Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravitino Dark Matter with Stop as the NLSP   Gravitino is one feasible candidate for the dark matter in supergravity
models. With its couplings being suppressed by the Plank mass, gravitino
interacts very weakly with other particles, making its direct detection, or
production at colliders practically impossible. The signatures of this scenario
mainly arise from the next lightest supersymmetric particle (NLSP) which is
metastable due to the very weak coupling. There are many possibilities for the
NLSP, and here I will review the feasibility of stop particle as the NLSP and
discuss its phenomenology.

1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
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
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg