Neutrino oscillations in the interaction picture

We study the mixing of different kind of fields (scalar in 0+1D, scalar in 3+1D, fermion in 3+1D) treating the mixing term as an interaction. To this aim, we employ the usual perturbative series in the interaction picture. We find that expression for flavor changing probability exhibits corrections...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2023-08, Vol.83 (8), p.736-13, Article 736
Hauptverfasser:	Blasone, Massimo, Giacosa, Francesco, Smaldone, Luca, Torrieri, Giorgio
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Elementary Particles Fermions Flavor (particle physics) Hadrons Heavy Ions Measurement Science and Instrumentation Neutrinos Nuclear Energy Nuclear Physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum mechanics Regular Article - Theoretical Physics String Theory Theoretical physics
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Beschreibung
Zusammenfassung:	We study the mixing of different kind of fields (scalar in 0+1D, scalar in 3+1D, fermion in 3+1D) treating the mixing term as an interaction. To this aim, we employ the usual perturbative series in the interaction picture. We find that expression for flavor changing probability exhibits corrections with respect to the usual quantum mechanical (e.g. neutrino) oscillation formula, in agreement with the result previously obtained in the non-perturbative flavor Fock space approach.
ISSN:	1434-6052 1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-023-11867-3