Heavy-light hadrons and their excitations

TL;DR

This paper investigates the spectrum and decay constants of heavy-light hadrons using lattice QCD simulations with different quark configurations, providing insights into their excitations and mass splittings.

Contribution

It introduces a lattice QCD approach combining Chirally Improved light quarks and static heavy quarks to study heavy-light hadron excitations and decay constants.

Findings

Mass splittings and decay constant ratios calculated for heavy-light mesons and baryons.

Comparison between quenched and dynamical configurations shows differences in hadron properties.

Preliminary results on heavy-quark kinetic corrections to hadron states.

Abstract

We study the excitations of hadrons containing a single heavy quark. We present meson and baryon mass splittings and ratios of meson decay constants resulting from quenched and dynamical two-flavor configurations. Light quarks are simulated using the Chirally Improved (CI) lattice Dirac operator. The heavy quark is approximated by a static propagator, appropriate for the $b$ quark on our lattices ($1/a \sim 1-2$ GeV). We also include some preliminary calculations of the heavy-quark kinetic corrections to the states.