Can One Study Heavy Meson Semileptonic Decays on Coarse Anisotropic Lattices ?

TL;DR

This paper explores the feasibility of studying heavy meson semileptonic decays on coarse lattices, demonstrating that anisotropic lattices improve signal extraction at higher momenta using improved actions.

Contribution

It provides an exploratory comparison showing that anisotropic lattices enhance signal quality in heavy meson decay simulations on coarse lattices.

Findings

Anisotropic lattices yield better signals at higher momenta.

Symanzik improved glue and NRQCD are effective on coarse lattices.

Evidence supports using anisotropy for improved decay studies.

Abstract

Exploratory studies of heavy meson semileptonic decays on coarse lattices using Symanzik improved glue, NRQCD heavy and D234 light quarks are discussed. Comparisons are made between calculations on anisotropic and isotropic lattices. We find evidence that having an anisotropy helps in extracting better signals at higher momenta.