# Flipped Quartification: Product Group Unification with Leptoquarks

## TL;DR

This paper introduces a new version of the quartification model that includes leptoquarks to explain neutrino masses and lepton-flavor non-universality.

## Contribution

The flipped quartification model introduces leptoquarks for new explanations of neutrino mass generation and lepton-flavor non-universality.

## Key findings

- The flipped quartification model includes two standard families and one flipped family.
- Leptoquarks are featured in the model, enabling new mechanisms for neutrino mass generation.
- The model provides a framework for addressing lepton-flavor non-universality.

## Abstract

The quartification model is an SU(3)4 extension with a bi-fundamental fermion sector of the well-known SU(3)3 bi-fundamentalfication model. An alternative “flipped” version of the quartification model is obtained by rearrangement of the particle assignments. The flipped model has two standard (bi-fundamentalfication) families and one flipped quartification family. In contrast to traditional product group unification models, flipped quartification stands out by featuring leptoquarks and thus allows for new mechanisms to explain the generation of neutrino masses and possible hints of lepton-flavor non-universality.