Freeze-out properties of multifragmentation events

✍ Scribed by S. Piantelli; B. Borderie; E. Bonnet; N. Le Neindre; Ad.R. Raduta; M.F. Rivet; R. Bougault; A. Chbihi; R. Dayras; J.D. Frankland; E. Galichet; F. Gagnon-Moisan; D. Guinet; P. Lautesse; G. Lehaut; O. Lopez; D. Mercier; J. Moisan; M. Pârlog; E. Rosato; R. Roy; B. Tamain; E. Vient; M. Vigilante; J.P. Wieleczko

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 676 KB
• Volume: 809
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2008.06.004

✦ Synopsis

Freeze-out properties of multifragmentation events produced in central 129 Xe + nat Sn collisions at different beam energies (32, 39, 45 and 50 A MeV) were estimated by means of a simulation based on the experimental data collected by the 4π INDRA multidetector. A rapid increase (between 32 and 45 A MeV) of the fraction of particles emitted at freeze-out is deduced. The existence of a limitation of excitation energy for fragments around 3.0-3.5 A MeV is confirmed. A comparison with the results of a microcanonical statistical model is also performed to verify the overall physical coherence of the present approach.