半微观质子光学势

计算物理 ›› 2010, Vol. 27 ›› Issue (5): 745-751.

半微观质子光学势

胡泽华, 孙伟力, 王佳, 张本爱

北京应用物理与计算数学研究所, 北京 100088

收稿日期:2009-09-18 修回日期:2010-01-14 出版日期:2010-09-25 发布日期:2010-09-25
作者简介:胡泽华(1978-),男,安徽风台,助研,博士,从事核反应理论和核参数研究,北京8009信箱16分箱100088.

A Semi-microscopic Proton Optical Potential

HU Zehua, SUN Weili, WANG Jia, ZHANG Benai

Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

Received:2009-09-18 Revised:2010-01-14 Online:2010-09-25 Published:2010-09-25

摘要/Abstract

摘要： 基于原子核壳模型单体密度矩阵的折叠模型计算光学势的实部,配以唯象光学势虚部,构造半微观光学势.通过拟合质子弹性散射实验数据,得到适用于质量数28~90,能量到200 MeV的半微观质子光学势.该光学势用于质子弹性散射计算分析,在参数大为减少的情况下,计算得到的角分布和分析本领与实验数据的符合程度,总体上好于Koning-Delaroche普适光学势的计算结果.

关键词: 微观光学势, 折叠模型, 壳模型, 质子弹性散射

Abstract: A semi-microscopic proton optical potential with parameters is constructed for analyzing elastic scattering data.It's real part is given by a folding model incorporated with one-body density matrix of shell model with Woods-Saxon potential,and the imaginary part is taken consistently with that of Koning-Delaroche(K-D) global optical potential.Potential parameters are obtained by fitting proton elastic scattering data up to 200 MeV in a range of mass number A=28~90.Compared with measurements of elastic scattering angular distributions and analyzing powers it is overall better than those of K-D global optical potential.

Key words: microscopic optical, potential folding model, shell model, proton elastic scattering

中图分类号:

O571.41⁺6

胡泽华, 孙伟力, 王佳, 张本爱. 半微观质子光学势[J]. 计算物理, 2010, 27(5): 745-751.

HU Zehua, SUN Weili, WANG Jia, ZHANG Benai. A Semi-microscopic Proton Optical Potential[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2010, 27(5): 745-751.

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