Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Directional Dark Matter Search and Velocity Distribution   Directional detection of dark matter is the next generation experiment, which
is expected to have better back ground rejection efficiency than conventional
direct search. Another intriguing possibility of the experiment by means of the
directional information is measurement the velocity distribution of dark
matter. Especially, it will be potent to figure out whether the velocity
distribution is anisotropic. Supposing three distribution models, we discuss
the possibility in one of the directional dark matter searches, nuclear
emulsion detector.

18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol