论文标题
手性扰动理论中的三杆散射
Three-pion scattering in Chiral Perturbation Theory
论文作者
论文摘要
我们在低能的相对论六杆散射幅度上介绍了结果，在$ \ Mathcal {o}（p^4）$中计算出大量$ \ text {o}（o}（n）$ nonlinear sigma模型的框架内，延伸到了授课计数中的近次领先顺序。对于$ n = 3 $，此方法对应于两个（ - Quark） - 最喜欢的手性扰动理论。在$ \ Mathcal {o}（p^4）$的情况下，我们还介绍了派质质量，腐烂常数和四杆振幅的表达式。
We present the results on the relativistic six-pion scattering amplitude at low energy, calculated at $\mathcal{O}(p^4)$ within the framework of the massive $\text{O}(N)$ nonlinear sigma model extended to the next-to-leading order in the chiral counting. For $N=3$, this approach corresponds to the two(-quark)-flavor Chiral Perturbation Theory. We also present the expressions for the pion mass, pion decay constant and the four-pion amplitude in the case of $N$ (meson) flavors at $\mathcal{O}(p^4)$.
