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Pb附近奇A核同质异能态半衰期的简单规律
  • ISSN号：1007-4627
  • 期刊名称：《原子核物理评论》
  • 时间：0
  • 分类：O571.3[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：[1]南京大学物理学系,江苏南京210008, [2]兰州重离子加速器国家实验室原子核理论中心,甘肃兰州730000, [3]中国科学院卡弗里理论物理研究所,北京100190
  • 相关基金：国家自然科学基金资助项目（10535010 10675090 10775068 10735010）; 教育部博士点基金资助项目（20010284036）; 国家重点研究发展规划资助项目（G2000077400）
作者： 钱以斌[1], 任中洲[1,2,3], 倪冬冬[1]
关键词： 奇A核, IT衰变半衰期, 简单规律, odd A nucleus, IT decay half-life, simple law
中文摘要：

对Pb附近Z=78—82奇A核同质异能态IT衰变（或称为同质异能跃迁包括γ跃迁和内转换）的实验数据进行了系统的分析,发现了奇A核同质异能态IT衰变半衰期的一个简单的规律：同位素链上角动量和宇称相同的同质异能态,半衰期的对数随质量数之间符合二次曲线关系。这说明了IT衰变的半衰期和质量数A之间有着一个指数关系。对这一段同质异能态衰变中跃迁多极性的分析可让人们对有关物理性质有更清楚的认识。对发现的简单规律也给出了可能的物理解释。

英文摘要：

We have investigated and analyzed the experimental data of the odd A nuclear IT （isomeric transiton） decay around Pb.We find a simple law for the IT decay half-lives of the odd A nuclear isomer： there is a parabolic law between the logarithm of the half-lives of the isomer with the same angular momentum and parity along the isotopic chain.This shows there is an exponential law between the half-lives of IT decay and the mass number A. The analysis of the multipolarity of the IT decay could make us have a clear recognition for the physical properties.We have also discussed the possible physics behind this simple law.

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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