Symmetry and Mixed Symmetry Band Structures in Low-lying Levels of 76—84Kr Isotopes

  • The level structure of 76—84Kr isotopes is discussed within the framework of Interacting Boson Model (IBM-2). One-phonon mixed symmetry states J+2+ and two-phonon mixed symmetry states J +1+,2+ and 3+ have been identified by analyzing the wave function and M1 transitions. Special attention is paid to the occurrence of 0+2 which is not reproduced well by other calculations. The study of the influence of the [d+d] Lπ·[d+d] Lυ interactions on the nuclear structure of these nuclei are undertaken. The calculated results are compared with available experimental data; the results are in general good agreement.
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Failh H and LONG Gui-Lu. Symmetry and Mixed Symmetry Band Structures in Low-lying Levels of 76—84Kr Isotopes[J]. Chinese Physics C, 2004, 28(7): 717-724.
Failh H and LONG Gui-Lu. Symmetry and Mixed Symmetry Band Structures in Low-lying Levels of 76—84Kr Isotopes[J]. Chinese Physics C, 2004, 28(7): 717-724. shu
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Received: 2003-12-25
Revised: 1900-01-01
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Symmetry and Mixed Symmetry Band Structures in Low-lying Levels of 76—84Kr Isotopes

    Corresponding author: LONG Gui-Lu,
  • Department of Physics,Tsinghua University,Key Laboratory For Quantum Information and Measurements,Beijing 100084,China2 Institute of Theoretical Physics,CAS,Beijing 100080,China3 Center of Nuclear Theory,Lanzhou Heavy Ion Accelerator National Laboratory,Lanzhou 730000,China

Abstract: The level structure of 76—84Kr isotopes is discussed within the framework of Interacting Boson Model (IBM-2). One-phonon mixed symmetry states J+2+ and two-phonon mixed symmetry states J +1+,2+ and 3+ have been identified by analyzing the wave function and M1 transitions. Special attention is paid to the occurrence of 0+2 which is not reproduced well by other calculations. The study of the influence of the [d+d] Lπ·[d+d] Lυ interactions on the nuclear structure of these nuclei are undertaken. The calculated results are compared with available experimental data; the results are in general good agreement.

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