Phenomenological tests of the Two-Higgs-Doublet Model with MFV and flavour-blind phases

TL;DR

This paper explores a Two-Higgs-Doublet Model with Minimal Flavour Violation and flavour-blind CP phases, showing it can explain certain flavour anomalies without conflicting with electric dipole moment constraints.

Contribution

It demonstrates that allowing flavour-blind CP-violating phases within MFV in the 2HDM can address flavour anomalies while respecting experimental bounds.

Findings

Can accommodate large $B_s$ mixing phase

Softens $ ext{ε}_K$ and $S_{ ext{ψ}K_S}$ anomaly

No conflict with electric dipole moment bounds

Abstract

In the context of a Two-Higgs-Doublet Model in which Minimal Flavour Violation (MFV) is imposed, one can allow the presence of flavour-blind CP-violating phases without obtaining electric dipole moments that overcome the experimental bounds. This choice permits to accommodate the hinted large phase in the $B_s$ mixing and, at the same time, to soften the observed anomaly in the relation between $\epsilon_K$ and $S_{\psi K_S}$.