290 A MeV ^(12)C-AgBr反应靶核碎片发射过程中的两粒子、三粒子短程关联研究  

Two and Three Particle Correlations in Emission of Target Fragments in 290 A MeV ^(12)C-AgBr Interactions

作　　者：郭桂芳[1] 张东海[2] GUO Gui-fang ZHANG Dong-hai(Linfen College of Shanxi Normal University, Linfen 041000, Shanxi, China Institute of Modern Physics, Shanxi Normal University, Linfen 041000, Shanxi, China)

机构地区：[1]山西师范大学临汾学院,山西临汾041000 [2]山西师范大学现代物理研究所,山西临汾041000

出　　处：《山西师范大学学报（自然科学版）》2017年第2期35-42,共8页Journal of Shanxi Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11075100);山西省回国留学人员基金项目(2011-058)

摘　　要：对290 A MeV ^(12)C诱发乳胶重靶核反应靶核蒸发碎片及靶核反冲质子在发射角空间及方位角空间的两粒子、三粒子短程关联进行了实验研究.结果表明290 A MeV ^(12)C诱发乳胶重靶核反应靶核蒸发碎片和靶核反冲质子在发射角空间及方位角空间发射过程中存在两粒子短程关联,在实验误差范围内不存在明显的三粒子短程关联.Two and three particle short-range correlations among the target evaporated fragments as well as target recoiled protons emitted from 290 A MeV 12C induced nuclear emulsion heavy targets are investigated in e- mission angle space and azimuthal angle space, respectively. It is found that there are obvious two particle short- range correlations for both target evaporated fragments and target recoiled protons in emission angle space and azi- muthal angle space, no evidence of three particle short-range correlations is found for both target evaporated frag- ments and target recoiled protons in emission angle space and azimuthal angle space.

关 键 词：靶核蒸发碎片 靶核反冲质子 短程关联 原子核乳胶 

分 类 号：O571.1[理学—粒子物理与原子核物理]