Measurement of high energy dark matter from the Sun at IceCube

Journal of High Energy Physics

Ye Xu¹ 

[1] School of Electronic, Electrical Engineering and Physics, Fujian University of Technology, 350118, Fuzhou, China;Research center for Microelectronics Technology, Fujian University of Technology, 350118, Fuzhou, China;

关键词: Dark matter;    Dark Matter and Double Beta Decay (experiments);   

DOI  :  10.1007/JHEP12(2021)035

来源: Springer

【 摘 要 】

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 km3 neutrino telescopes (like the IceCube detector). The numbers and fluxes of expected LDMs and neutrinos were evaluated at IceCube with the Z′ 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 ≲ mZ′ ≲ 350 GeV and τϕ ≲ 5 × 1022ṡ.

【 授权许可】

CC BY