用AMS-02测量的cosmic ray电子能谱和正电子能谱
The cosmic ray electron and positron spectra measured by AMS-02
摘要：
AMS-02探测器自2011年5月以来一直在国际空间站上运行。在数据采集的头两年里，该仪器收集了300多亿个事件。本文介绍了350 GeV以下初级宇宙射线中正电子分数和正电子通量、500 GeV以下电子通量和700 GeV以下电子+正电子总通量的精确测量。分离和合并的电子和正电子通量是初步的，代表正在进行的工作。系统的不确定性仍需进一步调查。
英文摘要：
The AMS-02 detector is operating on the International Space Station since May 2011. More than 30 billion events have been collected by the instrument in the first two years of data taking. A precision measurement of the positron fraction and of the positron flux in primary cosmic rays up to 350 GeV, of the electron flux up to 500 GeV and of the combined electron plus positron flux up to 700 GeV are presented. The separate and combined electron and positron fluxes are preliminary and represent work in progress. Systematic uncertainties must still be investigated further.
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