Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermal and Hadrochemical Equilibration in Nucleus-Nucleus Collisions at
  the SPS   The currently available set of hadron abundances at the SPS for central
S+Au(W,Pb) collisions is compared to predictions from a scenario assuming local
thermal and hadrochemical equilibrium. The data are consistent with a
freeze-out temperature T = 160-170 MeV. Spectra are consistent with this
temperature range and a moderate transverse expansion. The freeze-out points at
the AGS and SPS are found to be close to the phase boundary between a hadron
gas and an ideal quark-gluon phase.

23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th