6533b85ffe1ef96bd12c12b2
RESEARCH PRODUCT
Global status of neutrino oscillation parameters after Neutrino-2012
Mariam TórtolaD. V. ForeroJose W.f. Vallesubject
Nuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsSolar neutrinoFOS: Physical sciencesCHOOZ01 natural sciencesHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)0103 physical sciences010306 general physicsNeutrino oscillationPhysicsNOνA010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyFísicaSolar neutrino problemHigh Energy Physics - PhenomenologyMINOSMeasurements of neutrino speedHigh Energy Physics::ExperimentNeutrinodescription
Here we update the global fit of neutrino oscillations in arXiv:1103.0734 and arXiv:1108.1376 including the recent measurements of reactor antineutrino disappearance reported by the Double Chooz, Daya Bay and RENO experiments, together with latest MINOS and T2K appearance and disappearance results, as presented at the Neutrino-2012 conference. We find that the preferred global fit value of $\theta_{13}$ is quite large: $\sin^2\theta_{13} \simeq 0.025$ for normal and inverted neutrino mass ordering, with $\theta_{13} = 0$ now excluded at more than 10$\sigma$. The impact of the new $\theta_{13}$ measurements over the other neutrino oscillation parameters is discussed as well as the role of the new long-baseline neutrino data and the atmospheric neutrino analysis in the determination of a non-maximal atmospheric angle $\theta_{23}$.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-05-17 |