Non-unitarity and non-standard neutrino interactions

por Enrique Fernández Martínez (Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München)

martes 11 nov. 2008 12:00 → 13:00 Europe/Madrid

Sala Seminarios (Dpto. de Física Teórica (UVEG))

We briefly review how simple extensions of the Standard Model to accommodate neutrino masses can lead to a non-unitary mixing matrix. We then analyze the impact of dropping the unitarity assumption on present and prospective neutrino oscillation data. These effects can be parameterized as non-standard neutrino interactions (NSI) at the source, detector and in matter. We will discuss in general how these NSI can be realized through SM extensions and study the necessary to conditions to avoid similar non-standard contributions in the much better constrained charged lepton sector.