Predictions with Lattice QCD

TL;DR

This paper summarizes recent lattice QCD calculations of key meson properties and form factors, highlighting their experimental confirmation across various collision experiments.

Contribution

It presents new lattice QCD results for meson decay constants, form factors, and meson masses, and discusses their experimental validation.

Findings

Lattice QCD calculated the $q^2$ dependence of form factors in $D\to Kl\nu$ decay.

Decay constants of $D^+$ and $D_s$ mesons were determined.

Mass of the $B_c$ meson was computed.

Abstract

In recent years, we used lattice QCD to calculate some quantities that were unknown or poorly known. They are the $q^2$ dependence of the form factor in semileptonic $D\to Kl\nu$ decay, the leptonic decay constants of the $D^+$ and $D_s$ mesons, and the mass of the $B_c$ meson. In this paper, we summarize these calculations, with emphasis on their (subsequent) confirmation by measurements in $e^+e^-$, $\gamma p$ and $\bar{p}p$ collisions.