Abstract: We describe progress applying the Worldline Formalism of quantum field theory to the fermion propagator dressed by N-photons to study multi-linear Compton scattering processes, explaining how this approach—whose calculational advantages are well-known at multi-loop order—yields compact and manifestly gauge invariant scattering amplitudes.
Obtaining Fully Polarized Amplitudes in Gauge Invariant Form / Ahmadiniaz, N.; Banda Guzman, V. M.; Bastianelli, F.; Corradini, O.; Edwards, J. P.; Schubert, C.. - In: MOSCOW UNIVERSITY PHYSICS BULLETIN. - ISSN 0027-1349. - 77:2(2022), pp. 442-445. (Intervento presentato al convegno 20th Lomonosov Conference on Elementary Particle Physics tenutosi a Online nel 19-25/8/2021) [10.3103/S0027134922020321].
Obtaining Fully Polarized Amplitudes in Gauge Invariant Form
Corradini O.;
2022
Abstract
Abstract: We describe progress applying the Worldline Formalism of quantum field theory to the fermion propagator dressed by N-photons to study multi-linear Compton scattering processes, explaining how this approach—whose calculational advantages are well-known at multi-loop order—yields compact and manifestly gauge invariant scattering amplitudes.
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