Charmed hadron physics in quenched anisotropic lattice QCD

TL;DR

This paper explores the use of anisotropic lattice QCD with improved quark actions to study charmed hadrons, aiming to unify treatment of heavy and light quarks and reduce systematic errors.

Contribution

It demonstrates the feasibility of anisotropic lattice QCD for charmed hadron calculations, showing consistency with isotropic lattice results in quenched approximation.

Findings

Charmed meson spectrum matches advanced isotropic lattice results

Decay constants are consistent with previous studies

Anisotropic lattice is promising for heavy-light quark studies

Abstract

We investigate the anisotropic lattice with $O(a)$ improved quark action as a candidate of framework in which we can treat both the heavy and light quark region in the same manner and systematically reduce the systematic uncertainties. To examine applicability of anisotropic lattice, we calculate the charmed meson spectrum and decay constants in quenched approximation. We find consistent result with most advanced results on isotropic lattices.