论文标题

高能量的不完全吸收反应

Incomplete absorption reactions at high energy

论文作者

Makiguchi, Katsuhito, Horiuchi, Wataru

论文摘要

高能核核核碰撞的总反应横截面反映了碰撞核的核密度曲线,并且一直是研究短寿命不稳定核的大小特性的标准工具。此基础依赖于以下假设:核核碰撞在光学模型的意义上具有强烈的吸收性。但是,当两个碰撞核的重叠密度足够低时,该特性并不能完全保持吸收。在本文中,我们提出了一种量化这种不完整性的方法,即总反应横截面的“黑度”。通过以富含质子的C同位素的总反应横截面为例,可以提取这种定量的重要性。

The total reaction cross section of high-energy nucleus-nucleus collision refects the nuclear density profiles of the colliding nuclei and has been a standard tool to investigate the size properties of short-lived unstable nuclei. This basis relies on the assumption that the nucleus-nucleus collision is strongly absorptive in the sense of an optical model. However, this property does not hold completely, while incomplete absorption occurs when an overlap density of two colliding nuclei is low enough. In this paper, we propose a way to quantify this incompleteness, that is, the "blackness" of the total reaction cross section. A significance of this quantification is drawn by taking an example of the total reaction cross sections of proton-rich C isotopes.

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