Neutrino Oscillations in Finite Time Path Out-of-Equilibrium Thermal Field Theory

Dadić, Ivan; Klabučar, Dubravko (2023) Neutrino Oscillations in Finite Time Path Out-of-Equilibrium Thermal Field Theory. Symmetry, 15 (11). ISSN 2073-8994

PDF - Published Version - article Available under License Creative Commons Attribution. Download (367kB)

Abstract

We demonstrate that the Finite-Time-Path Field Theory is an adequate tool for calculating neutrino oscillations. We apply this theory using a mass-mixing Lagrangian which involves the correct Dirac spin and chirality structure and a Pontecorvo–Maki–Nakagawa–Sakata (PMNS)-like mixing matrix. The model is exactly solvable. The Dyson–Schwinger equations transform propagators of the input free (massless) flavor neutrinos into a linear combination of oscillating (massive) neutrinos. The results are consistent with the predictions of the PMNS matrix while allowing for extrapolation to early times.

Item Type:	Article
Uncontrolled Keywords:	neutrino; oscillation; finite-time path; quantum field theory
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Theoretical Physics Division
Depositing User:	Ivana Vuglec
Date Deposited:	01 Apr 2026 11:24
URI:	http://fulir.irb.hr/id/eprint/11557
DOI:	10.3390/sym15111970

Actions (login required)

View Item