10.7 A GeV^(197)Au-Em作用电荷为3≤Z≤9的射弹碎片研究  

Interactions Mean Free Paths of Projectile Fragments with Charges 3≤Z≤9 from ^(197)Au-Emulsion Collisions at 10.7 A GeV

作　　者：王琦[1] 张东海[2] 

机构地区：[1]临汾职业技术学院,山西临汾041004 [2]山西师范大学现代物理研究所,山西临汾041004

出　　处：《太原师范学院学报（自然科学版）》2010年第1期82-84,120,共4页Journal of Taiyuan Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(10475054);教育部科学研究重点基金资助项目(205026)

摘　　要：对10.7 A GeV197Au-Em作用电荷为3≤Z≤9的射弹碎片的整体特征进行了研究.实验结果显示其约化自由程与距扫描起点距离D无关,电荷为3≤Z≤9的射弹碎片平均自由程不存在反常现象.这一结论可以通过I.Otterlund等人提出的检验方法和F-检验得到进一步证实.The interactions mean free paths of projectile fragments from ^197Au-Emulsion collisions at 10.7 A GeV are investigated. It is found that the interaction mean free path of projectile fragments is not dependent on the distance from their production point within experimental errors. No anomalous phenomena exists in mean free paths of projectile fragments. For the projectile fragments with charges 3≤Z≤9,the reduced mean free paths is independent of segments after the point of emission,which can be further testified by the method proposed by I. Otterlunnd and the method of F-testify. No anomalous phenomenon exists in the reduced mean free path of the projectile fragments with charges 3≤Z≤0.

关 键 词：相对论重粒子碰撞 射弹碎片 平均自由程 

分 类 号：O572[理学—粒子物理与原子核物理]