Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-03-29
Phys.Rev.D75:125005,2007
Astronomy and Astrophysics
Astrophysics
18 pages, 6 figures, retex4 format
Scientific paper
10.1103/PhysRevD.75.125005
We study the flavor evolution of a dense gas initially consisting of pure mono-energetic $\nu_e$ and $\bar\nu_e$. Using adiabatic invariants and the special symmetry in such a system we are able to calculate the flavor evolution of the neutrino gas for the cases with slowly decreasing neutrino number densities. These calculations give new insights into the results of recent large-scale numerical simulations of neutrino flavor transformation in supernovae. For example, our calculations reveal the existence of what we term the ``collective precession mode''. Our analyses suggest that neutrinos which travel on intersecting trajectories subject to destructive quantum interference nevertheless can be in this mode. This mode can result in sharp transitions in the final energy-dependent neutrino survival probabilities across all trajectories, a feature seen in the numerical simulations. Moreover, this transition is qualitatively different for the normal and inverted neutrino mass hierarchies. Exploiting this difference, the neutrino signals from a future galactic supernova can potentially be used to determine the actual neutrino mass hierarchy.
Carlson Jack
Duan Huaiyu
Fuller George M.
Qian Yong-Zhong
No associations
LandOfFree
Analysis of Collective Neutrino Flavor Transformation in Supernovae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analysis of Collective Neutrino Flavor Transformation in Supernovae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of Collective Neutrino Flavor Transformation in Supernovae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-649978