PIRSA:23040080

Smoothly Splitting Amplitudes and Semi-Locality

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

Gimenez Umbert, Bruno. Smoothly Splitting Amplitudes and Semi-Locality. Perimeter Institute, Apr. 03, 2023, https://pirsa.org/23040080 

          @misc{ pirsa_PIRSA:23040080,
            doi = {10.48660/23040080},
            url = {https://pirsa.org/23040080},
            author = {Gimenez Umbert, Bruno},
            keywords = {Other},
            language = {en},
            title = {Smoothly Splitting Amplitudes and Semi-Locality},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {apr},
            note = {PIRSA:23040080 see, \url{https://pirsa.org}}
          }

Bruno Gimenez Umbert

Talk number
PIRSA:23040080
Talk Type
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