# Leptonic Decays of Heavy-Light Systems

## TL;DR

This paper reviews recent lattice calculations of decay constants for heavy-light mesons, discussing methods and systematic effects involved in these computations.

## Contribution

It provides a comprehensive overview of the current lattice techniques and systematic uncertainties in calculating heavy-light meson decay constants.

## Key findings

- Updated values of $f_B$ and $f_D$ from lattice calculations
- Analysis of systematic effects in decay constant computations
- Comparison of different lattice methods

## Abstract

Results from recent lattice calculations of the decay constants $f_B$ and $f_D$ are reviewed. A discussion of the methods currently used is presented, together with an outline of the various systematic effects involved.