2018 Impact factor 2.481
Hadrons and Nuclei


Eur. Phys. J. A 10, 387-393

Pionisation, relativistic lead-lead collisions, and the nature of average phase space density

Bhaskar De and S. Bhattacharyya

Physics 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.

PACS
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