Test of non-standard neutrino properties with the BOREXINO source experiments

Abstract.

We calculate the event rates induced by high-intensity radioactive sources of $\nu_e$ ($^{51}$Cr) and of $\bar{\nu}_e$ ($^{90}$Sr), to be located near the BOREXINO detector. Calculations are performed both in the standard case and assuming non-standard properties of neutrinos, including flavor oscillations, neutrino electromagnetic interactions, and deviations from the standard vector and axial couplings in the $\nu_e$-e interaction. It is shown that, in some cases, the current limits on non-standard neutrino properties can be significantly improved.