Evidence for spinodal decomposition in nuclear multifragmentation

被引：93

作者：

Borderie, B

Tabacaru, G

Chomaz, P

Colonna, M

Guarnera, A

Pârlog, M

Rivet, MF

Auger, G

Bacri, CO

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, JL

Lecolley, JF

Leduc, C

Legrain, R

Le Neindre, N

Lopez, O

Louvel, M

Maskay, AM

Normand, J

Pawlowski, P

Rosato, E

Saint-Laurent, F

Steckmeyer, JC

Tamain, B

Tassan-Got, L

Vient, E

Wieleczko, JP

机构：

[1] Inst Phys Nucl, CNRS, IN2P3, F-91406 Orsay, France

[2] Natl Inst Phys & Nucl Engn, RO-76900 Bucharest, Romania

[3] CEA, GANIL, F-14076 Caen, France

[4] IN2P3, CNRS, F-14076 Caen, France

[5] Lab Nazl Sud, I-95129 Catania, Italy

[6] ISMRA, CNRS, IN2P3, LPC, F-14050 Caen, France

[7] Univ Caen, F-14050 Caen, France

[8] CEA Saclay, SPhN, DAPNIA, F-91191 Gif Sur Yvette, France

[9] Inst Phys Nucl, CNRS, IN2P3, F-69622 Villeurbanne, France

[10] Univ Villeurbanne, F-69622 Villeurbanne, France

[11] Conservatoire Natl Arts & Metiers, F-75141 Paris 03, France

[12] Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy

[13] Univ Naples Federico II, Sezione INFN, I-80126 Naples, Italy

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.86.3252

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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

引用

页码：3252 / 3255

页数：4

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