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Combined analysis of neutrino decoherence at reactor experiments

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arxiv 2104.05806 v2 pith:B7HLGBW4 submitted 2021-04-12 hep-ph hep-exquant-ph

classification hep-phhep-exquant-ph
keywords reactorexperimentsneutrinodecoherenceexperimentoscillationanalysisantineutrino
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

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, $\sigma > 2.1 \times 10^{-4}$ 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.

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Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Real and Virtual Propagation in Neutrino Oscillations

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    In Gaussian wave-packet QFT, flavor oscillations switch on only after a propagation-time threshold set by the wave-packet energy uncertainty and the intermediate particle's decay width; below it the neutrino is purely...

  2. Generalized Lindblad master equation for neutrino evolution

    hep-ph 2024-11 conditional novelty 6.0 of 10

    Derives a generalized Lindblad master equation for neutrino evolution with momentum-changing decay and absorption of massless particles, and translates a reactor decoherence bound into a neutrino lifetime limit.

  3. Impact of different neutrino decoherence formalisms at the future long-baseline Experiments

    hep-ph 2026-04 unverdicted novelty 5.0 of 10

    Two bases for the neutrino decoherence matrix yield identical vacuum probabilities at small Gamma but diverge at large Gamma or with strong matter effects, altering chi-squared sensitivities at DUNE and P2SO.

  4. Ultralight dark matter search in a large liquid scintillator detector

    hep-ph 2025-12 conditional novelty 5.0 of 10

    A JUNO-like detector could constrain the neutrino–ultralight-dark-matter oscillation-modulation parameters to ηΔ21 < 2.5×10^-2 and ηΔ31 < 5×10^-3 at 90% CL.

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