论文标题
有限体积校正以向前康普顿散射核子
Finite volume corrections to forward Compton scattering off the nucleon
论文作者
论文摘要
我们计算出在完全一环$ O（p^4）$的明显洛伦兹不变的巴里式手性扰动理论的框架中，在明显的洛伦兹不变的bary骨扰动理论的框架内计算双向前向康普顿散射的旋转幅度。计算是在无限和有限体积中进行的。获得的结果允许详细估算到振幅的有限体积校正，该校正可以使用背景字段技术在晶格上提取。
We calculate the spin-averaged amplitude for doubly virtual forward Compton scattering off nucleons in the framework of manifestly Lorentz invariant baryon chiral perturbation theory at complete one-loop order $O(p^4)$. The calculations are carried out both in the infinite and in a finite volume. The obtained results allow for a detailed estimation the finite-volume corrections to the amplitude which can be extracted on the lattice using the background field technique.
