标题： 五点超光速界限 显示英文标题

标题： Five-point Superluminality Bounds

摘要： 我们研究物理激发的传播速度如何被五点相互作用系数所编码。 这导致了对标量五点相互作用的超光速限制，这是我们首次提出。 为了证实我们的结果，我们还考虑了四点相互作用的情况，对于这种情况存在S矩阵求和规则的界限，并表明这些界限与我们在分析中获得的界限在参数上是等价的。 最后，我们将讨论扩展到一类高点相互作用。 显示英文摘要

摘要： We investigate how the speed of propagation of physical excitations is encoded in the coefficients of five-point interactions. This leads to a superluminality bound on scalar five-point interactions, which we present here for the first time. To substantiate our result, we also consider the case of four-point interactions for which bounds from S-matrix sum rules exist and show that these are parametrically equivalent to the bounds obtained within our analysis. Finally, we extend the discussion to a class of higher-point interactions.