Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inception of Self-Interacting Dark Matter with Dark Charge Conjugation
  Symmetry   A new understanding of the stability of self-interacting dark matter is
pointed out, based on the simplest spontaneously broken Abelian $U(1)$ gauge
model with one complex scalar and one Dirac fermion. The key is the imposition
of dark charge conjugation symmetry. It allows the possible existence of two
stable particles: the Dirac fermion and the vector gauge boson which acts as a
light mediator for the former's self-interaction. Since this light mediator
does not decay, it avoids the strong cosmological constraints recently obtained
for all such models where the light mediator decays into standard-model
particles.

22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th