$B_{s,d}^0 \to \ell^+\ell^-$ Decays in Two-Higgs Doublet Models

TL;DR

This paper analyzes rare B meson decays into leptons within a two-Higgs doublet model, providing a detailed one-loop calculation of Wilson coefficients and examining experimental constraints on the model parameters.

Contribution

It offers a comprehensive one-loop calculation of short-distance coefficients in the aligned two-Higgs doublet model for rare B decays and assesses experimental constraints.

Findings

Calculated Wilson coefficients at one-loop level.

Identified parameter constraints from current data.

Provided technical details for future phenomenological studies.

Abstract

We study the rare leptonic decays $B_{s,d}^0 \to \ell^+\ell^-$ within the general framework of the aligned two-Higgs doublet model. A complete one-loop calculation of the relevant short-distance Wilson coefficients is presented, with a detailed technical summary of the results. The phenomenological constraints imposed by present data on the model parameters are also investigated.