中高能28^Si碎裂截面研究进展  

Development of Fragmentation Cross Sections of ^(28)Si at Intermediate and High Energies

作　　者：李俊生 党英华 张东海[1] 

机构地区：[1]f山西师范大学现代物理研究所,山西临汾041004

出　　处：《原子核物理评论》2017年第3期545-550,共6页Nuclear Physics Review

基　　金：国家自然科学基金资助项目(11075100,11565001);山西省自然科学基金资助项目(2011011001-2);山西省留学回国人员科研资助项目(2011-058)~~

摘　　要：介绍了利用CR-39探测器对^(28)Si与不同靶作用的电荷变化总截面和分截面的研究进展,给出723AMe V^(28)Si与碳靶作用电荷变化总截面和分截面的最新实验结果。对^(28)Si与靶核反应电荷变化总截面和分截面与束流能量和靶核质量的关系进行了讨论,发现束流能量大于200 AMeV时,中高能^(28)Si与不同靶核反应电荷变化总截面与束流能量无关,分截面表现出明显的奇偶效应,且随靶核质量数的增加而增加。In this paper, the development of the total and partial charge changing cross sections of^（28）Si ions beam in different targets using the CR-39 detectors are reviewed. The newest experimental results of the total and partial charge changing cross sections of^（28）Si in carbon target at 723 AMe V are presented. The dependence of the target mass and the cross sections of^（28）Si including the total and the partial charge changing cross sections are discussed. It is found that the total charge changing cross sections of^（28）Si are independent of the energy when the energy of the ions beam is greater than 200 AMe V. The partial charge changing cross sections show an obviously odd-even effect, and increase with the increasing of the mass number of the target.

关 键 词：碎裂 CR-39 电荷变化总截面 电荷变化分截面 

分 类 号：O571.414[理学—粒子物理与原子核物理]