Dark Matter, Leptogenesis, and Neutrino Mass in the Minimal Extension of the SM with $U(1)_{B-L}\otimes Z_{2}$

TL;DR

This paper proposes a minimal extension of the Standard Model with a $U(1)_{B-L} imes Z_2$ symmetry that explains neutrino masses, dark matter, and baryon asymmetry, with testable predictions at future experiments.

Contribution

It introduces a simple $U(1)_{B-L} imes Z_2$ extension that simultaneously addresses neutrino mass, dark matter, and leptogenesis, linking new physics at around 1000 TeV.

Findings

Model naturally explains the WIMP miracle

Achieves leptogenesis elegantly

Predicts testable signals in upcoming experiments

Abstract

I suggest a minimal extension of the SM with $U(1)_{B-L}\otimes Z_{2}$. It can simultaneously accommodate the tiny neutrino mass, cold dark mater and baryon asymmetry besides the SM. All of the new physics arise from the $U(1)_{B-L}$ violation at the energy scale about 1000 TeV. The model can naturally explain the "WIMP Miracle" and elegantly achieve the leptogenesis, in addition, some predictions of the model are possible and promising to be tested in near future experiments.