IHEP OpenIR  > 粒子天体物理中心
Primary proton spectrum around the knee observed by the Tibet air-shower experiment
Tibet ASGamma Collaboration
2006
发表期刊ASTROPHYSICS
卷号37期号:10页码:1938-1943
通讯作者Huang, J (reprint author), Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan.
摘要Simultaneous observation of gamma-families and their accompanying air showers was performed at Yangbajing (4300 m above sea level) in Tibet with the emulsion chambers and burst detectors which were linked with the Tibet-II air-shower array. For three years operation, we observed 177 gamma-families (Sigma E-gamma > 20 TeV) accompanying air showers with the size N-e > 2 x 10(5). Using this data and the simulation code CORSIKA, we obtained the primary proton spectrum in the energy range of 10(15)-10(16) eV. The slope of the observed spectrum is steeper than that extrapolated smoothly from the lower energy region below 10(14) eV, irrespective of the interaction models assumed in the simulation. The uncertainty of the absolute flux of protons due to the interaction model dependence involved in the simulation codes is at most 30%, which is much weaker than results of other air-shower experiments. Our experiment shows low intensity of light components (proton and helium) independent of the interaction models suggesting that the main component responsible for making the knee structure of the all-particle spectrum is composed of nuclei heavier than helium. This is the first measurement of the differential energy spectra of primary protons by selecting them event by event at the knee energy region. (c) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.
关键词ELECTROMAGNETIC CASCADE SHOWERS COSMIC-RAY COMPOSITION ENERGY-RANGE HYBRID-EXPERIMENT REGION HELIUM NUCLEI LEAD
学科领域Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
DOI10.1016/j.asr.2005.11.018
收录类别SCI
语种英语
WOS类目Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号WOS:000239306500019
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/212692
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Tibet ASGamma Collaboration. Primary proton spectrum around the knee observed by the Tibet air-shower experiment[J]. ASTROPHYSICS,2006,37(10):1938-1943.
APA Tibet ASGamma Collaboration.(2006).Primary proton spectrum around the knee observed by the Tibet air-shower experiment.ASTROPHYSICS,37(10),1938-1943.
MLA Tibet ASGamma Collaboration."Primary proton spectrum around the knee observed by the Tibet air-shower experiment".ASTROPHYSICS 37.10(2006):1938-1943.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
1987.pdf(161KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Tibet ASGamma Collaboration]的文章
百度学术
百度学术中相似的文章
[Tibet ASGamma Collaboration]的文章
必应学术
必应学术中相似的文章
[Tibet ASGamma Collaboration]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。