2011/06/30 by Daniel Boyanovsky, D. Boyanovsky · 21 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Baseline (sea) #Coherence (philosophical gambling strategy) #Dark Matter and Cosmic Phenomena #Electron neutrino #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics #Physics #Political science #Quantum #Quantum entanglement #Quantum mechanics #hep-ex #hep-ph #quant-ph
paper · pdf · doi:10.1103/physrevd.84.065001
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 84(6) (American Physical Society) · 29 pages, 6 figures, revised MiniBooNE estimates, matches published version
arxiv created 2011/09/01 · openalex publication_date 2011/09/01 · arxiv updated 2011/09/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
For neutrino oscillations to take place the entangled quantum state of a neutrino and a charged lepton produced via charged current interactions must be disentangled. Implementing a nonperturbative Wigner-Weisskopf method we obtain the correct entangled quantum state of neutrinos and charged leptons from the (two-body) decay of a parent particle. The source lifetime and disentanglement length scale lead to a suppression of the oscillation probabilities in short-baseline experiments. The suppression is determined by \ensuremathπLs/Losc where Ls is the smallest of the decay length of the parent particle or the disentanglement length scale. For Ls\ensuremath≥Losc coherence and oscillations are suppressed. These effects are more prominent in short base line experiments and at low neutrino energy. We obtain the corrections to the appearance and disappearance probabilities modified by both the lifetime of the source and the disentanglement scale and discuss their implications for accelerator and reactor experiments. These effects imply that fits to the experimental data based on the usual quantum mechanical formulation underestimate sin2(2\ensuremathθ) and \ensuremathδm2, and are more dramatic for \ensuremathδm2\ensuremath≃eV2, the mass range for new generations of sterile neutrinos that could explain the short-baseline anomalies and long disentanglement length scales.