Evidence for spinodal decomposition in nuclear multifragmentation

Multifragmentation of a "fused system" was observed for central collisions between 32 MeV/nucleon 129Xe and (nat)Sn. Most of the resulting charged products were well identified due to the high performances of the INDRA 4pi array. Experimental higher-order charge correlations for fragments...

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Bibliographic Details
Published in:Physical review letters 2001-04, Vol.86 (15), p.3252-3255
Main Authors: Borderie, B, Tăbăcaru, G, Chomaz, P, Colonna, M, Guarnera, A, Pârlog, M, Rivet, M F, Auger, G, Bacri, C O, Bellaize, N, Bougault, R, Bouriquet, B, Brou, R, Buchet, P, Chbihi, A, Colin, J, Demeyer, A, Galichet, E, Gerlic, E, Guinet, D, Hudan, S, Lautesse, P, Lavaud, F, Laville, J L, Lecolley, J F, Leduc, C, Legrain, R, Le Neindre, N, Lopez, O, Louvel, M, Maskay, A M, Normand, J, Pawlowski, P, Rosato, E, Saint-Laurent, F, Steckmeyer, J C, Tamain, B, Tassan-Got, L, Vient, E, Wieleczko, J P
Format: Article
Language:English
Subjects:
Nuclear Experiment
Physics
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Summary:Multifragmentation of a "fused system" was observed for central collisions between 32 MeV/nucleon 129Xe and (nat)Sn. Most of the resulting charged products were well identified due to the high performances of the INDRA 4pi array. Experimental higher-order charge correlations for fragments show a weak but nonambiguous enhancement of events with nearly equal-sized fragments. Supported by dynamical calculations in which spinodal decomposition is simulated, this observed enhancement is interpreted as a "fossil" signal of spinodal instabilities in finite nuclear systems.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.86.3252