Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the minimal active-sterile neutrino mixing in seesaw type I mechanism
  with sterile neutrinos at GeV scale   Renewed interest in GeV-scale sterile neutrinos capable of explaining active
neutrino oscillations via see-saw type I mechanism has been expressed in
several proposals of direct searches. Given this activity we estimate the
minimal values of sterile-active mixing angles provided one, two, or three
sterile neutrinos are lighter than D-meson.

12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg