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arXiv 0912.0896astro-ph.HE
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IceTop中的小空气簇射

Small air showers in IceTop

Bakhtiyar Ruzybayev, Shahid Hussain, Chen Xu, Thomas Gaisser

摘要:

冰顶是一个空气簇射阵列,是冰立方天文台的一部分,目前正在建设中的地理南极。建成后,它将由80个车站组成,覆盖面积为1平方公里。之前使用IceTop进行的分析研究了触发五个或更多站的事件,导致有效能量阈值约为0.5 PeV。本研究的目标是将这个阈值推低,进入与宇宙射线的直接测量重叠的区域,该区域目前的上限约为300 TeV。我们选择触发正好三个或正好四个相邻的表面站的簇射,这些表面站不在探测器的外围(包含事件)。这将能量阈值扩展到150TeV。

英文摘要:

IceTop is an air shower array that is part of the IceCube Observatory currently under construction at the geographic South Pole. When completed, it will consist of 80 stations covering an area of 1 km2. Previous analyzes done with IceTop studied the events that triggered five or more stations, leading to an effective energy threshold of about 0.5 PeV. The goal of this study is to push this threshold lower, into the region where it will overlap with direct measurements of cosmic rays which currently have an upper limit around 300TeV.We select showers that trigger exactly three or exactly four adjacent surface stations that are not on the periphery of the detector (contained events). This extends the energy threshold down to 150TeV.

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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