【摘要】 用非完全熔合碎裂模型来分析600MeV/u Au+Au 反应中弹剩余核的多重碎裂现象.理论计算得到的弹剩余核质量数、激发能及热力学温度与实验数据基本一致,很好地解释了 Au+Au 反应中热力学温度随每核子激发能变化而出现的回弯现象,使衰变模式相变和液气相变统一起来.更多还原

【Abstract】 Incomplete-Fusion-Fragmentation Model is used to analyze the multifragmentation of the projectile remnant in 600MeV/u Au+Au reaction.The theoretical results of the mass number,the excitation energy and the thermodynamical temperature of the projectile remnant agree well with experimental data.The backbending structure in the curve of temperature as a function of the excitation energy per nucleon,i.e.the evi- dence of liquid-gas phase transition,is reproduced and reasonably related to the de- cay modes phase transformation from dominance of the multifragmentation mode to the vaporization mode.更多还原