Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-07-20
Phys.Lett. B441 (1998) 305-312
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pags. latex. 3 figures, 3 ps files. epsfig.sty neccesary. Version with minor typo errors corrected
Scientific paper
10.1016/S0370-2693(98)01166-6
We consider the effect of a strongly chaotic magnetic field at the narrow bottom of the convective zone of the Sun together with resonant matter oscillations on the production of electron Majorana antineutrinos. Even for moderate levels of noise, we show that it is possible to obtain a small but significant probability for $\nu_e\to \bar{\nu}_e$ conversions (1-3%) at the energy range 2-10 MeV for large regions of the mixing parameter space while still satisfying present (Super)-Kamiokande antineutrino bounds and observed total rates. In the other hand it would be possible to obtain information about the solar magnetic internal field if antineutrino bounds reach the 1% level and a particle physics solution to the SNP is assumed. The mechanism presented here has the advantage of being independent of the largely unknown magnetic profile of the Sun and the intrinsic neutrino magnetic moment.
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