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タムラ タダヒサ
Tamura Tadahisa 田村 忠久 所属 神奈川大学 工学部 応用物理学科 神奈川大学大学院 工学研究科 工学専攻（応用物理学領域） 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2017/11 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Energy Spectrum of Cosmic-ray Electron + Positron from 10 GeV to 3 TeV Observed
with the Calorimetric Electron Telescope on the International Space Station |
| 執筆形態 | 共著 |
| 掲載誌名 | PHYSICAL REVIEW LETTERS |
| 掲載区分 | 国外 |
| 出版社・発行元 | the American Physical Society |
| 巻・号・頁 | 119(18),pp.181101-1-181101-6 |
| 著者・共著者 | O. Adriani, et. al. |
| 概要 | First results of a cosmic-ray electron and positron spectrum from 10 GeV to 3 TeV is presented based upon observations with the CALET instrument on the International Space Station starting in October, 2015. Nearly a half million electron and positron events are included in the analysis. CALET is an all-calorimetric instrument with total vertical thickness of 30 X0 and a fine maging capability designed to achieve a large proton rejection and excellent energy resolution well into the TeVenergy region. The observed energy spectrum over 30 GeV can be fit with a single power law with a spectral index of −3.152 +- 0.016
(stat + syst). Possible structure observed above 100 GeV requires further investigation with increased statistics and refined data analysis. |
| DOI | https://doi.org/10.1103/PhysRevLett.119.181101 |
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