hep-lat papers | Gist.Science

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

Symmetry-based theory of Dirac fermions on two-dimensional hyperbolic crystals: Coupling to the spin connection

This paper establishes a symmetry-based framework for Dirac fermions on two-dimensional hyperbolic lattices by incorporating spin-curvature coupling via a discrete spin connection, demonstrating through both continuum theory and numerical simulations that this interaction leads to a robust, nonvanishing low-energy density of states which enhances susceptibility to interaction-driven instabilities.

Ana Djordjević, Marija Dimitrijević Ćirić, Vladimir Juričić2026-07-29

⚛️ lattice

Future Requirements of Lattice Field Theory Calculations on European High-Performance Computing Facilities

This paper outlines the computational profile of lattice QCD and details the necessary hardware, software, and human resource requirements to sustain progress in lattice field theory research on current and future European high-performance computing infrastructures.

Gert Aarts, Gunnar Bali, Jacob Finkenrath, Stefan Krieg, Antonio Rago, Carsten Urbach, Hartmut Wittig2026-07-29

⚛️ lattice

Normalizing Flows to Reconstruct Pseudo-PDFs

This paper presents a novel framework that combines Gaussian Process priors with invertible neural networks to reconstruct parton distribution functions (PDFs) from synthetic matrix-element data, effectively preserving physical constraints and extrapolation properties while learning a posterior distribution consistent with limited Ioffe-time data.

Yamil Cahuana Medrano, Kostas Orginos2026-07-29

⚛️ lattice

Radiative decays of the $h_c$ meson from lattice QCD

This paper presents the first lattice QCD calculation of the radiative decays $h_c \to \gamma \eta$ and $h_c \to \gamma \eta'$ , utilizing novel techniques to separate form factors and revealing a decay rate suppression consistent with previous $J/\psi$ results, while also providing theoretical predictions for the unmeasured Dalitz decays $h_c \to \ell^+ \ell^- \eta^{(\prime)}$ .

Mischa Batelaan, Jozef J. Dudek, Robert G. Edwards2026-07-29

⚛️ lattice

SU($2$) string tension in the continuum limit using an effective theory of center vortices

This paper utilizes an effective theory of center vortices to demonstrate the area law fall-off and derive the string tension for SU(2) gauge theory in three-dimensional Euclidean space-time, revealing that the repulsive force between vortices increases with temperature to facilitate the deconfinement regime.

Zahra Asmaee, Motahareh Kiamari, Sedigheh Deldar2026-07-28

⚛️ lattice

Thermodynamic Diagnostics for Complex Langevin Simulations: The Role of Configurational Temperature

This paper proposes configurational temperature, a diagnostic tool derived from action gradients and Hessians, as a highly sensitive method for detecting algorithmic errors and ensuring correct Boltzmann sampling in Complex Langevin simulations, thereby addressing a critical limitation of existing drift-based diagnostics.

Anosh Joseph, Arpith Kumar2026-07-28

⚛️ lattice

Diffusion Models for SU(2) Lattice Gauge Theory in Two Dimensions

This paper demonstrates that score-based diffusion models, utilizing quaternion parameterization and physics-conditioned sampling, can accurately generate configurations for two-dimensional SU(2) lattice gauge theory across varying couplings and lattice sizes without retraining, achieving results consistent with exact analytical predictions.

H. Alharazin, J. Yu. Panteleeva, B. -D. Sun2026-07-28

⚛️ lattice

Effects of flavor-mixings on charged kaon and pion parton distribution functions

This paper investigates the impact of a novel flavor-mixing interaction arising from vacuum polarization on the parton distribution functions of charged kaons and pions within the U(3) Nambu--Jona-Lasinio model, demonstrating that these mixing effects, which are proportional to quark effective mass differences, significantly improve the agreement of theoretical predictions with experimental data at specific momentum fractions.

Fabio L. Braghin, Parada T. P. Hutauruk2026-07-28

⚛️ lattice

Revisiting Quark Confinement in the Proton through the Force on Quarks

This paper improves the analysis of quark confinement in the proton by incorporating light-cone QCD sum rules and formulating the quark force reconstruction as a regularized inverse problem, yielding a less model-dependent determination that remains consistent with a linear QCD potential.

Ji-Xin Yu, Ao-Sheng Xiong, Ji Xu, Fu-Sheng Yu, Yong Zheng2026-07-27

⚛️ lattice

Hot and Dense Medium Effects on the $B_s^$ and $B^$ Multiplets

Using QCD sum rules at finite temperature and density, this study reveals that while the in-medium masses of $B_s^*$ and $B^*$ multiplets remain remarkably stable with only minor shifts, their decay constants are highly sensitive to the medium, exhibiting significant particle-antiparticle asymmetry driven by baryon density that provides a theoretical foundation for future heavy-ion collision experiments.

K. Azizi, N. Er, J. Y. Süngü2026-07-27

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hep-lat

Symmetry-based theory of Dirac fermions on two-dimensional hyperbolic crystals: Coupling to the spin connection

Future Requirements of Lattice Field Theory Calculations on European High-Performance Computing Facilities

Normalizing Flows to Reconstruct Pseudo-PDFs

Radiative decays of the hch_chc​ meson from lattice QCD

SU($2$) string tension in the continuum limit using an effective theory of center vortices

Thermodynamic Diagnostics for Complex Langevin Simulations: The Role of Configurational Temperature

Diffusion Models for SU(2) Lattice Gauge Theory in Two Dimensions

Effects of flavor-mixings on charged kaon and pion parton distribution functions

Revisiting Quark Confinement in the Proton through the Force on Quarks

Hot and Dense Medium Effects on the Bs∗B_s^*Bs∗​ and B∗B^*B∗ Multiplets

Radiative decays of the $h_c$ meson from lattice QCD

Hot and Dense Medium Effects on the $B_s^$ and $B^$ Multiplets