REVIEW 4 cited by
A few moments to diagnose fast flavor conversions of supernova neutrinos
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
Neutrinos emitted from a supernova may undergo flavor conversions almost immediately above the core, with possible consequences for supernova dynamics and nucleosynthesis. However, the precise conditions for such fast conversions can be difficult to compute and require knowledge of the full angular distribution of the flavor-dependent neutrino fluxes, that is not available in typical supernova simulations. In this paper, we show that the overall flavor evolution is qualitatively similar to the growth of a so-called `zero mode', determined by the background matter and neutrino densities, which can be reliably predicted using only the second angular moments of the electron lepton number distribution, i.e., the difference in the angular distributions of $\nu_e$ and $\bar{\nu}_e$ fluxes. We propose that this zero mode, which neither requires computing the full Green's function nor a detailed knowledge of the angular distributions, may be useful for a preliminary diagnosis of possible fast flavor conversions in supernova simulations with modestly resolved angular distributions
Forward citations
Cited by 4 Pith papers
-
Electron-neutrino lepton number crossings: Variations with the supernova core physics
In a suite of 12 supernova models, electron-neutrino lepton number crossings appear at larger radii when proto-neutron star convection is included and at smaller radii when muon production is included.
-
Neutrino flavor instabilities in a binary neutron star merger remnant: Roles of a long-lived hypermassive neutron star
In a long-lived hypermassive neutron star merger remnant, fast flavor instabilities occur transiently and locally while collisional flavor instabilities persist widely in the disk for about one second.
-
Resolution requirements for numerical modeling of neutrino quantum kinetics
A resolution study of neutrino quantum kinetics shows that under-resolving spatial modes suppresses flavor instability growth and leads to wrong asymptotic flavor conversion states.
-
Quantum break in models of axion dark matter
A modified mean-field analysis predicts that axion dark matter can undergo a quantum break into photon pairs, with multi-mode synchronization counteracting red-shift detuning.
Discussion (0). Continue with ORCID to comment.