Multifragmentation and phase transition for hot nuclei

Bernard Borderie (1) , Eric Bonnet (1, 2) , F. Gulminelli (3) , N. Le Neindre (1, 3) , D. Mercier (2, 3) , S. Piantelli (1) , M. F. Rivet (1) , R. Bougault (3) , A. Chbihi (2) , J.D. Frankland (2) , Ad. R. Raduta (4) , F. Gagnon-Moisan (1, 5) , E. Galichet (1, 6) , D. Guinet (7) , P. Lautesse (7) , J. Lukasik (8) , M. Pârlog (3) , E. Rosato (9) , R. Roy (5) , B. Tamain (3) , M. Vigilante (9) , J.P. Wieleczko (2)

1 IPNO - Institut de Physique Nucléaire d'Orsay
2 GANIL - Grand Accélérateur National d'Ions Lourds
3 LPCC - Laboratoire de physique corpusculaire de Caen
4 NIPNE - Horia Hulubei National Institute of Physics and Nuclear Engineering
5 Laboratoire de Physique Nucléaire
6 CNAM - Conservatoire National des Arts et Métiers [CNAM]
7 IPNL - Institut de Physique Nucléaire de Lyon
8 IFJ-PAN - Institute of Nuclear Physics
9 Dipartimento di Scienze Fisiche e Sezione INFN

Recent important progress on the knowledge of multifragmentation and phase transition for hot nuclei, thanks to the high detection quality of the INDRA array, is reported. It concerns i) the radial collective energies involved in hot fragmenting nuclei/sources produced in central and semi- peripheral collisions and their influence on the observed fragment partitions, ii) a better knowledge of freeze-out properties obtained by means of a simulation based on all the available experimental information and iii) the quantitative study of the bimodal behaviour of the heaviest fragment distribution for fragmenting hot heavy quasi-projectiles which allows the extraction, for the first time, of an estimate of the latent heat of the phase transition.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

Bernard Borderie, Eric Bonnet, F. Gulminelli, N. Le Neindre, D. Mercier, et al.. Multifragmentation and phase transition for hot nuclei. 2009. ⟨hal-00461741⟩