Measurement of the cosmic ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite
文献类型：期刊论文
| 作者 | An, Q.1,2; Asfandiyarov, R.3; Azzarello, P.3; Bernardini, P.4,5; Bi, X. J.6,7; Cai, M. S.8,9; Chang, J.8,9; Chen, D. Y.7,8; Chen, H. F.1,2; Chen, J. L.10 |
| 刊名 | SCIENCE ADVANCES
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 5期号:9页码:10 |
| ISSN号 | 2375-2548 |
| DOI | 10.1126/sciadv.aax3793 |
| 通讯作者 | An, Q.() |
| 英文摘要 | The precise measurement of the spectrum of protons, the most abundant component of the cosmic radiation, is necessary to understand the source and acceleration of cosmic rays in the Milky Way. This work reports the measurement of the cosmic ray proton fluxes with kinetic energies from 40 GeV to 100 TeV, with 21/2 years of data recorded by the DArk Matter Particle Explorer (DAMPE). This is the first time that an experiment directly measures the cosmic ray protons up to similar to 100 TeV with high statistics. The measured spectrum confirms the spectral hardening at similar to 300 GeV found by previous experiments and reveals a softening at similar to 13.6 TeV, with the spectral index changing from similar to 2.60 to similar to 2.85. Our result suggests the existence of a new spectral feature of cosmic rays at energies lower than the so-called knee and sheds new light on the origin of Galactic cosmic rays. |
| WOS关键词 | ENERGY ; PAMELA ; CALIBRATION ; NUCLEI |
| 资助项目 | strategic priority science and technology projects in space science of the Chinese Academy of Sciences ; National Key Research and Development Program of China[2016YFA0400200] ; National Natural Science Foundation of China[11525313] ; National Natural Science Foundation of China[11622327] ; National Natural Science Foundation of China[11722328] ; National Natural Science Foundation of China[U1738205] ; National Natural Science Foundation of China[U1738207] ; National Natural Science Foundation of China[U1738208] ; strategic priority science and technology projects of the Chinese Academy of Sciences[XDA15051100] ; 100 Talents Program of Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program ; Swiss National Science Foundation (SNSF), Switzerland ; National Institute for Nuclear Physics (INFN), Italy |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000491128800094 |
| 出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
| 资助机构 | strategic priority science and technology projects in space science of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; strategic priority science and technology projects of the Chinese Academy of Sciences ; 100 Talents Program of Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program ; Swiss National Science Foundation (SNSF), Switzerland ; National Institute for Nuclear Physics (INFN), Italy |
| 源URL | [http://119.78.100.186/handle/113462/141736]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | An, Q. |
| 作者单位 | 1.Univ Sci & Technol China, State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China 3.Univ Geneva, Dept Nucl & Particle Phys, CH-1211 Geneva, Switzerland 4.Univ Salento, Dipartimento Matemat & Fis E De Giorgi, I-73100 Lecce, Italy 5.INFN, Sez Lecce, I-73100 Lecce, Italy 6.Chinese Acad Sci, Inst High Energy Phys, Yuquan Rd 19B, Beijing 100049, Peoples R China 7.Univ Chinese Acad Sci, Yuquan Rd 19A, Beijing 100049, Peoples R China 8.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210033, Jiangsu, Peoples R China 9.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China 10.Chinese Acad Sci, Inst Modern Phys, Nanchang Rd 509, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | An, Q.,Asfandiyarov, R.,Azzarello, P.,et al. Measurement of the cosmic ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite[J]. SCIENCE ADVANCES,2019,5(9):10. |
| APA | An, Q..,Asfandiyarov, R..,Azzarello, P..,Bernardini, P..,Bi, X. J..,...&Zimmer, S..(2019).Measurement of the cosmic ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite.SCIENCE ADVANCES,5(9),10. |
| MLA | An, Q.,et al."Measurement of the cosmic ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite".SCIENCE ADVANCES 5.9(2019):10. |
入库方式： OAI收割
来源：近代物理研究所
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