论文标题
重新审视散射幅度的软辐射
Soft Radiation from Scattering Amplitudes Revisited
论文作者
论文摘要
我们应用了Kosower，Maybee和O'Connell（KMO）最近开发的形式主义，以分析由颗粒在四个和更高尺寸中旋转的颗粒发出的软电磁和软重力辐射。我们将这种形式主义与量子软定理结合使用，以在低频膨胀中得出辐射的电磁和重力场，并在耦合中的领先顺序中差一点。我们表明，在各个方面，子领先的软（光子和重力）定理的经典极限与Sen等人在一系列论文中证明的经典软定理一致。特别是Saha，Sahoo和Sen证明了四个维度的电磁和重力辐射的经典软定理。对于可以使用KMO形式主义分析的散射过程类别，我们表明量子软定理的经典限制与这些经典的软定理一致，为它们的散射幅度证明铺平了道路。
We apply the recently developed formalism by Kosower, Maybee and O'Connell (KMO) to analyse the soft electromagnetic and soft gravitational radiation emitted by particles without spin in Four and higher dimensions. We use this formalism in conjunction with quantum soft theorems to derive radiative electro-magnetic and gravitational fields in low frequency expansion and to next to leading order in the coupling. We show that in all dimensions, the classical limit of sub-leading soft (photon and graviton) theorems is consistent with the classical soft theorems proved by Sen et al in a series of papers. In particular Saha, Sahoo and Sen proved classical soft theorems for electro-magnetic and gravitational radiation in Four dimensions. For the class of scattering processes that can be analyzed using KMO formalism, we show that the classical limit of quantum soft theorems is consistent with these classical soft theorems, paving the way for their proof from scattering amplitudes.
