10-17 July 2019
Ghent
Europe/Brussels timezone

The legacy of the OPERA experiment on neutrino oscillations

12 Jul 2019, 17:25
20m
Campus Ledeganck - Aud. 4 (Ghent)

Campus Ledeganck - Aud. 4

Ghent

Parallel talk Neutrino Physics Neutrino Physics

Speaker

Giuliana Galati

Description

The OPERA experiment has conclusively observed the appearance of tau neutrinos in the muon neutrino CNGS beam. High purity samples of nu-e, nu-mu and nu-tau charged current weak neutrino interactions, as well as neutral current weak interactions were isolated.
In this talk recent results obtained using the full dataset to test the three-flavor neutrino oscillation model are discussed. Constraints on the existence of a light sterile neutrino, derived using for the first time tau and electron neutrino appearance channels, are also presented. A significant fraction of the sterile neutrino parameter space allowed by LSND and MiniBooNE experiments is excluded at 90% C.L. In particular, the best-fit oscillation parameter values obtained by MiniBooNE are excluded at 3.3 significance.

Primary author

Presentation Materials