Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraining the scalar singlet and inert dark matter models using
  neutron stars   In the present work we study the scalar singlet as well as the Two-Higgs
Doublet model inert dark matter particles impact on compact objects, and we
provide the first constraints of the parameter space using neutron stars. The
models discussed here are characterized by two free parameters, namely the mass
$M_\chi$ of the scalar particle that plays the role of the dark matter in the
Universe, and a dimensionless coupling constant $\lambda_\chi$ that determines
the strength of the interaction of the dark matter particles with the Standard
Model Higgs boson. By considering a typical neutron star we were able to obtain
constraints on scalar dark matter depending on the DM annihilation cross
section and self-interaction coupling constant. Our findings show that i) for
heavy DM particles neutron stars can provide us with bounds better that the
current limits from direct detection searches only when the self-annihilations
of DM particles are negligible and the DM self-interaction coupling constant is
very small, while ii) for light DM particles the bounds obtained here are
comparable to limits from Higgs invisible decays unless the DM particles are
extremely light.

27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin