Speeding Up Dark Matter With Solar Neutrinos. (arXiv:2001.00948v2 [hep-ph] UPDATED)
<a href="http://arxiv.org/find/hep-ph/1/au:+Zhang_Y/0/1/0/all/0/1">Yue Zhang</a>

We present a novel mechanism of using solar neutrinos to speed up dark
matter, inspired by the fact that neutrinos are the most energetic particles
from the Sun with a well-understood spectrum. In a neutrino portal dark sector
model, we show that dark matter with sub-GeV mass could be accelerated by the
$pp$ neutrinos to velocities well above $10^{-3}c$ and capable of depositing
large enough energy at direct detection experiments. A crucial ingredient of
this mechanism is the dissociation of stable dark matter bound states that
exist in Nature. The resulting dark matter velocity distribution bears a strong
resemblance in shape to the solar neutrino spectrum. As an application, we
derive a leading limit on light dark matter interaction by reinterpreting a
recent PICO experiment result.

We present a novel mechanism of using solar neutrinos to speed up dark
matter, inspired by the fact that neutrinos are the most energetic particles
from the Sun with a well-understood spectrum. In a neutrino portal dark sector
model, we show that dark matter with sub-GeV mass could be accelerated by the
$pp$ neutrinos to velocities well above $10^{-3}c$ and capable of depositing
large enough energy at direct detection experiments. A crucial ingredient of
this mechanism is the dissociation of stable dark matter bound states that
exist in Nature. The resulting dark matter velocity distribution bears a strong
resemblance in shape to the solar neutrino spectrum. As an application, we
derive a leading limit on light dark matter interaction by reinterpreting a
recent PICO experiment result.

http://arxiv.org/icons/sfx.gif

Comments are closed, but trackbacks and pingbacks are open.