论文标题
抗核酸核散射的效用，以探测核表面密度分布
Utility of antiproton-nucleus scattering for probing nuclear surface density distributions
论文作者
论文摘要
抗蛋白 - 核心（$ \ bar {p} n $）总横截面通常比数百至千兆瓦的事件能量的$ nn $大3-4倍。我们研究了抗核酸核散射，因为它可以用作核结构的探针，从而使敏感性与质子探针不同。 Glauber模型合理地描述了高能量抗蛋白核反应，并具有最小的配置文件功能，该功能可再现$ \ bar {p} n $和$ \ bar {p} $ - $^{12} $ c Cross截面数据。与质子核散射相反，我们发现由于大型$ \ bar {p} n $基本横截面，完全吸收甚至超出了核半径，这表明对尾部区域的核密度分布的敏感性更强。该灵敏度在具有各种密度谱的总反应横截面中进行了量化，以进行将来的测量，包括富含中子的不稳定核。
Antiproton-nucleon ($\bar{p}N$) total cross sections are typically 3-4 times larger than the $NN$ ones at incident energies from a few hundreds to thousands MeV. We investigate antiproton-nucleus scattering as it could work as a probe of the nuclear structure giving the sensitivity differently from a proton probe. High-energy antiproton-nucleus reactions are reasonably described by the Glauber model with a minimal profile function that reproduces the $\bar{p}N$ and $\bar{p}$-$^{12}$C cross section data. In contrast to the proton-nucleus scattering, we find that the complete absorption occurs even beyond the nuclear radius due to the large $\bar{p}N$ elementary cross sections, which shows stronger sensitivity to the nuclear density distribution in the tail region. This sensitivity is quantified in the total reaction cross sections with various density profiles for future measurement including neutron-rich unstable nuclei.
