Speaker
David Podivín
Description
We use the toolbox of modern amplitude methods to examine a theory that has been mostly neglected Quantum electrodynamics. In this work we have focused on maximum helicity violating (MHV) amplitudes in massless electrodynamics. Formulas for arbitrary number of external photons for some processes are presented . There we recursively show that the defining property of these amplitudes is just the soft photon theorem. We present this derivation for spinor, scalar and vector electrodynamics through recursion relations. All results are derived fully from symmetry and analytical structure of the underlying theory without the need to look at action or the standard Feynman rules.
Primary authors
David Podivín
Karol Kampf
(Charles University (CZ))
