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核物质中△（1232）粒子的介质效应
  • ISSN号：1007-4627
  • 期刊名称：《原子核物理评论》
  • 时间：0
  • 分类：O572.34[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]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]中国科学院研究生院,北京100049
  • 相关基金：中国科学院知识创新工程重点方向性项目（KJCX2-SW-No16,KJCX3-SYW-No2）;国家自然科学基金资助项目（10435080,10575123,10710172）.
作者： 李永青[1,3], 李希国[1,2]
关键词： △粒子, 衰变宽度, 有效质量, 手征有效场论, △（1232） , decay width, effective mass, chiral effective field theory
中文摘要：

利用手征有效场论，通过对核物质中核子传播子的修正，研究了核物质中的△（1232）粒子的有效质量和衰变宽度。发现△（1232）粒子的有效质量随核物质密度的增加而减小，而衰变宽度随核物质密度增加而增加；△（1232）粒子衰变宽度的变化主要取决于核子有效质量及△（1232）粒子有效质量的变化。

英文摘要：

Based on the chiral effective field theory （CHEFT）, we study the effective mass and decay width of △（1232） in the nuclear matter with the modified nucleon propagator. We find that the effective mass of △（1232） decreases, while the decay width of △（1232） increases with increasing the density of nuclear matter. And the decay width of △（1232） mainly depends on the effective masses of nucleon and △（1232）.

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Gravitational Corrections to Energy-Levels of a Hydrogen Atom
Gravitational Corrections to Energy-Levels of a Hydrogen Atom
Angular Momentum of Vortex in Jackiw-Pi Model
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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