Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-07-03
Z.Phys.C73:633-640,1997
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, plain LaTeX, 6 figures, revised version to be published in Z. Phys. C
Scientific paper
10.1007/s002880050354
The distortions in the thermal energy spectra for neutrinos produced in a supernova when a resonant oscillation, MSW effect, occurs are determined. In order to show this effect for some relevant and representative examples of unified gauge models, we have chosen $SO(10)$, and $SU(5)_{SUSY}$, $SO(10)_{SUSY}$ with a particular scheme for fermion masses (DHR model). The analysis has been performed for two choices of neutrinos parameters, predicted by the above models, and capable to explain the solar neutrino problem. In both cases one observes a strong distortion in the electron neutrino energy spectrum. This effect, computed for a wide range of $SO(10)_{SUSY}$ models has produced the same results of the previous supersymmetric ones.
Buccella Franco
Esposito Salvatore
Gualdi C.
Miele Gennaro
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