Abstract
AbstractWe 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.
Funder
Narodowe Centrum Nauki
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Narodowa Agencja Wymiany Akademickiej
Centros de Pesquisa, Inovação e Difusão, Fundação Amazônia Paraense de Amparo á Pesquisa
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
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