Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Subsolutions of the Dirac equation and WIMP dark matter   In the present paper we study subsolutions of the Dirac equation. The known
examples of such subsolutions are the Weyl neutrino and the Majorana neutrino.
It is shown that the Dirac equation for a massive non-interacting particle
admits another decomposition into two separate equations. It is suggested that
such particles can be identified with weakly interacting massive particles,
other than neutrinos and of non-exotic nature, which can be candidates for dark
matter.

10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics