论文标题
抗核心核子系统的手性有效野外理论中，一杆型交换的重新归一化
Renormalization of One-Pion Exchange in Higher Partial Waves in Chiral Effective Field Theory for Antinucleon-Nucleon System
论文作者
论文摘要
迭代的一杆交换（OPE）的重新规则化已在手学有效野外理论（$χ$ eft）中研究，用于抗核苷 - 核苷（$ \ overline {n} \！n $）在某些部分波浪中的散射（Phys。Cev.C 105，054005（20222））。我们进一步迈出了其他高级局部波，但是本文中有总角度矩$ J \ leq 3 $。接触相互作用由坐标空间中的复杂球形井表示。改变球形井的半径意味着改变截止。我们检查了部分波的相移，非弹性和混合角的截止依赖性，并表明在OPE的单数张量电势具有吸引力的通道中需要进行接触相互作用。将结果与$ \叠加{n} \！n $散射数据的能量依赖性部分波分析进行了比较。还讨论了我们的结论与$χ$ eft在核子核子系统中的比较。
The renormalization of iterated one-pion exchange (OPE) has been studied in Chiral Effective Field Theory ($χ$EFT) for the antinucleon-nucleon ($\overline{N}\!N$) scattering in some partial waves (Phys. Rev. C 105, 054005 (2022)). We go further for the other higher partial waves but with total angular momenta $J\leq 3$ in this paper. Contact interactions are represented by a complex spherical well in coordinate space. Changing the radius of the spherical well means changing the cutoff. We check the cutoff dependence of the phase shifts, inelasticities, and mixing angles for the partial waves, and show that contact interactions are needed at leading order in channels where the singular tensor potentials of OPE are attractive. Results are compared with the energy-dependent partial-wave analysis of $\overline{N}\!N$ scattering data. Comparisons between our conclusions and applications of $χ$EFT to the nucleon-nucleon system are discussed as well.
