Gauge $B-L$ Model of Radiative Neutrino Mass with Multipartite Dark Matter

TL;DR

This paper introduces a $B-L$ gauge extension of the standard model that generates neutrino masses radiatively and accommodates multipartite dark matter, also potentially explaining the 750 GeV diphoton excess at the LHC.

Contribution

It presents a novel $B-L$ gauge model with exotic neutral fermions and scalars for radiative neutrino mass generation and multipartite dark matter, also addressing collider anomalies.

Findings

Model successfully generates neutrino masses radiatively.

Includes multipartite dark matter candidates.

Provides a possible explanation for the 750 GeV diphoton excess.

Abstract

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 $U(1)_{B-L}$, this becomes a model of radiative seesaw neutrino mass with possible multipartite dark matter. If leptoquark fermions are added, necessarily also transforming under $B-L$, the diphoton excess at 750 GeV, recently observed at the Large Hadron Collider, may also be explained.