6533b834fe1ef96bd129e082
RESEARCH PRODUCT
Combining first KamLAND results with solar neutrino data
José W. F. ValleThomas SchwetzMichele Maltonisubject
PhysicsNuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsSolar neutrinoSigmaFOS: Physical sciencesFísicaSolar neutrino problemHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Measurements of neutrino speedHigh Energy Physics::ExperimentAnomaly (physics)NeutrinoNeutrino oscillationMixing (physics)description
We consider the impact of the recent KamLAND data on neutrino oscillations, the first terrestrial neutrino experiment that can probe the solar neutrino anomaly. By combining the first 145.1 days of KamLAND data with the full sample of latest solar neutrino data we find an enhanced rejection against non-LMA oscillations, allowed only at more than 4 sigma with respect to LMA. Furthermore, the new data have a strong impact in narrowing down the allowed range of Delta_m^2 inside the LMA region. In contrast, our global analysis indicates that the new data have little impact on the location of the best fit point. In particular the solar neutrino mixing remains significantly non-maximal (3 sigma).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-12-09 |