Extended Glauber Model of Antiproton-Nucleus Annihilation for All Energies and Mass Numbers
Extended Glauber Model of Antiproton-Nucleus Annihilation for All Energies and Mass Numbers
复制标题
所有能量和质量数的反质子核湮灭的扩展格劳伯模型
DOI：
--
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
C. Wong
中科院分区：
文献类型：
--
作者：
T. Lee;C. Wong
利用Wong提出的Glauber模型中的解析公式，考虑库仑相互作用、核相互作用以及核内反质子动量的变化，研究了高能和低能下的反质子-核湮灭.扩展的解析公式捕捉的主要特点的实验反质子核湮灭截面的所有能量和质量数。在高的反质子能量下，它们对于最轻的核表现出颗粒性质，对于重核表现出黑盘极限。在较低的反质子能量下，它们表现出由于轻核的核相互作用引起的反质子动量增加的效应，以及由于重核的吸引库仑相互作用引起的放大效应。
Previous analytical formulas in the Glauber model for high-energy nucleus-nucleus collisions developed by Wong are utilized and extended to study Antiproton-nucleus annihilations for both high and low energies, after taking into account the effects of Coulomb and nuclear interactions, and the change of the antiproton momentum inside a nucleus. The extended analytical formulas capture the main features of the experimental antiproton-nucleus annihilation cross sections for all energies and mass numbers. At high antiproton energies, they exhibit the granular property for the lightest nuclei and the black-disk limit for the heavy nuclei. At low antiproton energies, they display the effect of the antiproton momentum increase due to the nuclear interaction for the light nuclei, and the effect of the magnification due to the attractive Coulomb interaction for the heavy nuclei.