arXiv:2510.02954·v1·High Energy Physics — Lattice
Approaching the continuum with anisotropic lattice thermodynamics
Jon-Ivar Skullerud🇮🇪 · Gert Aarts🇬🇧 · Chris Allton🇬🇧 · M. Naeem Anwar🇬🇧 · Ryan Bignell🇮🇪 · Tim Burns🇬🇧 · Simon Hands🇬🇧 · Rachel Horohan D'Arcy🇮🇪 · Ben Jäger🇩🇰 · Seyong Kim🇰🇷 · Alan Kirby🇬🇧 · Maria Paola Lombardo🇮🇹
Abstract
The FASTSUM collaboration has a long-standing programme of using anisotropic lattice QCD to investigate strong interaction thermodynamics, and in particular spectral quantities. Here we present first results from our new ensemble which has a temporal lattice spacing a_t=15am and anisotropy xi=a_s/a_t=7, giving unprecedented resolution in the temporal direction. We show results for the chiral transition, vector-axial-vector degeneracy, and heavy quarkonium, and compare them with earlier results with coarser time resolution.
Comments: 12 pages,proceedings of QCD in Extreme Conditions (XQCD25),Wrocław, 2-4 July 2025