Probing Neutrino Magnetic Moments at Underground Detectors with Artificial Neutrino Sources

Abstract

Neutrino-electron scattering can be used to probe neutrino electromagnetic properties at low-threshold underground detectors with good angular and recoil electron energy resolution. We propose to do this using a number of artificial neutrino and anti-neutrino sources such as ${}^{51}C{r}_{24}$ and ${}^{90}Sr-Y$. The neutrino flux is known to within one percent, in contrast to the reactor case and one can reach lower neutrino energies. For the ${}^{90}Sr-Y$ source we estimate that the signal expected for a neutrino magnetic moment of ${\mu }_{\nu }=6\times 10^{-11}{\mu }_B$ will be comparable to that expected in the SM and corresponds to a 30% enhancement in the total number of expected events.

Latex, 11 pages, 9 figures added