Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SUSY in the sky or a keV signature of sub-GeV gravitino dark matter   We point out that recently discovered 3.5 keV line in X-ray spectra from
various galaxy clusters and the Andromeda galaxy can be naturally explained by
physics of a sector responsible for spontaneous supersymmetry breaking in
models with R-parity. In this scenario the source of this line could be decay
of sgoldstino - scalar superpartner of massive gravitino. At the same time the
dominant dark matter component is stable gravitino whose mass is predicted to
be about 0.25 GeV.

33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat