Supernova neutrino halo and the suppression of self-induced flavor conversion
arXiv:1204.0971 · doi:10.1103/PhysRevD.85.113007
Abstract
Neutrinos streaming from a supernova (SN) core occasionally scatter in the envelope, producing a small "neutrino halo" with a much broader angle distribution than the primary flux originating directly from the core. Cherry et al. (2012) have recently pointed out that, during the accretion phase, the halo actually dominates neutrino-neutrino refraction at distances exceeding some 100 km. However, the multiangle matter effect (which increases if the angle distribution is broader) still appears to suppress self-induced flavor conversion during the accretion phase.
related to our previous PRL 108 (2012) 061101 [arXiv:1109.3601]; v2 with appendix on analytic treatment of halo, matches the published version
References in corpus (4)
- Simulation of Coherent Non-Linear Neutrino Flavor Transformation in the Supernova Environment I: Correlated Neutrino Trajectories
- Role of dense matter in collective supernova neutrino transformations
- Analysis of Collective Neutrino Flavor Transformation in Supernovae
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Cited by in corpus (12)
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- Effects of neutrino oscillations on nucleosynthesis and neutrino signals for an 18 M supernova model
- Linear Analysis of Fast-Pairwise Collective Neutrino Oscillations in Core-Collapse Supernovae based on the Results of Boltzmann Simulations
- A change of direction in pairwise neutrino conversion physics: The effect of collisions
- Neutrino Flavor Conversions in High-Density Astrophysical and Cosmological Environments
- Collisional instabilities of neutrinos and their interplay with fast flavor conversion in compact objects
- Damping the neutrino flavor pendulum by breaking homogeneity
- Spurious instabilities in multiangle simulations of collective flavor conversion
- Prospects for Neutrino Spin Coherence in Supernovae
- Geometric phases in neutrino oscillations with nonlinear refraction