Decoherence effects in reactor and Gallium neutrino oscillation experiments -- a QFT approach

Abstract

We adopt the quantum field theoretical method to calculate the amplitude and event rate for a neutrino oscillation experiment, considering neutrino production, propagation and detection as a single process. This method allows to take into account decoherence effects in the transition amplitude induced by the quantum mechanical uncertainties of all particles involved in the process. We extend the method to include coherence loss due to interactions with the environment, similar to collisional line broadening. In addition to generic decoherence induced at the amplitude level, the formalism allows to include, in a straightforward way, additional damping effects related to phase-space integrals over momenta of unobserved particles as well as other classical averaging effects. We apply this method to neutrino oscillation searches at reactor and Gallium experiments and confirm that quantum decoherence is many orders of magnitudes smaller than classical averaging effects and therefore unobservable. The method used here can be applied with minimal modifications also to other types of oscillation experiments, e.g., accelerator based beam experiments.

arXiv comment20 pages + 3 appendices and references

References in corpus (47)

• Neutrino Physics with JUNO
• Reanalysis of the GALLEX solar neutrino flux and source experiments
• Sterile neutrino search at NEOS Experiment
• Measurement of the response of a Ga solar neutrino experiment to neutrinos from an 37Ar source
• Oscillations of neutrinos and mesons in quantum field theory
• Measurement of electron antineutrino oscillation based on 1230 days of operation of the Daya Bay experiment
• Search for sterile neutrinos at the DANSS experiment
• Paradoxes of neutrino oscillations
• On the Treatment of Neutrino Oscillations Without Resort to Weak Eigenstates
• Results from the Baksan Experiment on Sterile Transitions (BEST)
• Real Oscillations of Virtual Neutrinos
• Coherence of neutrino oscillations in the wave packet approach
• Improved Short-Baseline Neutrino Oscillation Search and Energy Spectrum Measurement with the PROSPECT Experiment at HFIR
• Coherence Effects in Neutrino Oscillations
• When the Wavepacket is Unnecessary
• A Search for Electron Neutrino Transitions to Sterile States in the BEST Experiment
• Neutrino oscillations: Quantum mechanics vs. quantum field theory
• Reactor antineutrino anomaly in light of recent flux model refinements
• The field-theoretical approach to coherence in neutrino oscillations
• Sterile Neutrinos or Flux Uncertainties? - Status of the Reactor Anti-Neutrino Anomaly
• Coherence of neutrino flavor mixing in quantum field theory
• Stereo neutrino spectrum of 235U fission rejects sterile neutrino hypothesis
• Reconciling results of LSND, MiniBooNE and other experiments with soft decoherence
• Neutrino oscillations in a model with a source and detector
• Quantum decoherence and neutrino data
• Equivalence between Gaussian averaged neutrino oscillations and neutrino decoherence
• Statistical significance of the sterile-neutrino hypothesis in the context of reactor and gallium data
• When do neutrinos cease to oscillate?
• Consistent QFT description of non-standard neutrino interactions
• Neutrino production coherence and oscillation experiments
• Combined analysis of neutrino decoherence at reactor experiments
• Dynamical Pion Collapse and the Coherence of Conventional Neutrino Beams
• Probing neutrino quantum decoherence at reactor experiments
• Revisiting the quantum decoherence scenario as an explanation for the LSND anomaly
• Neutrino oscillations in space within a solvable model
• Neutrino oscillations and the effect of the finite lifetime of the neutrino source
• Damping of neutrino oscillations, decoherence and the lengths of neutrino wave packets
• Gallium Anomaly: Critical View from the Global Picture of ${\nu }_e$ and ${\bar{\nu }}_e$ Disappearance
• Active to sterile neutrino oscillations: Coherence and MINOS results
• Revisiting the quantum field theory of neutrino oscillations in vacuum
• Impact of Wave Packet Separation in Low-Energy Sterile Neutrino Searches
• The Width of a Beta-decay-induced Antineutrino Wavepacket
• Particle decay in Gaussian wave-packet formalism revisited
• Damping signatures at JUNO, a medium-baseline reactor neutrino oscillation experiment
• Neutrino Decoherence and the Mass Hierarchy in the JUNO Experiment
• Microscopic and Macroscopic Effects in the Decoherence of Neutrino Oscillations
• How Broad is a Neutrino?

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