Generalized Zee-Babu model with 750 GeV Diphoton Resonance

TL;DR

This paper introduces a generalized Zee-Babu model with a global B-L symmetry, classifying it by the hypercharge of exotic fermions, and explores its implications for the 750 GeV diphoton resonance and muon magnetic moment.

Contribution

It extends the Zee-Babu model by incorporating a global B-L symmetry and classifies models based on the hypercharge of exotic fermions, analyzing their phenomenological implications.

Findings

Models can explain the 750 GeV diphoton excess.

Certain configurations address the muon anomalous magnetic moment.

Classification based on the hypercharge N guides phenomenological viability.

Abstract

We propose a generalized Zee-Babu model with a global $U(1)$ B-L symmetry, in which we classify the model in terms of the number of the hypercharge $N/2$ of the isospin doublet exotic charged fermions. Corresponding to each of the number of $N$, we need to introduce some multiply charged bosons in order to make the exotic fields decay into the standard model fields. We also discuss the muon anomalous magnetic moment and the diphoton excess depending on $N$, and we show what kind of models are in favor of these phenomenologies.