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Physics of Particles and Nuclei

Quantum Field Theory Beyond the S-Matrix Formalism

Igor' Pavlovich Volobuev, Vadim Olegovich Egorov

Published Jul 1, 2020• 0 citations
Publisher

Abstract

Abstract Particle transitions passing over finite space and time intervals are self-consistently described within a novel quantum field-theoretical approach based on Feynman diagrams in configuration space. The transition to momentum space is performed following the rules modified so as to consider the geometry of neutral-meson and neutrino oscillation experiments. Using the processes of decay of an unstable scalar particle at a macroscopic distance from the source and of neutral kaon and neutrino oscillations as examples, we demonstrate that their known characteristics are adequately reproduced within the proposed approach.

DOI
10.1134/s1063779620040760

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