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PIRSA:23040080

Smoothly Splitting Amplitudes and Semi-Locality

APA

Gimenez Umbert, B. (2023). Smoothly Splitting Amplitudes and Semi-Locality. Perimeter Institute for Theoretical Physics. https://pirsa.org/23040080

Talk numberPIRSA:23040080
Source RepositoryPIRSA
Talk Type Scientific Series
Subject

Abstract

 I will present a novel behavior developed by scattering amplitudes in certain regions of the kinematic space, in which amplitudes factorize into 3 pieces without becoming singular. This is opposed to what happens in standard factorization or soft limits. We call this behavior a 3-split, and it is "semi-local" in nature. As 3-splits cannot be obtained from standard unitarity arguments, they represent a new phenomenon in QFT. I will introduce 3-splits in their simplest version, i.e. for the biadjoint scalar theory (which I will also introduce). If time allows, I will also comment on how 3-splits arise in other QFTs and how they lead to the discovery of more general theories.

Zoom link:  https://pitp.zoom.us/j/95575818902?pwd=V1RKYW9WMmZQNElVL2VyUGFGMFgxQT09