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physics.hist-ph2023
The Ontology of Compositeness Within Quantum Field Theory
Toby Peterken
In this work, we attempt to define a notion of compositeness compatible with Quantum Field Theory. Considering the analytic properties of the S-matrix, we conclude that there is no…
hep-lat2023
Higher partial wave contamination in finite-volume 1-to-2 transitions
Toby Peterken, Maxwell T. Hansen
In their seminal work, Lellouch and Lüscher derived a conversion factor relating a finite-volume matrix element, calculable using numerical lattice QCD, with the infinite-volume de…