Spontaneous CP violation model with flavor symmetry in large extra dimensions

TL;DR

This paper presents a minimal supersymmetric model with spontaneous CP violation and flavor symmetry in large extra dimensions, addressing phenomenological issues, neutrino masses, and the strong CP problem.

Contribution

It introduces a novel SUSY framework with large extra dimensions that naturally explains CP violation, neutrino masses, and solves the strong CP problem with axions.

Findings

Realistic CP violation size achieved

Small neutrino masses realized

Strong CP problem addressed via axion scenario

Abstract

We construct the minimal SUSY model that causes spontaneous CP violation with an abelian flavor symmetry in the context of the large extra dimensions and show that various phenomenological problems can be solved by introducing only scales below the low fundamental scale. We also realize the realistic size of the CP violation and the small masses of the neutrinos. The strong CP problem can be solved by the axion scenario and the axion can be made invisible by introducing an additional large extra dimension.