# Semileptonic Decays of D and B Mesons

## TL;DR

This paper investigates semileptonic decays of heavy mesons, focusing on form factor uncertainties, quark mass dependence, and testing a current renormalization scheme with promising results.

## Contribution

It provides new insights into form factor uncertainties, quark mass effects, and validates a non-perturbative renormalization scheme for vector currents in meson decays.

## Key findings

- Form factor uncertainties are characterized.
- Heavy quark mass dependence is analyzed.
- The LMK renormalization scheme shows remarkable agreement.

## Abstract

We report results of our ongoing investigation concerning semileptonic decays of heavy pseudoscalar mesons into pseudoscalar and vector mesons. Particular attention is paid to uncertainties in the $q^2$ and the heavy quark mass dependence of formfactors. Moreover we present a non-perturbative test to the LMK current renormalization scheme for vector current transition matrix elements and find remarkable agreement.

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Source: https://tomesphere.com/paper/hep-lat/9510007