Decoherence, matter effect, neutrino hierarchy signature in long baseline experiments

Abstract

Environmental decoherence of oscillating neutrinos of strength $\Gamma =(2.3\pm 1.1)\times 10^{-23}$ GeV can explain how maximal ${\theta }_{23}$ mixing observed at 295 km by T2K appears to be non-maximal at longer baselines. As shown recently by R. Oliveira, the MSW matter effect for neutrinos is altered by decoherence: In normal (inverted) mass hierarchy, a resonant enhancement of ${\nu }_{\mu }({\bar{\nu }}_{\mu })\to {\nu }_e({\bar{\nu }}_e)$ occurs for $6<E_{\nu }<20$ GeV. Thus decoherence at the rated strength may be detectable as an excess of charged-current ${\nu }_e$ events in the full ${\nu }_{\mu }$ exposures of MINOS+ and OPERA.

arXiv comment8 pages, 2 figures Accepted for publication in PRD

References in corpus (20)

• Updated fit to three neutrino mixing: exploring the accelerator-reactor complementarity
• Golden measurements at a neutrino factory
• Analytic Approximations for Three Neutrino Oscillation Parameters and Probabilities in Matter
• Probing possible decoherence effects in atmospheric neutrino oscillations
• A review of mu-tau flavor symmetry in neutrino physics
• First combined analysis of neutrino and antineutrino oscillations at T2K
• Massless neutrino oscillations
• Probing non-standard decoherence effects with solar and KamLAND neutrinos
• Measurement of the neutrino mixing angle ${\theta }_{23}$ in NOvA
• Reconciling results of LSND, MiniBooNE and other experiments with soft decoherence
• A Microscopic Liouville Arrow of Time
• Quantum decoherence and neutrino data
• Parameter Limits for Neutrino Oscillation with Decoherence in KamLAND
• Matter effects in long baseline experiments, the flavor content of the heaviest (or lightest) neutrino and the sign of Delta m^2
• Nonmaximal ${\theta }_{23}$ mixing at NOvA from neutrino decoherence
• Dissipative Effect in Long Baseline Neutrino Experiments
• Revisiting the quantum decoherence scenario as an explanation for the LSND anomaly
• Quantum Dissipation and CP Violation in MINOS
• Wave-packet treatment of neutrino oscillations and its implications on determining the neutrino mass hierarchy
• A study on quantum decoherence phenomena with three generations of neutrinos

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• Understanding gravitationally induced decoherence parameters in neutrino oscillations using a microscopic quantum mechanical model
• A gravitationally induced decoherence model using Ashtekar variables
• Neutrino decoherence in an electron and nucleon background
• Microscopic and Macroscopic Effects in the Decoherence of Neutrino Oscillations
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