Hep-Lat, short for High Energy Physics – Lattice, explores the fundamental forces of nature by simulating particle interactions on a digital grid. Instead of relying solely on abstract equations, researchers in this field use powerful computers to model how quarks and gluons bind together, offering deep insights into the structure of matter that are often impossible to derive analytically.

Gist.Science ensures these complex discoveries from arXiv remain accessible to everyone. We process every new preprint in this category as it is posted, providing both plain-language explanations for the curious and detailed technical summaries for experts. This dual approach bridges the gap between cutting-edge simulation work and broader scientific understanding.

Below are the latest papers in High Energy Physics – Lattice, curated directly from arXiv and ready for you to explore.

Lattice studies of chimera baryons in Sp(4) gauge theory

This paper presents non-perturbative lattice calculations of the low-lying spectrum and matrix elements of chimera baryons within a Sp(4) gauge theory, a key component of composite Higgs models, utilizing both quenched and dynamical fermion approximations.

Jong-Wan Lee, Ed Bennett, Luigi Del Debbio, Niccolò Forzano, Ryan C. Hill, Deog Ki Hong, Ho Hsiao, C. -J. David Lin, Biagio Lucini, Alessandro Lupo, Maurizio Piai, Davide Vadacchino, Fabian Zierler2026-04-07⚛️ hep-lat

A Precision Test of First Row CKM Unitarity from Lattice QCD

This paper reviews the Fermilab Lattice and MILC collaborations' efforts to perform a correlated lattice QCD analysis using Highly Improved Staggered Quarks and Staggered Chiral Perturbation Theory to precisely determine the CKM matrix elements Vud|V_{ud}| and Vus|V_{us}| without nuclear inputs, thereby testing the first-row unitarity of the CKM matrix and probing physics beyond the Standard Model.

Ramón Merino2026-04-07⚛️ hep-lat

New high-precision bb, cc, and ss masses from pseudoscalar-pseudoscalar correlators in nf=4n_f=4 lattice QCD

This paper presents new, high-precision determinations of the MS\overline{\mathrm{MS}} masses for the bb, cc, and ss quarks using nf=4n_f=4 lattice QCD simulations with HISQ discretization and QED corrections, achieving some of the most accurate values to date while providing a detailed analysis of discretization errors and isospin corrections.

Brian Colquhoun (HPQCD Collaboration), Christine T. H. Davies (HPQCD Collaboration), Daniel Hatton (HPQCD Collaboration), G. Peter Lepage (HPQCD Collaboration)2026-04-06⚛️ hep-lat

Tensor renormalization group approach to critical phenomena via symmetry-twisted partition functions

This paper demonstrates that the tensor renormalization group (TRG) method, when applied to symmetry-twisted partition functions, provides an efficient framework for detecting spontaneous symmetry breaking and accurately determining critical temperatures and exponents in the 2D Ising, 3D O(2)O(2), and 2D O(2)O(2) (BKT) models.

Shinichiro Akiyama, Raghav G. Jha, Jun Maeda, Yuya Tanizaki, Judah Unmuth-Yockey2026-04-06✓ Author reviewed ⚛️ hep-lat

Enhanced Sampling Techniques for Lattice Gauge Theory

This paper demonstrates that enhanced sampling techniques, specifically Metadynamics with optimized bias potentials, effectively mitigate topological freezing in lattice gauge theories by reducing autocorrelation times, while also exploring strategies for accelerating bias buildup, extrapolating to larger volumes, and integrating orthogonal algorithmic improvements.

Timo Eichhorn, Gianluca Fuwa, Christian Hoelbling, Lukas Varnhorst2026-04-03⚛️ hep-lat