  A new economical model for neutrino masses is proposed in the context of
brane bulk scenarios for particle physics, where global B-L symmetry of the
standard model is broken spontaneously by a gauge singlet Higgs field in the
bulk. This leads to a bulk majoron whose KK excitations may make it visible if
neutrinoless double beta decay if the string scale is close to a TeV. It also
leads to neutron-anti-neutron oscillation process with transition times which
can be in the range accessible to proposed experiments.

High Energy Physics - Phenomenology