purity of the simplex quantum numbers s = ±i in 143Ba. In addition, the calculated B(E1)/B(E2) values are in agreement with experimental data, and further support the octupole deformation in 143Ba.
  • Shell model
  • collective levels
  • electromagnetic transitions
  • 90 ≤ A ≤ 149