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High-Spin States in Transuranium Nuclei ^(242,244)Pu

         

摘要

We investigate the structure of yrast bands in the transuranium nuclei ^(242)Pu and ^(244)Pu in the framework of the projected shell model,which is a fully quantum mechanical and microscopic approach.It is found that an appropriate modification of the standard Nilsson spin-orbital parameters in the N =6 proton shell is necessary to correctly describe the high-spin backbending phenomenon in nucleus ^(244)Pu.In order to test whether this modification is correct,the same modified parameters are used to calculate the yrast band of its neighboring isotope ^(242)Pu.It is found that without this modification,a backbending will occur at spin I =20,which is not supported by the experimental data.

著录项

  • 来源
    《中国物理快报:英文版》 |2012年第5期|77-80|共4页
  • 作者单位

    Engineering Research Center of Nuclear Technology Application(Ministry of Education);

    East China Institute of Technology;

    Nanchang 330013;

    School of Physics;

    Suranaree University of Technology;

    Nakhon Ratchasima 30000;

    Thailand;

    International Centre for Materials Physics;

    Chinese Academy of Sciences;

    Shenyang 110016;

    Fundamental Science on Radioactive Geology and Exploration Technology Laboratory;

    East China Institute of Technology;

    Fuzhou 344000;

    State Key Laboratory of Nuclear Physics and Technology;

    Peking University;

    Beijing 100871;

    Thailand Center of Excellence in Physics(ThEP);

    Commission on Higher Education;

    328 Si Ayutthaya Road;

    Ratchathewi;

    Bangkok 10400;

    Thailand;

    China Institute of Atomic Energy;

    P.O.Box 275(10);

    Beijing 102413;

    College of Nuclear Science and Technology;

    Beijing Normal University;

    Beijing 100875;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 原子核物理学、高能物理学;
  • 关键词

    bending; neighboring; bands;

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