论文标题
在抗核子核子散射的手性有效野外理论中，一杆交换的重新归一化
Renormalization of One-Pion Exchange in Chiral Effective Field Theory for Antinucleon-Nucleon Scattering
论文作者
论文摘要
迭代的一杆交换（OPE）的重新归一化是通过手性有效野外理论（$χ$ eft）研究的，用于antinucleon-nucleon（$ \ overline {n} \！n $）系统。 OPE电位在一定距离处切断，接触相互作用由相同半径的复杂球形井表示。我们研究了对相移，非弹性的截止半径的依赖性，并在$ \ overline {n} \！n $散射中为低部分波的低部分混合角度。我们表明，与基于天真的维度分析的期望相比，重归其化需要额外的接触相互作用。将重归其化后的结果与$ \ overline {n} \！n $数据的最新能量依赖性部分波分析进行了比较。我们将结论与$χ$ eft的应用与核子核子系统的应用进行比较。
The renormalization of iterated one-pion exchange (OPE) is studied in Chiral Effective Field Theory ($χ$EFT) for the antinucleon-nucleon ($\overline{N}\!N$) system. The OPE potential is cut off at a certain distance and contact interactions are represented by a complex spherical well with the same radius. We investigate the dependence on the cutoff radius of the phase shifts, inelasticities, and mixing angles for the low partial waves in $\overline{N}\!N$ scattering. We show that renormalization requires additional contact interactions compared to the expectation based on naive dimensional analysis. Results after renormalization are compared with the state-of-the-art energy-dependent partial-wave analysis of $\overline{N}\!N$ data. We compare our conclusions with applications of $χ$EFT to the nucleon-nucleon system.
