Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 130 GeV Fermi gamma-ray line from dark matter decay   The 130 GeV gamma-ray line based on tentative analyses on the Fermi-LAT data
is hard to be understood with dark matter annihilation in the conventional
framework of the MSSM. We point out that it can be nicely explained with two
body decay of a scalar dark matter ($\tilde{\phi}_{\rm
DM}\rightarrow\gamma\gamma$) by the dimension 6 operator suppressed with the
mass of the grand unification scale ($\sim 10^{16}$ GeV), ${\cal
L}\supset|\tilde{\phi}_{\rm DM}|^2F_{\mu\nu}F^{\mu\nu}/M_{\rm GUT}^2$, in which
the scalar dark matter $\tilde{\phi}_{\rm DM}$ develops a TeV scale vacuum
expectation value. We propose a viable model explaining the 130 GeV gamma-ray
line.

18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics