Search for dark matter from the centre of the Earth with 8 years of IceCube data

被引：0

作者：

Renzi, G. ^{[1
]}

机构：

[1] Univ Libre Bruxelles, Ave FD Roosevelt 50, B-1050 Brussels, Belgium

来源：

JOURNAL OF INSTRUMENTATION | 2021年 / 16卷 / 11期

关键词：

Data analysis; Data reduction methods; Neutrino detectors; Particle detectors;

D O I：

10.1088/1748-0221/16/11/C11012

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Neutrinos have been proved to be unique messengers in the understanding of fundamental physics processes, and in astrophysical data sets they may provide hints of physics beyond the Standard Model. For example, neutrinos could be the key to discerning between various dark matter models that are based on Weakly Interacting Massive Particles (WIMPs). WIMPs can scatter off standard matter nuclei in the vicinity of massive bodies such as the Sun or the Earth, lose velocity, and be gravitationally trapped in the center of the body. Self-annihilation of dark matter into Standard Model particles may produce an observable flux of neutrinos. For the case of the Earth, an excess of neutrinos coming from the center of the planet could indicate WIMP capture and annihilation at the Earth's core. The IceCube Neutrino Observatory, located at the geographical South Pole, is sensitive to these excess neutrinos. A search has been conducted on 8 years of IceCube data, probing multiple dark matter channels and masses. With this analysis, we show that IceCube has world-leading sensitivity to the spin-independent dark matter-nucleon scattering cross section above a WIMP mass of 100 GeV.

引用

页数：6

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