7–14 mars 2009
La Thuile
Fuseau horaire Europe/Paris

Neutrino data and implications for theta_13

13 mars 2009, 17:00
20m
La Thuile

La Thuile

Rencontres de Moriond Planibel Hotel - La Thuile Aosta Valley 11016 La Thuile (Aosta), Italy Phone : 39 (0)1 65 88 45 41 Fax : 39 (0)1 65 88 45 35

Orateur

Dr Antonio Palazzo (IFIC, CSIC/University of Valencia)

Description

Pinning down the unknown neutrino mixing angle theta_13 is one of the most important goals in particle physics in connection with future investigation on CP violation in the leptonic sector. In this context, I shall present the results of an updated global analysis of neutrino oscillation data, focusing on this puzzling parameter. I shall discuss two independent and converging hints of theta_13 > 0. An older one coming from atmospheric neutrino data, and a newer one coming from the combination of solar and long-baseline reactor neutrino data. Their combination provides an intriguing preference for theta_13 > 0 at a non-negligible statistical significance ( 90% C.L.). I will discuss possible refinements of the data analyses, which might sharpen such indications.

Auteurs principaux

Dr Anna Maria Rotunno (University of Bari) Dr Antonio Marrone (University of Bari) Dr Antonio Palazzo (IFIC, CSIC/University of Valencia) Prof. Eligio Lisi (INFN, Bari) Prof. Gian Luigi Fogli (University of Bari & INFN, Bari)

Documents de présentation