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Two-Quasiparticle Bands and Isomers in 98Sr

         

摘要

@@ Rotational bands in neutron-rich 98Sr nucleus have been investigated by measuring high-fold prompt γ-ray coincidence events of the spontaneous fission of 252Cf with the Gammasphere detector array. A deformed K = 3band built on the 1838keV level has been confirmed and extended. Another deformed K = 6 band based on the 2535keV level has been established. Both the bands originate most probably from the v9/2[404] ( )v3/2[411] twoquasiparticle configuration with Ω = |Ω1 - Ω2| and Ω= |Ω1 + Ω2|, respectively. Based on the delay-coincidence measurements, the half-lives for the K = 3 and K = 6 band head levels have been obtained to be 13 ± 3 ns and 4.5 ± 1.0 ns, respectively.

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  • 来源
    《中国物理快报:英文版》 |2004年第11期|2147-2150|共4页
  • 作者单位

    Department of Physics,Tsinghua University,Beijing,100084;

    Department of Physics,Tsinghua University,Beijing,100084;

    Department of Physics,Vanderbilt University,Nashville,Tennessee,37235,USA;

    Department of Physics,Vanderbilt University,Nashville,Tennessee,37235,USA;

    Department of Physics,Vanderbilt University,Nashville,Tennessee,37235,USA;

    Department of Physics,Tsinghua University,Beijing,100084;

    Department of Physics,Tsinghua University,Beijing,100084;

    Department of Physics,Tsinghua University,Beijing,100084;

    Department of Physics,Tsinghua University,Beijing,100084;

    Lawrence Berkeley National Laboratory,Berkeley,California,94720,USA;

    Lawrence Berkeley National Laboratory,Berkeley,California,94720,USA;

    Department of Physics,Vanderbilt University,Nashville,Tennessee,37235,USA;

    Lawrence Berkeley National Laboratory,Berkeley,California,94720,USA;

    Department of Physics,Mississippi State University,Mississippi,39762,USA;

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