Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Results from NA49   An overview of results from the CERN experiment NA49 is presented with
emphasis on most recent measurements. NA49 has systematically studied the
dependence of hadron production on energy and system size or centrality. At
top-SPS energy the detailed investigation of hadron production, now also
extending to elliptic flow of Lambda-baryons and to identified particle yields
at high p_t, shows that the created matter behaves in a similar manner as at
RHIC energies. In the lower SPS energy range a distinct structure is observed
in the energy dependence of the rate of strangeness production and in the
slopes of p_t-spectra suggesting the onset of the creation of a deconfined
phase of matter.

29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga