Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series P^3
Subjects hep-ph,hep-th
Date Tuesday 23 February 2021
Time 16:00
Institute IHP
Seminar Room Seminar via zoom https://ijclab.zoom.us/j/94900481972
Speaker's Last Name Thaler
Speaker's First Name Jesse
Speaker's Email Address
Speaker's Institution MIT
Title The Hidden Geometry of Particle Collisions
Abstract In this talk, I explain how various concepts and techniques in quantum field theory and collider physics can be naturally translated into a new geometric language. Using the energy mover's distance, which quantifies the minimal amount of "work" required to rearrange one event into another, we can define a distance between pairs of collider events. This distance can then be used to triangulate the "space" of collider events and rigorously define various geometric objects. Many well-known collider observables, jet algorithms, and pileup mitigation schemes have a simple geometric interpretation, as does the important concept of infrared and collinear safety. Intriguingly, these ideas can be lifted from a distance between events into a distance between theories, with potential relevance for visualizing and interpreting data from the LHC.
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