Sala Seminarios IFIC (Edf. Institutos de Investigación)
Sala Seminarios IFIC
Edf. Institutos de Investigación
Descripción
The MINOS long baseline neutrino experiment been operating for over six years. In this talk, I will tell the current story of neutrino oscillations using the MINOS measurements. Muon neutrinos disappear in a way consistent with a two-flavor oscillation pattern, are not substantially changing to a sterile neutrino flavor, nor decaying. There is the very interesting question of whether some portion appear as electron neutrinos instead of tau. MINOS sees a hint of an excess of electron flavor consistent with three-flavor oscillations, but background fluctuations are also a reasonable interpretation. Further, because of the unique design of the beam and the magnetized detector, MINOS has measured the anti-neutrino oscillation parameters separately. Anti-neutrinos seem to oscillate with the same parameters of nature as neutrinos. This is currently the most complete exploration of neutrino oscillations by a long-baseline beam experiment, though the next generation of oscillation experiments are already underway.