论文标题
光核中的准牙龙
Quasideuterons in Light Nuclei
论文作者
论文摘要
对核素对的配对相关性与isospin $ t = 1 $和$ t = 0 $的作用进行了研究，该核在群众区域$ 12 \ leq a \ leq a \ leq 42 $。为此，分析了一个和两个主要壳的核壳模型计算产生的两种核子密度。由于$ t = 0 $对的形成，观察到对所得能量的显着影响。对于$ n = z $的对称核的准deuterons的形成是最大的。 $ t = 0 $对的形成对接近费米能量的单粒子状态的密度不如$ t = 1 $配对敏感，并且对于跨壳壳的激发也很重要。这种鲁棒性还解释了为什么$ t = 0 $配对不会导致如此明确的证据比较邻居核的能量，因为由于$ t = 1 $配对，因此邻居的核的能量是“奇怪的质量差异”。
The role of pairing correlations for nucleon pairs with isospin $T=1$ and $T=0$ is investigated for nuclei in the mass region $12 \leq A \leq 42$. For that purpose the two-nucleon densities resulting from nuclear shell-model calculations in one and two major shells are analyzed. Significant effects on the resulting energies are observed due to the formation of $T=0$ pairs. The formation of quasi-deuterons is maximal for symmetric nuclei with $N=Z$. The formation of $T=0$ pairs is less sensitive to the density of single-particle states close to the Fermi energy than the $T=1$ pairing and is relevant also for excitations across shell-closures. This robustness also explains why $T=0$ pairing does not lead to such a clear evidence in comparing energies of neighbored nuclei as the "odd-even mass staggering" due to the formation of $T=1$ pairing.
