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arXiv · 2604.20449

Heavy quark thermodynamics with anisotropic lattices

Jon-Ivar Skullerud·Rachel Horohan D'Arcy·Gert Aarts·Chris Allton·M. Naeem Anwar·Timothy J. Burns·Ben Page·Ryan Bignell·Sinéad M. Ryan·Benjamin Jäger·Seyong Kim·Maria Paola Lombardo·Alexander Rothkopf·Antonio Smecca
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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.

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Jon-Ivar Skullerud, Rachel Horohan D'Arcy, Gert Aarts, Chris Allton, M. Naeem Anwar, Timothy J. Burns, Ben Page, Ryan Bignell, Sinéad M. Ryan, Benjamin Jäger, Seyong Kim, Maria Paola Lombardo, Alexander Rothkopf, Antonio Smecca. 2026-04-22. Heavy quark thermodynamics with anisotropic lattices. https://arxiv.org/abs/2604.20449

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