论文标题
手性方法巨大的旋转
Chiral approach to massive higher spins
论文作者
论文摘要
我们提出了一个新的手性描述，用于四个时空维度中的大型高自旋颗粒，这有助于引入一致的相互作用。作为概念证明，我们制定了三种理论，其中高旋转物与电动力学，非亚伯仪理论或重力耦合。这些理论是手性的，具有简单的拉格朗日人，导致了类似于大规模标量的法规规则。从这些Feynman规则开始，我们将带有两个高旋转物颗粒和任何数量的正螺旋光子，胶子或重力群的树级散射幅度。幅度振幅重现了在平均持有性的环境中通过壳递归获得的任意多物质结果，因此有一种共同的手性和非手续理论。所介绍的理论是目前唯一具有大型高自旋字段的一致相互作用理论的示例。
We propose a new, chiral description for massive higher-spin particles in four spacetime dimensions, which facilitates the introduction of consistent interactions. As proof of concept, we formulate three theories, in which higher-spin matter is coupled to electrodynamics, non-Abelian gauge theory or gravity. The theories are chiral and have simple Lagrangians, resulting in Feynman rules analogous to those of massive scalars. Starting from these Feynman rules, we derive tree-level scattering amplitudes with two higher-spin matter particles and any number of positive-helicity photons, gluons or gravitons. The amplitudes reproduce the arbitrary-multiplicity results that were obtained via on-shell recursion in a parity-conserving setting, and which chiral and non-chiral theories thus have in common. The presented theories are currently the only examples of consistent interacting field theories with massive higher-spin fields.
