动量相关作用在原子核阻止作为探针中的重要性

原子核物理评论 , 2001, 18(4): 276-281. doi: 10.3969/j.issn.1007-4627.2001.04.015

动量相关作用在原子核阻止作为探针中的重要性

刘建业 ^1, , 郭文军 ^2, , 杨艳芳 ^3, , 左维 ^4, , 李希国 ^5, , 赵强 ^6,

1.中国科学院近代物理研究所,甘肃,兰州,730000;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

2.中国科学院近代物理研究所,甘肃,兰州,730000

3.中国科学院近代物理研究所,甘肃,兰州,730000

4.中国科学院近代物理研究所,甘肃,兰州,730000;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

5.中国科学院近代物理研究所,甘肃,兰州,730000;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

6.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

基金项目: 国家自然科学基金(10004012,19847002,KJ951-A1-410) 中国科学院科研项目国家重点基础研究发展计划(973计划)(G2000077400) 中国科学院"百人计划"

关键词：原子核阻止 , 同位旋效应 , 对称势 , 重离子碰撞 , 探针

Importance of Momentum Dependence Interaction on Nuclear Stopping as a Probe

最近的研究工作表明原子核阻止强烈地依赖于两核子碰撞截面而较弱的依赖同位旋相关的平均场(对称势). 故原子核阻止可以作为提取介质中同位旋相关核子-核子碰撞截面的探针. 详细的计算表明动量相关作用在提高原子核阻止对两体碰撞的敏感性和减弱对称对称势的敏感性中起了重要作用.

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