Eur. Phys. J. A 10, 387-393
Pionisation, relativistic lead-lead collisions, and the nature of average phase space density
Bhaskar De and S. BhattacharyyaPhysics and Applied Mathematics Unit (PAMU), Indian Statistical Institute, Calcutta 700035, India bhaskar_r@www.isical.ac.in
bsubrata@www.isical.ac.in
(Received: 14 November 2000 / Revised version: 16 April 2001 Communicated by A. Molinari)
Abstract
The average phase space density (APSD) of the particles produced
in high energy nuclear collisions at ultrarelativistic energies
has here been theoretically estimated on the basis of some
particular models for particle production spectra. The model-based
values so obtained have been compared with the very recent
experimental results in the field on the relevant observable and
also with the calculated results obtained by some other models.
Based on such comparisons, the present work indicates very
strongly that Hagedorn's model has a sound potentiality to achieve
a competitive status in its capability to deal with the data on
the APSD factor in heavy-ion collisions. The impact and
implications of all this have also been emphasised here in the
end.
25.75.-q - Relativistic heavy-ion collisions.
25.75.Gz - Particle correlations.
24.10.Pa - Thermal and statistical models.
13.85.Ni - Inclusive production with identified hadrons.
© Società Italiana di Fisica, Springer-Verlag 2001
