Revisiting quantum decoherence for neutrino oscillations in constant matter density

Abstract

We re-examine the matter neutrino oscillation probabilities considering the decoherence phenomenon as a sub-leading effect. In this paper we point out the relevance of having the correct interpretation of the decoherence matrix in the different quantum bases, within the framework of neutrino oscillation probabilities in matter. Based on this treatment we develop an analytical formula for matter neutrino oscillation probabilities for three generations, with a range of application up to the decoherence parameter $\Gamma \sim 10^{-23}$ GeV. We observe that, due to decoherence, the amplitudes of the neutrino/antineutrino oscillation probabilities increase in an energy independent way. We also find that decoherence can reduce the absolute value of the CP asymmetry, relative to its value at the pure oscillation case. As a side effect we have found a degeneracy between the decoherence parameter $\Gamma$ and the CP violation phase $\delta$.

12 pages, 5 figures. Accepted for publication in PRD

References in corpus (17)

• Observation of electron-antineutrino disappearance at Daya Bay
• Status of non-standard neutrino interactions
• Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF
• Status of Oscillation plus Decay of Atmospheric and Long-Baseline Neutrinos
• Neutrino Decays over Cosmological Distances and the Implications for Neutrino Telescopes
• Testing decay of astrophysical neutrinos with incomplete information
• Probing non-standard decoherence effects with solar and KamLAND neutrinos
• Constraints on neutrino decay lifetime using long-baseline charged and neutral current data
• Testing neutrino flavor mixing plus decay with neutrino telescopes
• Reconciling results of LSND, MiniBooNE and other experiments with soft decoherence
• Neutrino flux ratios at neutrino telescopes: The role of uncertainties of neutrino mixing parameters and applications to neutrino decay
• Parameter Limits for Neutrino Oscillation with Decoherence in KamLAND
• Visible neutrino decay in the light of appearance and disappearance long baseline experiments
• Nonmaximal ${\theta }_{23}$ mixing at NOvA from neutrino decoherence
• Non-Unitary Neutrino Propagation From Neutrino Decay
• Dissipative Effect in Long Baseline Neutrino Experiments
• Constraining the Violation of Equivalence Principle with IceCube Atmospheric Neutrino Data

Cited by in corpus (23)

• Decoherence in neutrino oscillations, neutrino nature and CPT violation
• Decoherence in neutrino propagation through matter, and bounds from IceCube/DeepCore
• Quantum Decoherence Effects in Neutrino Oscillations at DUNE
• Neutrino decoherence from quantum gravitational stochastic perturbations
• Revealing neutrino nature and $CPT$ violation with decoherence effects
• Neutrino oscillation bounds on quantum decoherence
• Probing CPT breaking induced by quantum decoherence at DUNE
• Neutrino Oscillations in a Quantum Processor
• Testing quantum decoherence at DUNE
• Solar Neutrino Limits on Decoherence
• Neutrino signals of lightcone fluctuations resulting from fluctuating space-time
• Neutrino decoherence in a fermion and scalar background
• 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
• Effects of the Violation of the Equivalence Principle at DUNE
• Decoherence in Neutrino Oscillation at the ESSnuSB Experiment
• Study of quantum decoherence at Protvino to ORCA experiment
• Taming the pinch singularities in the two-loop neutrino self-energy in a medium
• Neutrino Decoherence in Simple Open Quantum Systems
• Probing new physics scenarios using high energy events at NOvA far detector
• Impact of different neutrino decoherence formalisms at the future long-baseline Experiments