Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-11-10
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 4 figures, to appear in the Proceedings of International Symposium on Lepton and Baryon Number Violation, Trento, It
Scientific paper
It is shown that true Nambu-Goldstone (NG) bosons develop coherent fields whenever the associated charges of the matter particles are not conserved in a macroscopic scale. The sources of the NG fields are the time rates of quantum number violation. If the lepton numbers are spontaneously broken at a scale below 1 TeV, the neutrino oscillation processes generate classic NG fields that are strong enough in Supernovae to modify the neutrino flavor dynamics. The oscillation patterns may change in the periods of largest $\nu $ fluxes. Two examples are given: 1. the back reaction of a NG field improves the adiabaticity of the $\nu_{e}$ resonant conversion; 2. ${\bar{\nu}_{e}} \leftrightarrow {\bar{\nu}_{\mu}}$ oscillations may occur even if $\nu_{e}$ is the lightest of the neutrinos.
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