Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Massive gravitons as FIMP dark matter candidates   We discovered a chiral enhancement in the production cross-sections of
massive spin-2 gravitons, below the electroweak symmetry breaking scale, that
makes them ideal dark matter candidates for the freeze-in mechanism. The result
is independent on the physics at high scales, and points towards masses in the
MeV range. The graviton is, therefore, a warm dark matter particle, as favoured
by the small scale galaxy structures. We apply the novel calculation to a
Randall-Sundrum model with three branes, showing a significant parameter space
where the first two massive gravitons saturate the dark matter relic density.

37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org