DAPNIA-05-276 |
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Estimate of average freeze-out volume in multifragmentation events |
S. Piantelli, N. Le Neindre, E. Bonnet, B. Borderie, G. Lanzalone, M. Parlog, M.F. Rivet, R. Bougault, A. Chbihi, R. Dayras, D. Durand, J.D. Frankland, E. Galichet, D. Guinet, P. Lautesse, O. Lopez, E. Rosato, B. Tamain, E. Vient, M. Vigilante,C. Volant, J.P. Wieleczko |
An estimate of the average freeze-out volume for multifragmentation events is presented. Values of volumes are obtained by means of a simulation using the experimental charged product partitions measured by the 4pi multidetector INDRA for 129Xe central collisions on natSn at 32 A MeV incident energy. The input parameters of the simulation are tuned by means of the comparison between the experimental and simulated velocity (or energy) spectra of particles and fragments. |