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The cosmic ray energy spectrum between 10~(14) and 10~(16) eV

机译:10〜(14)和10〜(16)eV之间的宇宙射线能谱

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The energy spectrum of cosmic rays with primary energies between 10~(14) eV and 10~(16) eV has been studied with the CASAMIA air shower array. The measured differential energy spectrum is a power law (dj/dE propor. to E~(-#gamma#)) with spectral indices #gamma# of 2.66+-0.02 below approximately 10~(15) eV and 3.00+-0.05 above. A new method is used for measuring primary energy derived from ground-based data in a compositionally insensitive way. In contrast with some previous reports, the "knee" of the energy spectrum does not appear sharp, but rather a smooth transition over energies from 10~(15) eV to 3.0 x 10~(15) eV.
机译:利用CASAMIA空气淋浴阵列研究了一次能量在10〜(14)eV和10〜(16)eV之间的宇宙射线的能谱。测得的微分能量谱是幂定律(dj / dE比例成E〜(-#gamma#)),其光谱指数#gamma#大约低于10〜(15)eV时为2.66 + -0.02,高于大约10〜(15)eV时为3.00 + -0.05 。一种新方法用于以成分不敏感的方式测量从地面数据得出的一次能量。与以前的一些报告相比,能谱的“拐点”看起来并不尖锐,而是在从10〜(15)eV到3.0 x 10〜(15)eV的能量上平滑过渡。

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