The MSW Effect in Quantum Field Theory

Abstract

We show in detail the general relationship between the Schrödinger equation approach to calculating the MSW effect and the quantum field theoretical S-matrix approach. We show the precise form a generic neutrino propagator must have to allow a physically meaningful ``oscillation probability'' to be decoupled from neutrino production fluxes and detection cross-sections, and explicitly list the conditions---not realized in cases of current experimental interest---in which the field theory approach would be useful.

20 page REVTeX file, submitted to Phys. Rev. D

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• Towards a unique formula for neutrino oscillations in vacuum
• Coherence of neutrino flavor mixing in quantum field theory
• Neutrino oscillations from relativistic flavor currents
• Fermion mixing in quasi-free states
• Photon mixing in universes with large extra-dimensions
• Extended Grimus-Stockinger theorem and inverse square law violation in quantum field theory
• Covariant asymmetric wave packet for a field-theoretical description of neutrino oscillations
• Towards a Localised S-Matrix Theory
• Quantum field theory treatment of neutrino flavor oscillations in matter
• Evolution of coupled fermions under the influence of an external axial-vector field
• Virtual neutrino propagation at short baselines
• Neutrino oscillations in matter: from microscopic to macroscopic description
• Neutrino propagation in media and axis of complete polarization
• Tritium beta decay with modified neutrino dispersion relations: KATRIN in the dark sea
• All-flavor constraints on nonstandard neutrino interactions and generalized matter potential with three years of IceCube DeepCore data
• Quantum field theory treatment of oscillations of Dirac neutrinos in external fields