Atmospheric neutrino observations and flavor changing interactions

Flavor changing (FC) neutrino-matter interactions can account for the zenith-angle-dependent deficit of atmospheric neutrinos observed in the SuperKamiokande experiment, without directly invoking either neutrino mass or mixing. We find that FC nm-matter interactions provide a good fit to the observe...

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Detalhes bibliográficos
Autores: González García, Ma. Concepción, Guzzo, M. M., Krastev, P. I., Nunokawa, H., Peres, O. L. G., Pleitez, V., Valle, José Wagner Furtado, Zukanovich Funchal, R.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:1999
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/12848
Acesso em linha:https://hdl.handle.net/2445/12848
Access Level:acceso abierto
Palavra-chave:Partícules (Física nuclear)
Reaccions nuclears
Particles (Nuclear physics)
Nuclear reactions
Descrição
Resumo:Flavor changing (FC) neutrino-matter interactions can account for the zenith-angle-dependent deficit of atmospheric neutrinos observed in the SuperKamiokande experiment, without directly invoking either neutrino mass or mixing. We find that FC nm-matter interactions provide a good fit to the observed zenith angle distributions, comparable in quality to the neutrino oscillation hypothesis. The required FC interactions arise naturally in many attractive extensions of the standard model.

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