高能强子在铁中的衰减  

Attenuation of High Energy Hadrons in Iron

作　　者：任敬儒[1] 陆穗苓[1] 王承瑞[1] 何瑁[1] 张乃健 曹培园[1] 李金玉[1] 王士智 王明星 

机构地区：[1]中国科学院高能物理研究所,山东大学物理系,郑州大学物理系

出　　处：《高能物理与核物理》1996年第5期405-408,共4页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金;国家教委博士点基金

摘　　要：利用强子探测效率高的厚型甘巴拉山铁乳胶室，观测了能量大于４ＴｅＶ强子流的衰减长度．分别对无伴随的单个强子、和３０ＴｅＶ≤Ｅγ＜１００ＴｅＶ的族事例中的强子作了测量。初步结果表明，四种情况的衰减长度是有差异的，对此作了讨论．The attenuation lengths of hadron fluxes with visible energies higher than 4TeV have been observed in thick type iron emulsion chambers exposed at Mt. Kanbala with high detecting efficiency for hadrons.Uncorrelated hadrons as well as hadrons in family events with visible energies of Eγ>500TeV,100TeV≤Eγ≤500TeV and 30TeV≤Eγ<100TeV are measured.Preliminary results indicate that the attenuation lengths of hadrons in iron in these four cases are different.A brief discussion is given.

关 键 词：铁乳胶室 非关联 族中强子 强子衰减长度 

分 类 号：O572.11[理学—粒子物理与原子核物理]