Combined analysis of neutrino decoherence at reactor experiments
André de Gouvêa, Valentina De Romeri, Christoph A. Ternes
Abstract
A bstract Reactor experiments are well suited to probe the possible loss of coherence of neutrino oscillations due to wave-packets separation. We combine data from the short-baseline experiments Daya Bay and the Reactor Experiment for Neutrino Oscillation (RENO) and from the long baseline reactor experiment KamLAND to obtain the best current limit on the reactor antineutrino wave-packet width, σ > 2 . 1 × 10 − 4 nm at 90% CL. We also find that the determination of standard oscillation parameters is robust, i.e., it is mostly insensitive to the presence of hypothetical decoherence effects once one combines the results of the different reactor neutrino experiments.
Topics & Concepts
PhysicsNeutrino oscillationNeutrinoQuantum decoherenceParticle physicsCoherence (philosophical gambling strategy)Nuclear physicsOscillation (cell signaling)Limit (mathematics)Coherence lengthSterile neutrinoMeasurements of neutrino speedPhysics beyond the Standard ModelStandard Model (mathematical formulation)CP violationSolar neutrino problemCurrent (fluid)Electron neutrinoNeutrino detectorSolar neutrinoLeptonNeutrino Physics ResearchParticle physics theoretical and experimental studiesQuantum and Classical Electrodynamics