Cosmic ray spectrum and composition from three years of IceTop and IceCube

被引：14
|
作者：
Rawlins, K. [1 ]
机构：
[1] Univ Alaska Anchorage, 3211 Providence Dr, Anchorage, AK 99508 USA
来源：
XIV INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2015), PTS 1-7 | 2016年 / 718卷
关键词：
D O I：
10.1088/1742-6596/718/5/052033
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
IceTop is the surface component of the IceCube Observatory, composed of frozen water tanks at the top of IceCube's strings. Data from this detector can be analyzed in different ways with the goal of measuring cosmic ray spectrum and composition. The shower size 5125 from IceTop alone can be used as a proxy for primary energy, and unfolded into an all-particle spectrum. In addition, 5125 from the surface can be combined with high-energy muon energy loss information from the deep IceCube detector for those air showers which pass through both. Using these coincident events in a complementary analysis, both the spectrum and mass composition of primary cosmic rays can be extracted in parallel using a neural network. Both of these analyses have been performed on three years of IceTop and IceCube data. Both all-particle spectra as well as individual spectra for elemental groups are presented.
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页数：5
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