Speaker
Description
A class of infinite-dimensional symmetries known as asymptotic symmetries has recently been established as a universal feature of the scattering problem in generic theories of gauge and gravity. These symmetries imply an infinite number of constraints on scattering amplitudes which are equivalent to soft theorems from quantum field theory. Reciprocally, the pattern of soft radiation prescribed by the soft theorems serves as a direct signature of the underlying asymptotic symmetries. An efficient way to determine the pattern of soft radiation is through the memory effect, which detects the relative symmetry transformations induced by soft radiation on pairs of test charges. In short, configurations of soft radiation can be reconstructed from their distinct imprints on an array of test charges. I will present a set of asymptotic symmetries that arise in classical non-Abelian gauge theory and their associated "color memory" effects. Then, I will discuss how these classical color memory effects are ubiquitous in high-energy processes occurring at particle colliders.
| speaker affiliation | New York University |
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