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Chinese Physics C> 2013, Vol. 37> Issue(12) : 124101 DOI: 10.1088/1674-1137/37/12/124101

Description of 150Nd nucleus by a new alternative scheme

  • A new scheme was recently proposed in which the usual SU(3) quadrupole-quadrupole interaction was replaced by an O(6) cubic interaction in the Interacting Boson Model, and also successfully applied to the description of 152Sm for the N=90 rare earth isotones with X(5) symmetry. By using this new scheme, in the present work, we further explore the properties of another candidate of 150Nd for the N=90 with X(5) symmetry. The low-lying energy levels and E2 transition rates are calculated and compared with the experimental data. The results show that the new scheme can also reasonably describe the experimental low-lying spectrum and the intraband and the interband E2 transitions for 150Nd. However, for the low-lying spectrum, the O(6) cubic interaction seems better in describing the energy levels, especially in higher excited states and γ band, yet the 02+ level within the β band is lower than the corresponding experimental value and the U(5)-SU(3) scheme seems better to describe the low-lying levels of β band; and for the B(E2) transition, for the intraband transitions within the ground band and some interband transitions between the β band and the ground band, the results from O(6) cubic interaction are better than those from SU(3) quadrupole-quadrupole interaction, yet of which seems better to describe the intraband E2 transitions within β band. The present work is very meaningful in helping us to understand in depth the new characteristics of symmetry by the higher order O(6) cubic interaction.
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DAI Lian-Rong, ZHONG Wei-Wei, CONG Mei-Ling and WANG Li-Xing. Description of 150Nd nucleus by a new alternative scheme[J]. Chinese Physics C, 2013, 37(12): 124101. doi: 10.1088/1674-1137/37/12/124101
DAI Lian-Rong, ZHONG Wei-Wei, CONG Mei-Ling and WANG Li-Xing. Description of 150Nd nucleus by a new alternative scheme[J]. Chinese Physics C, 2013, 37(12): 124101.  doi: 10.1088/1674-1137/37/12/124101 shu
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Received: 2013-07-09
Revised: 1900-01-01
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Description of 150Nd nucleus by a new alternative scheme

    Corresponding author: DAI Lian-Rong,
  • Received Date: 2013-07-09
  • Accepted Date: 1900-01-01
  • Available Online: 2013-12-05

Abstract: A new scheme was recently proposed in which the usual SU(3) quadrupole-quadrupole interaction was replaced by an O(6) cubic interaction in the Interacting Boson Model, and also successfully applied to the description of 152Sm for the N=90 rare earth isotones with X(5) symmetry. By using this new scheme, in the present work, we further explore the properties of another candidate of 150Nd for the N=90 with X(5) symmetry. The low-lying energy levels and E2 transition rates are calculated and compared with the experimental data. The results show that the new scheme can also reasonably describe the experimental low-lying spectrum and the intraband and the interband E2 transitions for 150Nd. However, for the low-lying spectrum, the O(6) cubic interaction seems better in describing the energy levels, especially in higher excited states and γ band, yet the 02+ level within the β band is lower than the corresponding experimental value and the U(5)-SU(3) scheme seems better to describe the low-lying levels of β band; and for the B(E2) transition, for the intraband transitions within the ground band and some interband transitions between the β band and the ground band, the results from O(6) cubic interaction are better than those from SU(3) quadrupole-quadrupole interaction, yet of which seems better to describe the intraband E2 transitions within β band. The present work is very meaningful in helping us to understand in depth the new characteristics of symmetry by the higher order O(6) cubic interaction.

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