Probing High-Energy Light Dark Matter with IceCube. (arXiv:2004.03161v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Guo_G/0/1/0/all/0/1">Gang Guo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tsai_Y/0/1/0/all/0/1">Yue-Lin Sming Tsai</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wu_M/0/1/0/all/0/1">Meng-Ru Wu</a>
The direct detection of particle dark matter through its scattering with
nucleons is of fundamental importance to understand the nature of DM. In this
work, we propose that the high-energy neutrino detectors like IceCube can be
used to uniquely probe the DM-nucleon cross-section for high-energy DM of
$sim$ PeV, up-scattered by the high-energy cosmic rays. We derive for the
first time strong constraints on the DM-nucleon cross-section down to $sim
10^{-32}$ cm$^2$ at this energy scale for sub-GeV DM candidates. Such
independent probe at energy scale far exceeding other existing direct detection
experiments can therefore provide useful insights complementary to other
searches.
The direct detection of particle dark matter through its scattering with
nucleons is of fundamental importance to understand the nature of DM. In this
work, we propose that the high-energy neutrino detectors like IceCube can be
used to uniquely probe the DM-nucleon cross-section for high-energy DM of
$sim$ PeV, up-scattered by the high-energy cosmic rays. We derive for the
first time strong constraints on the DM-nucleon cross-section down to $sim
10^{-32}$ cm$^2$ at this energy scale for sub-GeV DM candidates. Such
independent probe at energy scale far exceeding other existing direct detection
experiments can therefore provide useful insights complementary to other
searches.
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