Probing neutrino quantum decoherence at reactor experiments

André de Gouvêa, Valentina De Romeri, Christoph A. Ternes*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We explore how well reactor antineutrino experiments can constrain or measure the loss of quantum coherence in neutrino oscillations. We assume that decoherence effects are encoded in the size of the neutrino wave-packet, σ. We find that the current experiments Daya Bay and the Reactor Experiment for Neutrino Oscillation (RENO) already constrain σ > 1.0×10−4 nm and estimate that future data from the Jiangmen Underground Neutrino Observatory (JUNO) would be sensitive to σ < 2.1 × 10−3 nm. If the effects of loss of coherence are within the sensitivity of JUNO, we expect σ to be measured with good precision. The discovery of nontrivial decoherence effects in JUNO would indicate that our understanding of the coherence of neutrino sources is, at least, incomplete.

Original languageEnglish (US)
Article number18
JournalJournal of High Energy Physics
Volume2020
Issue number8
DOIs
StatePublished - Aug 1 2020

Keywords

  • Beyond Standard Model
  • Neutrino Physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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