Work

Flavor neutrinos as unstable particles: an interaction picture view

Year: 2024

Type: conference-paper

Abstract: This paper reviews the similarities in the behavior of unstable particles and oscillating neutrinos using perturbation theory within the interaction picture of quantum field theory. We begin by examining how decaying systems are studied in the interaction picture and then demonstrate how similar calculations can be performed to determine the transition probabilities for flavor oscillations. Notably, the expressions for neutrino oscillations and particle decays are identical in the short-time range. Furthermore, we show that the flavor oscillation formula derived through this method matches, within the adopted approximation, the one obtained using the flavor Fock space approach.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/2883/1/012012

Authors: M Blasone, F Giacosa, L Smaldone, G Torrieri

Institutions: University of Salerno, Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Salerno, Goethe University Frankfurt, Jan Kochanowski University, Universidade Estadual de Campinas (UNICAMP)

Language: English

Topic: Neutrino Physics Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Conselho Nacional de Desenvolvimento Científico e Tecnológico

Awards: G3166950772, Quarkonium polarization and hydrodynamics with spin