1–7 déc. 2013
Relais du Moulin Neuf, Barbaste, Lot-et-Garonne
Fuseau horaire Europe/Paris

Search for a 4th neutrino state with CeLAND

3 déc. 2013, 15:40
25m
Relais du Moulin Neuf, Barbaste, Lot-et-Garonne

Relais du Moulin Neuf, Barbaste, Lot-et-Garonne

47-230 Barbaste
Neutrinos Neutrinos

Orateur

Vincent Fischer (CEA Saclay, IRFU, SPP)

Description

Several anomalies observed in neutrino oscillation data can be explained by a hypothetical fourth neutrino separated from the three standard neutrinos by a squared mass difference of a few eV2. We show that this hypothesis can be tested with a PBq (ten kilocurie scale) 144Ce antineutrino beta source deployed at the center of the KamLAND detector. In particular, the compactness of such a source with respect to the important size of the detector could yield an energy-dependent oscillating pattern in event spatial distribution that would unambiguously determine these new neutrino mass differences and mixing angles.

Auteur principal

Vincent Fischer (CEA Saclay, IRFU, SPP)

Documents de présentation