Non-unitary neutrino propagation from neutrino decay

Autor(es)

Berryman, Jeffrey M. ^[1] ; de Gouvea, Andre ^[1] ; Hernandez, Daniel ^[1] ; Oliveira, Roberto L. N. ^{[2, 1]}

Afiliação do(s) autor(es)

^[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 - USA

^[2] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physics Letters B; v. 742, p. 74-79, MAR 6 2015.
• Citações Web of Science: 14

Resumo

Neutrino propagation in space-time is not constrained to be unitary if very light states-lighter than the active neutrinos-exist into which neutrinos may decay. If this is the case, neutrino flavor-change is governed by a handful of extra mixing and ``oscillation{''} parameters, including new sources of CP-invariance violation. We compute the transition probabilities in the two-and three-flavor scenarios and discuss the different phenomenological consequences of the new physics. These are qualitatively different from other sources of unitarity violation discussed in the literature. (C) 2015 The Authors. Published by Elsevier B.V. (AU)

• Processo FAPESP: 13/11651-2 - Explorando o potencial de nova física com o "long baseline neutrino experiment": investigando dissipação quântica em um experimento de alta precisão
• Beneficiário: Roberto Leandro Neves de Oliveira
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado