3 papers
hep-th2019
Masses and electric charges: gauge anomalies and anomalous thresholds
Cesar Gomez, Raoul Letschka
We work out in the forward limit and up to order in perturbation theory the collinear divergences. In this kinematical regime we discover new collinear divergences that we ar…
hep-th2018
The Scales of the Infrared
Cesar Gomez, Raoul Letschka, Sebastian Zell
In theories with long-range forces like QED or perturbative gravity, loop corrections lead to vanishing amplitudes. There are two well-known procedures to address these infrared di…
hep-th2017
Damping self-forces and Asymptotic Symmetries
Cesar Gomez, Raoul Letschka
Energy conservation in radiating processes requires, at the classical level, to take into account damping forces on the sources. These forces can be represented in terms of asympto…