Weak Charm Decays with Lattice QCD

TL;DR

This paper reviews lattice QCD calculations of decay constants and semileptonic decay form factors for D and D_s mesons, focusing on simulations with 2+1 sea quarks, to improve understanding of charm decays.

Contribution

It provides an updated review of lattice QCD results for charm meson decay constants and form factors with 2+1 sea quarks, highlighting recent progress and current status.

Findings

Decay constants and form factors are computed with increasing precision.

Results are consistent with experimental measurements within uncertainties.

Lattice QCD continues to improve in simulating charm quark physics.

Abstract

In this paper I review the status of lattice QCD calculations of $D$ and $D_s$ meson decay constants and of $D$ meson semileptonic decay form factors. I restrict my discussion to results obtained from simulations with $n_f = 2+1$ sea quarks.