Reconciling the light component and all-particle cosmic ray energy spectra at the knee

被引：5
|
作者：
Zhao Yi [1 ,2 ]
Jia Huan-Yu [1 ,2 ]
Zhu Feng-Rong [1 ]
机构：
[1] Southwest Jiaotong Univ, Chengdu 610031, Peoples R China
[2] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
来源：
CHINESE PHYSICS C | 2015年 / 39卷 / 12期
关键词：
energy spectrum; knee; composition; CHEMICAL-COMPOSITION; MAXIMUM ENERGY; HELIUM SPECTRA; ACCELERATION; DIFFUSION; NUCLEI; MODELS; PROTON; SHOCKS; RANGE;
D O I：
10.1088/1674-1137/39/12/125001
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The knee phenomenon of the cosmic ray spectrum, which plays an important role in studying the acceleration mechanism of cosmic rays, is still an unsolved mystery. We try to reconcile the knee spectra measured by ARGO-YBJ and Tibet-III. A simple broken power-law model fails to explain the experimental data. Therefore a modified broken power-law model with non-linear acceleration effects is adopted, which can describe the sharp knee structure. This model predicts that heavy elements dominate at the knee.
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页数：5
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