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First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-350 GeV
文献类型：期刊论文
| 作者 | AMS Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2013 |
| 卷号 | 110期号:14 |
| 关键词 | AMS RICH DETECTOR TIME-OF-FLIGHT FAST TRIGGER IDENTIFICATION PROTOTYPE ELECTRONS EARTH TRD |
| 通讯作者 | Aguilar, M (reprint author), CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain. |
| 英文摘要 | A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8 x 10(6) positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to similar to 250 GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. The positron fraction spectrum shows no fine structure, and the positron to electron ratio shows no observable anisotropy. Together, these features show the existence of new physical phenomena. DOI: 10.1103/PhysRevLett.110.141102 |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000317106800003 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213500]  |
| 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 | AMS Collaboration. First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-350 GeV[J]. PHYSICAL REVIEW LETTERS,2013,110(14). |
| APA | AMS Collaboration.(2013).First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-350 GeV.PHYSICAL REVIEW LETTERS,110(14). |
| MLA | AMS Collaboration."First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-350 GeV".PHYSICAL REVIEW LETTERS 110.14(2013). |
入库方式： OAI收割
来源：高能物理研究所
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