论文标题
光子散射的边界
Bounds on photon scattering
论文作者
论文摘要
我们研究了无质量自旋一颗粒的2-2散射幅度$ d = 4 $时空尺寸，例如现实世界的光子。我们定义了一组非扰动的可观察物（Wilson系数），这些物质描述了这些幅度低的能量。我们使用完整的非线性单位性来在这些可观察物上构建各种新颖的数值界限。为了完整性，我们还仅使用阳性来重新逐步范围。我们发现并解释了为什么这些威尔逊系数中的某些无法界定。
We study 2-to-2 scattering amplitudes of massless spin one particles in $d=4$ space-time dimensions, like real world photons. We define a set of non-perturbative observables (Wilson coefficients) which describe these amplitudes at low energies. We use full non-linear unitarity to construct various novel numerical bounds on these observables. For completeness, we also rederive some bounds using positivity only. We discover and explain why some of these Wilson coefficients cannot be bounded.
