Self-induced spectral splits in supernova neutrino fluxes

By G. Raffelt, A. Smirnov. 2007

168 citations recorded by the source corpus.

In the dense-neutrino region above the neutrino sphere of a supernova (r < or approx. 400 km), neutrino-neutrino refraction causes collective flavor transformations. They can lead to 'spectral splits' where an energy E{sub split} splits the transformed spectrum sharply into parts of almost pure but different flavors. Unless there is an ordinary MSW resonance in the dense-neutrino region, E{sub split} is determined by flavor-lepton number conservation alone. Spectral splits are created by an adiabatic transition between regions of large and small neutrino density. We solve the equations of motion in the adiabatic limit explicitly and provide analytic expressions for a generic example.

View Paper: https://www.semanticscholar.org/paper/71d5e3902198a837a5f39ab5534996b883269078

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Citations in the corpus

Large underground, liquid based detectors for astro-particle physics in Europe: scientific case and prospects (2007, background): “However, from recent numerical simulations [84] and analytical studies [86], it results that the effects of these non-linear effects would produce a spectral swap νeν̄e ← νxν̄x at r 400 km, for an inverted neutrino mass hierarchy.”
The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe (2013, unknown): “, [200,201,202,203,204,205,206,207,208].”
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects (2015, background): “, [134, 135, 136, 137, 138, 139, 140, 141, 142, 143] the effects of which are not yet fully understood.”
Collective neutrino flavor transitions in supernovae and the role of trajectory averaging (2007, background): “Then, as recently emphasized in [43, 44], the end of collective effects is marked by a spectral pair-conversion which is complete for ν’s, while for ν’s it occurs only above a characteristic energy set by lepton number conservation.”
Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF (2015, background): “, [134, 135, 136, 137, 138, 139, 140, 141, 142, 143] the effects of which are not yet fully understood.”
Collective neutrino flavor conversion: Recent developments (2016, background): “Such models lead to sharp spectral features (“spectral splits”) caused by flavor swaps between different parts of the spectrum [15–18].”