Antimagnetic rotation in 108,110In with tilted axis cranking relativistic mean-field approach

  • Based on tilted axis cranking relativistic mean-field theory within point-coupling interaction PC-PK1, the rotational structure and the characteristic features of antimagnetic rotation for ΔI=2 bands in 108,110In are studied. Tilted axis cranking relativistic mean-field calculations reproduce the experimental energy spectrum well and are in agreement with the experimental I~ω plot, although the calculated spin overestimates the experimental values. In addition, the two-shears-like mechanism in candidate antimagnetic rotation bands is clearly illustrated and the contributions from two-shears-like orbits, neutron (gd) orbits above Z=50 shell and Z=50,N=50 core are investigated microscopically. The predicted B(E2), dynamic moment of inertia ℑ(2), deformation parameters β and γ, and ℑ(2)/B(E2) ratios in tilted axis cranking relativistic mean-field calculations are discussed and the characteristic features of antimagnetic rotation for the bands before and after alignment are shown.
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Wu-Ji Sun, Hai-Dan Xu, Jian Li, Yong-Hao Liu, Ke-Yan Ma, Dong Yang, Jing-Bing Lu and Ying-Jun Ma. Antimagnetic rotation in 108,110In with tilted axis cranking relativistic mean-field approach[J]. Chinese Physics C, 2016, 40(8): 084101. doi: 10.1088/1674-1137/40/8/084101
Wu-Ji Sun, Hai-Dan Xu, Jian Li, Yong-Hao Liu, Ke-Yan Ma, Dong Yang, Jing-Bing Lu and Ying-Jun Ma. Antimagnetic rotation in 108,110In with tilted axis cranking relativistic mean-field approach[J]. Chinese Physics C, 2016, 40(8): 084101.  doi: 10.1088/1674-1137/40/8/084101 shu
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Received: 2016-02-05
Revised: 2016-04-07
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    Supported by National Natural Science Foundation of China (11205068, 11205069, 11405072, 11475072, 11547308) and China Postdoctoral Science Foundation (2012M520667)

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Antimagnetic rotation in 108,110In with tilted axis cranking relativistic mean-field approach

    Corresponding author: Jian Li,
  • 1. College of Physics, Jilin University, Changchun 130012, China
Fund Project:  Supported by National Natural Science Foundation of China (11205068, 11205069, 11405072, 11475072, 11547308) and China Postdoctoral Science Foundation (2012M520667)

Abstract: Based on tilted axis cranking relativistic mean-field theory within point-coupling interaction PC-PK1, the rotational structure and the characteristic features of antimagnetic rotation for ΔI=2 bands in 108,110In are studied. Tilted axis cranking relativistic mean-field calculations reproduce the experimental energy spectrum well and are in agreement with the experimental I~ω plot, although the calculated spin overestimates the experimental values. In addition, the two-shears-like mechanism in candidate antimagnetic rotation bands is clearly illustrated and the contributions from two-shears-like orbits, neutron (gd) orbits above Z=50 shell and Z=50,N=50 core are investigated microscopically. The predicted B(E2), dynamic moment of inertia ℑ(2), deformation parameters β and γ, and ℑ(2)/B(E2) ratios in tilted axis cranking relativistic mean-field calculations are discussed and the characteristic features of antimagnetic rotation for the bands before and after alignment are shown.

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