Predictions from Lattice QCD

TL;DR

This paper reports recent lattice QCD calculations of key quantities like form factors, decay constants, and meson masses, which have been confirmed by experimental results, advancing understanding in particle physics.

Contribution

It presents new lattice QCD calculations of three important quantities, providing data that was previously unknown or poorly known, and confirms these with experimental validation.

Findings

Calculated $q^2$ dependence of form factor in $D o Kl u$ decay

Determined decay constant of the $D$ meson

Estimated mass of the $B_c$ meson

Abstract

In the past year, we calculated with lattice QCD three 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 decay constant of the $D$ meson, and the mass of the $B_c$ meson. In this talk, we summarize these calculations, with emphasis on their (subsequent) confirmation by experiments.