FIZIKA B 12 (2003)  2, 165 - 180

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HOW TO PROBE THE DYNAMICS OF THE FIREBALL EXPANSION ?

MIHAI  PETROVICI

National Institute for Physics and Nuclear Engineering, Bucharest, Romania

Paper devoted to honour the memory of Professor Nikola Cindro

Received 26 June 2003; revised manuscript received 29 October 2003
Accepted 8 December 2003        Online 3 March 2004

Model predictions on the yield distributions for different reaction products and on the collective energy of the expanding fireball as a function of break-up time, corroborated with the experimental results on the small-angle two-particle longitudinal correlation functions, transition energy dependence as a function of transversal momentum and azimuthal distributions of the collective expansion, evidence in a clear way the possibility to access different time slots in the dynamics of the fireball.

PACS numbers: 25.75.Ld, 25.70.Pq
UDC 539.17

Keywords: heavy ions, expansion, clustering, emission time, small angle correlations, transition energy, mean kinetic and flow energy azimuthal distributions

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