Theoretical comparison of different thermometers for the determination of the nuclear caloric curve

被引:71
作者
Gulminelli, F [1 ]
Durand, D [1 ]
机构
[1] UNIV CAEN,F-14050 CAEN,FRANCE
关键词
multifragmentation; liquid-gas phase transition; caloric curve; nuclear temperature;
D O I
10.1016/S0375-9474(97)81644-2
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 problem of the experimental determination of a nuclear temperature in heavy ion collisions is addressed within an extended Quantum Statistical Model which includes secondary evaporation from continuum states and an effective excluded volume interaction in the freeze-out configuration. The comparison to experimental data from the INDRA Collaboration suggests that thermodynamical equilibration can actually be reached even at excitation energies as high as 25 MeV/u, however final state interactions and side feeding can strongly deform the response of the different thermometers. (C) 1997 Published by Elsevier Science B.V.
引用
收藏
页码:117 / 134
页数:18
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