Measurement of high energy dark matter from the Sun at IceCube

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 ${\tau }_{\varphi }\lesssim 5\times 10^{22}$ s.

arXiv comment13 pages, 5 figures

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Cited by in corpus (4)

• Neutrinos from captured dark matter annihilation in a galactic population of neutron stars
• Solar constraints on captured electrophilic dark matter
• Probing the Dark Matter Capture Rate in a Local Population of Brown Dwarfs with IceCube Gen 2
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