Elastic neutrino-atom scattering as a probe of neutrino millicharge and magnetic moment
G. V. Donchenko, K. A. Kouzakov, A. I. Studenikin
Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
Abstract
Neutrino scattering on a target at low-energy transfer is one
of the basic tools for searching for neutrino electromagnetic properties.
We consider the effects of the neutrino millicharge and magnetic moment
on the atomic recoil spectrum in elastic neutrino-atom scattering. The
results of our calculations of differential cross sections for elastic
collisions of tritium neutrinos with the H, 2H, 3He, and 4He
atomic targets show that the corresponding experiments can achieve
sensitivity to the indicated neutrino electromagnetic characteristics by
orders of magnitude better than the available measurements of elastic
neutrino-electron and neutrino-nucleus collisions.