Couplings of quarks in the Partially Aligned 2HDM with a four-zero texture Yukawa matrix

TL;DR

This paper introduces the Partial Aligned 2HDM (PA-2HDM), a framework that simplifies the description of various 2HDM versions, including flavor symmetry models, and provides a method to diagonalize four-zero texture Yukawa matrices with applications to phenomenology.

Contribution

It presents the PA-2HDM scheme for a unified description of 2HDM variants and a new method for diagonalizing four-zero texture Yukawa matrices in 2HDM-III.

Findings

The PA-2HDM effectively describes different 2HDM versions.

A new diagonalization method for four-zero texture Yukawa matrices.

Phenomenological applications demonstrate the model's predictive capabilities.

Abstract

The Two Higgs Doublets Model (2HDM) has provided a very useful way to describe a minimal extension of the scalar sector of the Standard Model. In this work, it is shown a scheme that we call Partial Aligned Two Higgs Doublet Model (PA-2HDM) which allows a description of the distinct versions of the 2HDM in a simple way, including those with flavor symmetries. In addition, it is shown a method to diagonalize Yukawa matrices of four-zero texture coming from the 2HDM-III. We provide some phenomenological applications in order to show the model's predictive power.