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同位旋效应对N=9同中子素能级间隙的影响
  • ISSN号：1674-1137
  • 期刊名称：《中国物理C：英文版》
  • 时间：0
  • 分类：O571.6[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：[1]南京大学物理系,南京210008, [2]兰州重离子加速器国家实验室原子核理论中心,兰州730000
  • 相关基金：国家自然科学基金（10125521,10535010）和国家重点基础研究发展规划项目（G2000077400）资助
作者： 郭艳青[1], 任中洲[1,2]
关键词： 壳模型, 同位旋效应, 能级反转, 基态性质, shell model, isospin effect, level inversion
中文摘要：

在单粒子壳模型下，研究了N=8及N=9同中子素的基态性质．通过在伍兹-萨克逊势深中引入同位旋依赖项，考虑了同位旋效应对核平均势的影响．理论计算的均方根半径和自旋宇称值与实验结果整体上符合较好，尤其是Ⅳ=9同中子素中的2s1／2与1d5／2中子能级间的能级反转得到了较好的解释．计算结果还显示在^14B和^15C基态中存在单中子晕．

英文摘要：

The ground-state properties of N=8 and N=9 isotones are investigated in the framework of the single-particle shell model. The isospin effect on the average nuclear potential is taken into account by introducing an isospin-dependent term in the depth of the Woods-Saxon potential. The theoretical results of RMS radii and spin-parity values are in agreement with the experimental data. Especially, the level inversion between neutron levels 2s1/2 and 1d5/2 in N=9 isotones is reproduced. A detailed discussion on numerical results is given and one-neutron halos in the ground states of ^14B and ^15C are presented.

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期刊信息
  • 《中国物理C：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院高能物理研究所 中国科学院近代物理研究所
  • 主编：王贻芳
  • 地址：北京市玉泉路19号（乙）
  • 邮编：100049
  • 邮箱：cpc@mail.ihep.ac.cn
  • 电话：010-88235947
  • 国际标准刊号：ISSN：1674-1137
  • 国内统一刊号：ISSN：11-5641/O4
  • 邮发代号:2-522
  • 获奖情况:
  • 2000年获中国科学院优秀期刊评比一等奖,中国期刊方阵“双百”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国剑桥科学文摘,美国科学引文索引（扩展库）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,英国英国皇家化学学会文摘
  • 被引量:189