The complex EAS hybrid arrays in Tibet

被引：3
作者：
Huang, J. [1 ]
机构：
[1] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2009年 / 196卷
关键词：
COSMIC-RAY PRIMARIES; ENERGY-SPECTRUM; HELIUM SPECTRA; KNEE; PROTONS; RANGE;
D O I：
10.1016/j.nuclphysbps.2009.09.026
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The Tibet hybrid experiment is an extensive air shower experiment that operated at Yangbajing (E90 degrees 31', N30 degrees 06'; 4300 to above sea level) in Tibet, China, since 1996. This multi-detector system is used to observe air showers of high energy celestial gamma-ray origin and that of nuclear-component origin. Both observations aim to investigate the origin of cosmic rays using different methods. In this paper, based on the energy spectrum of the nuclear component and its chemical composition around the knee, we would like to discuss whether they could be described by the theoretical picture of the diffusive shock acceleration at: SNRs. The consistency of the experimental data with rigidity dependent cutoff spectrum of CRs is examined using Tibet data and KASCADE data. It is found that both experimental data cannot be fully interpreted by such a simple approach. The sharp knee observed by Tibet experiment suggests the contribution of nearby source(s).
引用
收藏
页码：147 / 152
页数：6
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