Superheavy dark matter and IceCube neutrino signals: Bounds on decaying dark matter

被引：103
|
作者：
Rott, Carsten [1 ]
Kohri, Kazunori [2 ,3 ]
Park, Seong Chan [4 ,5 ,6 ]
机构：
[1] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea
[2] KEK, High Energy Accelerator Res Org, Inst Particle & Nucl Studies, Theory Ctr, Tsukuba, Ibaraki 3050801, Japan
[3] Grad Univ Adv Studies Sokendai, Tsukuba, Ibaraki 3050801, Japan
[4] Yonsei Univ, Dept Phys, Seoul 120749, South Korea
[5] Yonsei Univ, IPAP, Seoul 120749, South Korea
[6] Korea Inst Adv Study, Seoul 130722, South Korea
来源：
PHYSICAL REVIEW D | 2015年 / 92卷 / 02期
基金：
新加坡国家研究基金会;
关键词：
PARTICLE; CONSTRAINTS; CANDIDATES;
D O I：
10.1103/PhysRevD.92.023529
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Superheavy dark matter may show its presence in high-energy neutrino signals detected on Earth. From the latest results of IceCube, we could set the strongest lower bound on the lifetime of dark matter beyond 100 TeV around 10(28) s. The excess around a PeV is noticed and may be interpreted as the first signal of dark matter even though further confirmation and dedicated searches are invited.
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页数：5
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