Precision Measurement of Boron to Carbon flux ratio in Cosmic Rays from 2 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station.
Precision Measurement of Boron to Carbon flux ratio in Cosmic Rays from 2 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station.
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DOI：
10.22323/1.236.0265
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发表时间：
2016-08
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通讯作者：
M. Aguilar;L. Ali Cavasonza;G. Ambrosi;L. Arruda;N. Attig;S. Aupetit;P. Azzarello;A. Bachlechner-A.-Bachlechn
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作者：
M. Aguilar;L. Ali Cavasonza;G. Ambrosi;L. Arruda;N. Attig;S. Aupetit;P. Azzarello;A. Bachlechner-A.-Bachlechn
AMS-02 是一项广泛接受的高能物理实验，于 2011 年 5 月安装在国际空间站上，并自此持续运行。 AMS-02能够精确分离污染度小于10−3的宇宙射线光核（1≤Z≤8）。轻核宇宙射线硼与碳通量比是众所周知的敏感观测值，对于理解宇宙射线在银河系中的传播来说，硼是较重的初级元素（如碳和氧）在星际介质上散裂的二次产物。提出了基于 2 GV 至 1.8 TV 刚度范围内硼碳比的 1000 万次事件的精确测量。
AMS-02 is wide acceptance high-energy physics experiment installed on the International Space Station in May 2011 and operating continuously since then. AMS-02 is able to precisely separate cosmic rays light nuclei (1≤ Z ≤ 8) with contaminations less than 10−3. The light nuclei cosmic ray Boron to Carbon flux ratio is very well known sensitive observable for the understanding of the propagation of cosmic rays in the Galaxy, being Boron a secondary product of spallation on the interstellar medium of heavier primary elements such as Carbon and Oxygen. A precision measurement based on 10 million events of the Boron to Carbon ratio in the rigidity range from 2 GV to 1.8 TV is presented.