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~（139）Pm核中磁转动带的研究
  • ISSN号：1007-4627
  • 期刊名称：《原子核物理评论》
  • 时间：0
  • 分类：O571.2[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：[1]中国科学院近代物理研究所,甘肃兰州730000, [2]中国科学院研究生院,北京100049, [3]中国原子能研究院,北京102413
  • 相关基金：国家重点基础研究发展计划项目（2007CB815005）; 国家自然科学基金资助项目（10825522,10735010,10775158）~~
作者： 张宁涛[1,2], 张玉虎[1], 周小红[1], 柳敏良[1], 郑勇[1], 郭应祥[1], 雷祥国[1], 丁兵[1,2], 胡钧[1], 马飞[1], 陈亮[1,2], 王世陶[1,2], 吴晓光[3], 郑云[3]
关键词： 在束Γ谱学, 扁椭形变, 磁转动, 集体转动, in-beam γ spectroscopy, oblate shape, magnetic rotation, collective rotation
中文摘要：

通过重离子熔合蒸发反应116Cd（27Al,4n）布居了139Pm的高自旋激发态,用12台高纯锗探测器（HpGe）阵列进行了在束γ-γ符合测量。基于γ-γ符合关系及139Pm核已知的能级信息,建立了两条ΔI=1的负宇称带。利用相邻核能级结构的系统性和依据半经典的核子-核子有效作用的理论模型（SPAC）对这两条带能级结构进行了定量计算,认为它们属于磁转动带。

英文摘要：

High-spin states in 139Pm have been studied via the 116Cd（27Al,4n） heavy-ion fusion-evaporation reaction.The γ-γ coincidences were measured with 12 HpGe detectors.Based on γ-γ coincidence relationships and previously known levels in 139Pm,two ΔI=1 negative-parity bands have been established.From the systematic comparison with the neighbouring nuclei and semi-classical effective interaction model（SPAC） calculations,the two bands were suggested as magnetic rotational bands.

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期刊信息
  • 《原子核物理评论》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国科学院近代物理研究所 中国核物理学会
  • 主编：肖国青
  • 地址：兰州市31号信箱
  • 邮编：730000
  • 邮箱：npr@impcas.ac.cn
  • 电话：0931-4969371/4
  • 国际标准刊号：ISSN：1007-4627
  • 国内统一刊号：ISSN：62-1131/O4
  • 邮发代号:54-183
  • 获奖情况:
  • 2009年1月获甘肃省优秀期刊奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,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,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:1602