Experimental signals of phase transition

被引：25
作者：
D'Agostino, M [1 ]
Bruno, M
Gulminelli, F
Bougault, R
Cannata, F
Chomaz, P
Gramegna, F
Le Neindre, N
Moroni, A
Vannini, G
机构：
[1] Dipartimento Fis, Bologna, Italy
[2] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
[3] LPC Caen, CNRS, IN2P3, ISMRA, F-14050 Caen, France
[4] Univ Caen, LPC Caen, F-14050 Caen, France
[5] GANIL, CNRS, IN2P3, CEA,DSM, Caen, France
[6] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy
[7] CNRS, IN2P3, Inst Phys Nucl, Orsay, France
[8] Univ Milan, Dipartimento Fis, Milan, Italy
[9] Ist Nazl Fis Nucl, I-20133 Milan, Italy
来源：
NUCLEAR PHYSICS A | 2004年 / 734卷
关键词：
D O I：
10.1016/j.nuclphysa.2004.01.094
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The connection between the thermodynamics of charged finite nuclear systems and the asymptotically measured partitions is presented. Some open questions, concerning in particular equilibrium partitions are discussed. We show a detailed comparison of the decay patterns in Au + C, Cu, Au central collisions and in Au quasi-projectile events. Observation of abnormally large fluctuations in carefully selected samples of data is reported as an indication of a first order phase transition (negative heat capacity) in the nuclear equation of state.
引用
收藏
页码：512 / 519
页数：8
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