Gauge B- L model of radiative neutrino mass with multipartite dark matter.

We propose an extension of the Standard Model of quarks and leptons to include gauge B- L symmetry with an exotic array of neutral fermion singlets for anomaly cancellation. With the addition of suitable scalars also transforming under U(1), this becomes a model of radiative seesaw neutrino mass with possible multipartite dark matter. If leptoquark fermions are added, necessarily also transforming under U(1), the diphoton excess at 750 GeV, recently observed at the Large Hadron Collider, may also be explained. [ABSTRACT FROM AUTHOR]