Galactic cosmic ray propagation: sub-PeV diffuse gamma-ray and neutrino emission
文献类型：期刊论文
| 作者 | Qiao, Bing-Qiang; Liu, Wei ; Zhao, Meng-Jie; Bi, Xiao-Jun; Guo, Yi-Qing
|
| 刊名 | FRONTIERS OF PHYSICS
 |
| 出版日期 | 2022 |
| 卷号 | 17期号:4页码:44501 |
| 关键词 | Galactic cosmic ray diffuse gamma ray neutrino |
| ISSN号 | 2095-0462 |
| DOI | 10.1007/s11467-022-1160-7 |
| 文献子类 | Article |
| 英文摘要 | The Tibet AS gamma experiment just reported their measurement of sub-PeV diffuse gamma-ray emission from the Galactic disk, with the highest energy up to 957 TeV These diffuse gamma rays are most likely the hadronic origin by cosmic ray (CR) interaction with interstellar gas m the galaxy. This measurement provides direct evidence to the hypothesis that the Galactic Cosmic Rays (GCRs) can be accelerated beyond PeV energies. In this work, we try to explain the sub-PeV diffuse gamma-ray spectrum with different CR propagation models. We find that there is a tension between the sub-PeV diffuse gamma-ray and the local CR spectrum. To describe the sub-PeV diffuse gamma-ray flux, it generally requires larger local CR flux than measurement in the knee region. We further calculate the PeV neutrino flux from the CR propagation model. Even all of these sub-PeV diffuse gamma rays originate from the propagation, the Galactic Neutrinos (GNs) only account for less than similar to 15% of observed flux, most of which are still from extragalactic sources. |
| 电子版国际标准刊号 | 2095-0470 |
| 语种 | 英语 |
| WOS记录号 | WOS:000786417800001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299498]  |
| 专题 | 高能物理研究所_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 | Qiao, Bing-Qiang,Liu, Wei,Zhao, Meng-Jie,et al. Galactic cosmic ray propagation: sub-PeV diffuse gamma-ray and neutrino emission[J]. FRONTIERS OF PHYSICS,2022,17(4):44501. |
| APA | Qiao, Bing-Qiang,Liu, Wei,Zhao, Meng-Jie,Bi, Xiao-Jun,&Guo, Yi-Qing.(2022).Galactic cosmic ray propagation: sub-PeV diffuse gamma-ray and neutrino emission.FRONTIERS OF PHYSICS,17(4),44501. |
| MLA | Qiao, Bing-Qiang,et al."Galactic cosmic ray propagation: sub-PeV diffuse gamma-ray and neutrino emission".FRONTIERS OF PHYSICS 17.4(2022):44501. |
入库方式： OAI收割
来源：高能物理研究所
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