参数化模型的调整和宇宙线超高能强子族事例的特征  

THE ADJUSTMENT OF PARAMETRIZATION MODEL AND THE CHARACTERISTICS OF SUPER HIGH ENERGY FAMILY EVENTS

作　　者：解卫 张学尧 李群 赵 何瑁 曹培园 张乃健 

出　　处：《山东大学学报（理学版）》1994年第4期408-413,共6页Journal of Shandong University(Natural Science)

基　　金：国家自然科学基金;国家教委博士点专项基金;山东省自然科学基金

摘　　要：本文根据ＣＤＦ实验所显示的非弹过程中心赝快度密度随能量的增加呈ｌｎ２ｓ增长的趋势，对参数化模型中的非弹过程赝快度分布以及带电粒子多重数与质心系能量的关系进行了调整．假定原初宇宙线成份以重核为主，应用调整后的模型，对超高能宇宙线粒子在大气中的行为进行了ＭｏｎｔｅＣａｒｌｏ模拟（称为ＮＭＰＩ模型）．将ＮＭＰＩ模型模似结果同甘巴拉山铅乳胶室实验结果作的比较表明，模拟基本能说明实验结果．The inelastic pseudorapidity distribution and the dependence of the average charged particle multiplicity on the CMS energy in the parametrization model have been adjusted according to the recent CDF result. Under the assumption of heavy element dominant primary cosmic composition,we did a systematic simulation to study the behavior of superhigh energy cosmic rays in the atmosphere(denoted as NMPE model). The simulated results were compared with the results of Kanbala emulsion chamber experiment. Good agreement was found

关 键 词：乳胶室 强子族 中心赝快度密度 能谱 

分 类 号：O572.1[理学—粒子物理与原子核物理]