Neutrino flavor instabilities in a time-dependent supernova model
arXiv:1509.01538 · doi:10.1016/j.physletb.2015.10.019
Abstract
A dense neutrino medium such as that inside a core-collapse supernova can experience collective flavor conversion or oscillations because of the neutral-current weak interaction among the neutrinos. This phenomenon has been studied in a restricted, stationary supernova model which possesses the (spatial) spherical symmetry about the center of the supernova and the (directional) axial symmetry around the radial direction. Recently it has been shown that these spatial and directional symmetries can be broken spontaneously by collective neutrino oscillations. In this paper we analyze the neutrino flavor instabilities in a time-dependent supernova model. Our results show that collective neutrino oscillations start at approximately the same radius in both the stationary and time-dependent supernova models unless there exist very rapid variations in local physical conditions on timescales of a few microseconds or shorter. Our results also suggest that collective neutrino oscillations can vary rapidly with time in the regimes where they do occur which need to be studied in time-dependent supernova models.
5 pages, 2 figures, version to appear in PLB
References in corpus (17)
- Simulation of Coherent Non-Linear Neutrino Flavor Transformation in the Supernova Environment I: Correlated Neutrino Trajectories
- Collective neutrino flavor transitions in supernovae and the role of trajectory averaging
- Multiple Spectral Splits of Supernova Neutrinos
- Coherent Development of Neutrino Flavor in the Supernova Environment
- Neutrino cloud instabilities just above the neutrino sphere of a supernova
- Role of dense matter in collective supernova neutrino transformations
- Neutrino scattering and flavor transformation in supernovae
- Self-induced suppression of collective neutrino oscillations in a supernova
- Flavor Evolution of the Neutronization Neutrino Burst from an O-Ne-Mg Core-Collapse Supernova
- Flavor instabilities in the neutrino line model
- Identifying neutrino mass hierarchy at extremely small theta(13) through Earth matter effects in a supernova signal
- Self-induced flavor instabilities of a dense neutrino stream in a two-dimensional model
- Collective neutrino oscillations in non-spherical geometry
- Damping the neutrino flavor pendulum by breaking homogeneity
- Liouville equations for neutrino distribution matrices
- Flavor instabilities in the multi-angle neutrino line model
- Matter-Neutrino Resonance Above Merging Compact Objects
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- Fast Pairwise Conversion of Supernova Neutrinos: A Dispersion-Relation Approach
- Collective neutrino flavor conversion: Recent developments
- Self-induced neutrino flavor conversion without flavor mixing
- What can be learned from a future supernova neutrino detection?
- Neutrino oscillations in supernovae: angular moments and fast instabilities
- Fast neutrino flavor conversions near the supernova core with realistic flavor-dependent angular distributions
- On the occurrence of fast neutrino flavor conversions in multidimensional supernova models
- Fast flavor conversions of supernova neutrinos: Classifying instabilities via dispersion relations
- Fast neutrino flavor instability and neutrino flavor lepton number crossings
- A new possibility of the fast neutrino-flavor conversion in the pre-shock region of core-collapse supernova
- Fast Neutrino Flavor Conversion Modes in Multidimensional Core-collapse Supernova Models: the Role of the Asymmetric Neutrino Distributions
- Fast flavor oscillations in dense neutrino media with collisions
- Collective fast neutrino flavor conversions in a 1D box: Initial condition and long-term evolution
- Fast neutrino flavor conversion: roles of dense matter and spectrum crossing
- The dispersion relation of the fast neutrino oscillation wave
- Temporal Instability Enables Neutrino Flavor Conversions Deep Inside Supernovae
- On Fast Neutrino Flavor Conversion Modes in the Nonlinear Regime
- Neutrino Flavor Conversions in High-Density Astrophysical and Cosmological Environments
- Evolution of collisional neutrino flavor instabilities in spherically symmetric supernova models
- Normal-mode Analysis for Collective Neutrino Oscillations
- Fast Neutrino Flavor Conversion as Oscillations in a Quartic Potential
- Three flavor neutrino conversions in supernovae: Slow Fast instabilities
- Searching for Fast Neutrino Flavor Conversion Modes in Core-collapse Supernova Simulations
- On the Occurrence of Crossings Between the Angular Distributions of Electron Neutrinos and Antineutrinos in the Supernova Core
- Fast Neutrino Flavor Conversion: Collective Motion vs. Decoherence
- Neutrinos and nucleosynthesis of elements
- Neutrino Flavor Evolution in Neutron Star Mergers
- Connecting small-scale to large-scale structures of fast neutrino-flavor conversion
- General-Relativistic Quantum-Kinetics Neutrino Transport
- Linear stability analysis of collective neutrino oscillations without spurious modes
- Matter-neutrino resonance in a multi-angle neutrino bulb model
- Nonlinear flavor development of a two-dimensional neutrino gas
- Self-induced temporal instability from a neutrino antenna
- Neutrino self-interaction and MSW effects on the supernova neutrino-process
- Probing nonlinear electrodynamics in slowly rotating spacetimes through neutrino astrophysics
- Spectral swaps in a two-dimensional neutrino ring model
- Prospects for Neutrino Spin Coherence in Supernovae
- Fast Flavor Oscillations of Astrophysical Neutrinos with Crossings
- Theory of neutrino slow flavor evolution. Part I. Homogeneous medium
- Turbulence Fingerprint on Collective Oscillations of Supernova Neutrinos
- An optimization-based approach to calculating neutrino flavor evolution
- Collective Oscillations of Majorana Neutrinos in Strong Magnetic Fields and Self-induced Flavor Equilibrium
- Collective neutrino oscillations and detectabilities in failed supernovae
- The Liouville equation for flavour evolution of neutrinos and neutrino wave packets
- Inference of neutrino flavor evolution through data assimilation and neural differential equations
- Inference offers a metric to constrain dynamical models of neutrino flavor transformation
- Flavor Equilibration of Supernova Neutrinos: Exploring the Dynamics of Slow Modes
- Neutrino quantum kinetics in two spatial dimensions
- Supernova flavour conversions in DUNE: the slow, the fast and the standard
- Neutrino quantum kinetics in three flavors
- Simulating collective neutrinos oscillations on the Intel Many Integrated Core (MIC) architecture