论文标题
在协方差式巴属性手性扰动理论中对核子核子相互作用的两杆交换贡献
Two-Pion-Exchange contributions to the nucleon-nucleon interactions in covariant baryon chiral perturbation theory
论文作者
论文摘要
我们采用协变量的手性手性扰动理论，计算出对$ nn $互动的领先和临时订单两杆式交易所（TPE）捐款，直到$ o（p^3）$。 We compare the so-obtained $NN$ phase shifts with $2\leq L\leq 6$ and mixing angles with $2\leq J\leq6$ with those obtained in the nonrelativistic baryon chiral perturbation theory, which allows us to check the relativistic corrections to the medium-range part of $NN$ interactions.我们表明，相对论TPE的贡献比非派别TPE的贡献更为温和。相对论校正在F波中起着重要作用，尤其是$^3 \ text {f} _2 $ partial Wave。此外，相对论的结果似乎比非依赖主义结果比在本工作中研究的几乎所有部分波的收敛速度更快，这与在一巴里族中进行的研究一致。
Employing the covariant baryon chiral perturbation theory, we calculate the leading and next-to-leading order two-pion exchange (TPE) contributions to $NN$ interaction up to order $O(p^3)$. We compare the so-obtained $NN$ phase shifts with $2\leq L\leq 6$ and mixing angles with $2\leq J\leq6$ with those obtained in the nonrelativistic baryon chiral perturbation theory, which allows us to check the relativistic corrections to the medium-range part of $NN$ interactions. We show that the contributions of relativistic TPE are more moderate than those of the nonrelativistic TPE. The relativistic corrections play an important role in F-waves especially the $^3\text{F}_2$ partial wave. Moreover, the relativistic results seem to converge faster than the nonrelativistic results in almost all the partial waves studied in the present work, consistent with the studies performed in the one-baryon sector.
