Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrino-4 experiment on search for sterile neutrino with multi-section
  model of detector   In order to carry out research in the field of possible existence of sterile
neutrino the laboratory based on SM-3 reactor (Dimitrovgrad, Russia) was
created to search for oscillations of reactor antineutrino. The prototype of a
multi-section neutrino detector with liquid scintillator volume of 350 l was
installed in the middle of 2015. It is a moveable inside the passive shielding
detector, which can be set at distance range from 6 to 11 meters from the
reactor core. Measurements of antineutrino flux at such small distances from
the reactor core carried out with movable detector for the first time. The
measurements carried out with detector prototype demonstrated a possibility of
measuring a reactor antineutrino flux in difficult conditions of cosmic
background at Earth surface.

18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex