# Rare $\Lambda_{b}\to \Lambda\ell^{+}\ell^{-}$ decay in the two-Higgs doublet model of type-III

## TL;DR

This paper investigates rare Lambda_b decays within the two-Higgs-doublet model of type III, predicting significant deviations from the Standard Model in various decay observables, which could help test new physics.

## Contribution

It provides a detailed analysis of Lambda_b decay observables in the two-Higgs-doublet model of type III, highlighting potential experimental signatures of new physics beyond the Standard Model.

## Key findings

- Enhanced branching ratios and differential decay rates
- Significant changes in leptons forward-backward asymmetry
- Altered Lambda baryon polarization patterns

## Abstract

The rare exclusive dileptonic $\Lambda_{b}\to \Lambda\ell^{+}\ell^{-}$ $(\ell =\mu, \tau)$ decays are investigated in the general two-Higgs-doublet model of type III. A significant enhancement to the branching ratios, differential branching ratios, leptons forward-backward asymmetry, and the $\Lambda$ baryon polarizations over the standard model is obtained. Measurements of these quantities will be useful for establishing the two-Higgs doublet model.