Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The decay of singlet scalar dark matter to unparticle and photon   We consider the unparticle physics introduced by Georgi and show that if the
standard model is extended to include a singlet scalar as a dark matter
candidate, there is a channel which leads to its decay to photon and
unparticle. We calculate the decay rate for this new channel and find a lower
bound on unparticle physics scale by demanding the stability of this candidate
of the dark matter.

3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol