论文标题
同步约束来源的大小
Isoscaling constraining sources' sizes
论文作者
论文摘要
在统计多碎片模型的框架中，扩展了核等镜分析，以约束在两个重离子之间碰撞中形成的衰减来源的大小之间的比率。发现在每个事件中观察n个碎片的概率之间的比率，对于每个来源，都遵循比例定律，类似于传统的核等镜。但是，相应的斜率也对源的大小敏感。使用宏伟的典型合奏对此属性进行分析解释。还研究了我们的发现受到有限尺寸效应的影响以及受热主要碎片的否定的程度。缩放事实证明是强大的，并且受到这两个方面所隐含的效果的影响。我们还发现，泊松分布是与上述概率相当良好的近似值，这与在分手阶段产生的原始片段相关，而在片段去激发过程结束时发现的最终片段则是相当良好的近似值。
In the framework of the Statistical Multifragmentation Model, the nuclear isoscaling analysis is extended to constrain the ratio between the sizes of the decaying sources formed in a collision between two heavy ions. It is found that the ratio between the probabilities of observing n fragments in each event, for each of the sources, follows a scaling law, similar to the traditional nuclear isoscaling. However, the corresponding slope is also sensitive to the sources' sizes. This property is explained analytically using the grand-canonical ensemble. The extent to which our findings are affected by finite size effects and by the deexcitation of the hot primary fragments is also investigated. The scaling turns out to be robust and weakly affected by effects implied by these two aspects. We also find that the Poisson distribution is a fairly good approximation to the above mentioned probabilities, associated with both the primordial fragments, produced at the breakup stage, and the final ones, found at the end of the fragment deexcitation process.
