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arXiv · 2106.02202

Measurement of high energy dark matter from the Sun at IceCube

Ye Xu
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Abstract

It is assumed that heavy dark matter particles (HDMs) with a mass of O(TeV) are captured by the Sun. HDMs can decay to relativistic light dark matter particles (LDMs), which could be measured by km$^3$ neutrino telescopes (like the IceCube detector). The numbers and fluxes of expected LDMs and neutrinos were evaluated at IceCube with the $Z^{\prime}$ portal dark matter model. Based on the assumption that no events are observed at IceCube in 6 years, the corresponding upper limits on LDM fluxes were calculated at 90\% C. L.. These results indicated that LDMs could be directly detected in the O(1TeV)-O(10TeV) energy range at IceCube with 100 GeV $\lesssim m_{Z^{\prime}} \lesssim$ 350 GeV and $\tau_{\phi} \lesssim 5\times10^{22}$ s.

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Ye Xu. 2021-06-04. Measurement of high energy dark matter from the Sun at IceCube. https://doi.org/10.1007/jhep12(2021)035

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