Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detection of Inelastic Dark Matter via Electron Recoils in SENSEI   The low-threshold experiment SENSEI, which uses the ultralow-noise silicon
Skipper-CCD to explore light dark matter from the halo, has achieved the most
rigorous limitations on light DM-electron scattering cross section. In this
work, we investigate the inelastic DM-electron scattering process with the
SENSEI data and derive the constraints on the inelastic dark matter model with
a $U(1)$ gauge boson as the mediator. Comparing with elastic scattering
process, we find that the down-scattering process with the mass splitting
$\delta \equiv m_{\chi_2}-m_{\chi_1}<0$ is more strongly constrained while the
up-scattering process $\delta>0$ gets the weaker limits. For the
down-scattering process with mass splitting $\delta \sim -5$ eV, the DM mass
$m_{\chi}$ can be excluded down to as low as 0.1 MeV.

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The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
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The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph