Related Experiment Video
Updated: Jun 3, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Self-induced suppression of collective neutrino oscillations in a supernova
Huaiyu Duan1, Alexander Friedland
1Theoretical Division, Los Alamos National Laboratory, New Mexico 87545, USA.
Abstract:
We investigate collective flavor oscillations of supernova neutrinos at late stages of the explosion. We first show that the frequently used single-angle (averaged coupling) approximation predicts oscillations close to, or perhaps even inside, the neutrinosphere, potentially invalidating the basic neutrino transport paradigm. Fortunately, we also find that the single-angle approximation breaks down in this regime; in the full multiangle calculation, the oscillations start safely outside the transport region. The new suppression effect is traced to the interplay between the dispersion in the neutrino-neutrino interactions and the vacuum oscillation term.
Related Concept Videos
Fermi Level Dynamics
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
Atomic Nuclei: Nuclear Relaxation Processes
Nuclear Fusion
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
Atomic Emission Spectroscopy: Interference
Forced Oscillations
Atomic Nuclei: Larmor Precession Frequency

