Stellar Collapse Dynamics With Neutrino Flavor Changing Neutral Currents

Abstract

We perform one-zone simulations of the infall epoch of a pre-supernova stellar core in the presence of neutrino flavor changing scattering interactions. Our calculations give a self-consistent assessment of the relationship between flavor changing rates and the reduction in electron fraction and re-distribution of initial electron lepton number among the neutrino flavors. We discuss and include in our calculations sub-nuclear density medium corrections for flavor changing scattering coherence factors. We find that flavor changing couplings epsilon > 3x10^(-4) in either the electron neutrino - muon neutrino or electron neutrino - tau neutrino channels result in a dynamically significant reduction in core electron fraction relatively soon after neutrino trapping and well before the core reaches nuclear matter density.

28 pages, 4 figures, some new text added

References in corpus (17)

• Simulation of Coherent Non-Linear Neutrino Flavor Transformation in the Supernova Environment I: Correlated Neutrino Trajectories
• Present and Future Bounds on Non-Standard Neutrino Interactions
• Self-induced conversion in dense neutrino gases: Pendulum in flavour space
• A Finite Difference Representation of Neutrino Radiation Hydrodynamics in Spherically Symmetric General Relativistic Space-Time
• Collective Neutrino Flavor Transformation In Supernovae
• Neutrino-pasta scattering: the opacity of nonuniform neutron-rich matter
• The consequences of nuclear electron capture in core collapse supernovae
• Solar neutrinos as probes of neutrino-matter interactions
• Coherent Development of Neutrino Flavor in the Supernova Environment
• Neutrino Mixing and Nucleosynthesis in Core-Collapse Supernovae
• Flavor oscillations in the supernova hot bubble region: Nonlinear effects of neutrino background
• Atmospheric neutrinos as probes of neutrino-matter interactions
• Prospects for Detecting Supernova Neutrino Flavor Oscillations
• Supernova Neutrino-Nucleus Astrophysics
• Simultaneous Flavor Transformation of Neutrinos and Antineutrinos with Dominant Potentials from Neutrino-Neutrino Forward Scattering
• First Order Phase Transitions in Neutron star Matter: Droplets and Coherent Neutrino Scattering
• Flavor Changing Supersymmetry Interactions in a Supernova

Cited by in corpus (15)

• Probing non-standard neutrino interactions with supernova neutrinos
• Novel constraints on neutrino physics beyond the standard model from the CONUS experiment
• Recent probes of standard and non-standard neutrino physics with nuclei
• Nonstandard neutrino-neutrino refractive effects in dense neutrino gases
• Standard and non-standard neutrino-nucleus reactions cross sections and event rates to neutrino detection experiments
• Possible CP-Violation effects in core-collapse Supernovae
• New effects of non-standard self-interactions of neutrinos in a supernova
• Resolving CP Violation by Standard and Nonstandard Interactions and Parameter Degeneracy in Neutrino Oscillations
• Nuclear aspects of neutral current non-standard $\nu$-nucleus reactions and the role of the exotic ${\mu }^{-}\to e^{-}$ transitions experimental limits
• Interplay between collective effects and non-standard interactions of supernova neutrinos
• Neutrino propagation in binary neutron star mergers in presence of nonstandard interactions
• TeV-scale bileptons, see-saw type II and lepton flavor violation in core-collapse supernova
• Supernovae as laboratories for neutrino properties
• mu->e Gamma decay versus mu->eee bound and lepton flavor violating processes in supernova
• Lepton flavor violating New Physics and supernova explosion