Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for Deconfinement in NA49 at the CERN SPS   Experiment NA49 at the Cern SPS uses a large acceptance detector for a
systematic study of particle yields and correlations in nucleus-nucleus,
nucleon-nucleus and nucleon-nucleon collisions. Preliminary results for Pb+Pb
collisions at 40, 80 and 158 A*GeV beam energy are shown and compared to
measurements at lower and higher energies.

17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph