Heavy quark thermodynamics with anisotropic lattices

TL;DR

This paper reports on lattice QCD studies of heavy quarkonia and B mesons at high temperatures, revealing mass shifts, spectral properties, and potential calculations relevant for understanding quark-gluon plasma.

Contribution

First lattice results for B meson spectral functions at high temperature and high-precision static quark potential calculations using anisotropic lattices.

Findings

Heavy quarkonium exhibits a negative mass shift and increased thermal width.

First lattice spectral functions for B mesons at high temperature.

Preliminary high-precision static quark potential results.

Abstract

We present recent results from the FASTSUM collaboration, using anisotropic lattice QCD to study spectral properties of heavy quarkonia and open heavy flavour systems at high temperature. For heavy quarkonium, our results using a number of different methods suggest a small but significant and robust negative mass shift as well as an increasing thermal width. We present the first lattice results for masses and spectral functions of B mesons at high temperature, and preliminary results for a high-precision calculation of the static quark potential.