  Solar neutrinos interact with double beta decay detectors (DBD) and hence
will contribute to backgrounds (BG) for DBD experiments. Background
contributions due to solar neutrinos are evaluated for their interactions with
atomic electrons and nuclei in liquid scintillation detectors used for DBD
experiments. They are shown to be serious backgrounds for high sensitivity DBD
experiments to search for the Majorana neutrino masses in the inverted and
normal hierarchy regions.
