Abstract:
We study the local equilibrium in the central
V = 125 fm3
cell in heavy-ion collisions at energies from
10.7A GeV
(AGS) to 160A GeV (SPS) calculated in the
microscopic
transport model. In the present paper the
hadron yields and
energy spectra in the cell are compared with
those of
infinite nuclear matter, as calculated within
the same
model. The agreement between the spectra in
the two systems
is established for times t [>=] 10 fm/c in
the central
cell. The cell results do not deviate
noticeably from the
infinite matter calculations with rising
incident energy, in
contrast to the apparent discrepancy with
predictions of the
statistical model (SM) of an ideal hadron
gas. The entropy
of this state is found to be very close to
the maximum
entropy, while hadron abundances and energy
spectra differ
significantly from those of the SM.
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