Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hadronic Signatures of Deconfinement in relativistic nuclear collisions   We describe the remarkable accomplishments of the current heavy ion Pb--Pb
collision experiments involving strange particle production, carried out at
158A GeV at CERN--SPS. These experimental results, together with the earlier
200A GeV S-induced reactions, imply that, at central rapidity, a novel
mechanism of strangeness production arises, accompanied by excess entropy
formation. We argue that: These results are consistent with the formation of a
space-time localized, highly excited, dense state of matter; The freeze-out
properties of strange hadrons are suggestive of the formation of a
color-deconfined, thermally and nearly chemically equilibrated phase, which
provides at present the only comprehensive framework to describe all
experimental data; The matter fireball is undergoing a transverse expansion
with nearly the velocity of sound of relativistic matter; longitudinal
expansion is not in the scaling regime. We present a first analysis of the
recent Pb-Pb results and discuss several alternative reaction scenarios. We
evaluate quantitatively strangeness production in the deconfined quark-gluon
phase and obtain yields in agreement with the experimental observations made in
200A GeV S--W and 158A GeV Pb-Pb interactions. We also present a qualitative
discussion of J/Psi results consistent with our understanding of strange
particle results.

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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
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The categories of this paper are: eess
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The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
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The categories of this paper are: physics
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: cs
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat