Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Single Spin Asymmetry in High Pt Charged Hadron Production off Nuclei at
  40 GeV   The single transverse spin asymmetry data for the charged hadron production
in pC and pCu interactions are presented. The measurements have been performed
at FODS-2 experimental setup using 40 GeV/c IHEP polarized proton beam. The
hadron transverse momentum range is from 0.5 GeV/c up to 4 GeV/c. The data
obtained off the nuclear targets are compared with the proton target data
measured earlier with the same experimental setup and with the data of other
experiments.

32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th