Detectors in Weakly-Coupled Field Theories

One of the main aspects of any CFT is its spectrum of local operators. The scaling dimensions and spins of local operators are believed to lie on analytic curves known as Regge trajectories. Points on Regge trajectories between local operators correspond to non-local light-ray operators. In this talk I will discuss the relationship between the light-ray operators and asymptotic detectors in conformal colliders. Using this correspondence, I will study Regge trajectories in the epsilon-expansion of the Wilson-Fisher fixed point and show that a novel type of horizontal trajectories contributes to correlation functions in the Regge limit. Based on https://arxiv.org/abs/2209.00008.