Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Indirect signals from braneworlds   It has been suggested that our universe could be a 3-dimensional brane where
the SM fields live embedded in a D-dimensional space-time. In flexible
raneworlds, in addition to the SM fields, new degrees of freedom appear on the
brane associated to brane fluctuations. These new fields, known as branons, are
standard WIMPs (Weakly Interacting Massive Particles) and therefore natural
dark matter candidates, whose spontaneous annihilations can provide first
evidences for this scenario.

29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom