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arXiv 0810.3409astro-ph
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IceTop空气簇射阵列的Cosmic Ray结果

Cosmic Ray Results from the IceTop Air Shower Array

Hermann Kolanoski

摘要:

我们报告的第一个结果与IceTop空气淋浴阵列的宇宙射线能谱和质量组成的范围为1 PeV至80 PeV。冰顶是目前正在南极建造的冰立方中微子望远镜的表面探测器。通过重建不同天顶角的阵雨,观察到对初级质量组成的高灵敏度。假设只有质子或铁核作为初级粒子产生显着不同的能谱为不同的天顶角范围内,而只有模型与混合组成,如poly-gonato模型,导致预期的各向同性通量。还讨论了使用完整IceCube探测器的不同替代方法进行成分测量的前景。

英文摘要:

We report on the first results obtained with the IceTop air shower array on the cosmic ray energy spectrum and mass composition in the range of 1 PeV to 80 PeV. IceTop is the surface detector of the IceCube neutrino telescope currently under construction at the South Pole. A high sensitivity to the primary mass composition was observed by reconstructing showers at different zenith angles. Assuming only protons or iron nuclei as primary particles yields significantly different energy spectra for different zenith angle ranges, while only models with mixed composition, like the poly-gonato model, lead to the expected isotropic flux. The prospects of composition measurements with different, alternative methods using the full IceCube detector are also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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