Neutrino Magnetic Moment and Solar Neutrino Experiments

Abstract

We have studied the effect of a non-vanishing neutrino magnetic moment \ (${\mu }_{\nu }$) on the ${\nu }_{\mathrm{x}}$ ({x=$e,\mu ,\tau$}) elastic scattering off electrons for the Super-Kamiokande detector. The bounds on the ${\mu }_{\nu }$ we have obtained are comparable to that extracted from laboratory experiments. Furthemore, we outline the potential of the Borexino experiment which may be sensitive to neutrino magnetic moments $\text{lsim}10^{-10}{\mu }_B$. In our analysis we have considered both cases of Majorana and Dirac neutrinos.

Comments: latex file, 4 pages, including 3 postscript figures. Talk given by A. Mourao at the Neutrino 98 Conference (Japan). To appear in the Proceedings