Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Attractive Scenario for Light Dark Matter Direct Detection   Direct detection of light dark matter (DM), below the GeV scale, through
electron recoil can be efficient if DM has a velocity well above the virial
value of $v\sim 10^{-3}$. We point out that if there is a long range attractive
force sourced by bulk ordinary matter, i.e. baryons or electrons, DM can be
accelerated towards the Earth and reach velocities $v\sim 0.1$ near the Earth's
surface. In this "attractive scenario," all DM will be boosted to high
velocities by the time it reaches direct detection apparatuses in laboratories.
Furthermore, the attractive force leads to an enhanced DM number density at the
Earth facilitating DM detection even more. We elucidate the implications of
this scenario for electron recoil direct detection experiments and find
parameters that could lead to potential signals, while being consistent with
stellar cooling and other bounds. Our scenario can potentially explain the
recent excess in electron recoil signals reported by the XENON1T experiment in
the $\sim$ keV energy regime as well as the hint for non-standard stellar
cooling.

1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas