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.

⚛️ phenomenology

Towards power corrections in the factorization of baryon quasi-distribution amplitudes in LaMET

This paper presents the first systematic analysis of power corrections in the factorization of leading-twist baryon quasi-distribution amplitudes, deriving an exact closed-form relation that resums target-mass corrections to all orders and explicitly constructing next-to-leading-twist operators to quantify these effects for future lattice QCD determinations.

Yu-Ji Shi, Jun Zeng2026-09-01
⚛️ lattice

Bias-Corrected Machine-Learning Estimation of Chiral Condensate Cumulants: A Retrospective Lattice QCD Case Study

This retrospective Lattice QCD study demonstrates that bias-corrected machine learning models can accurately estimate chiral condensate cumulants and reduce Dirac-inversion costs to approximately 25.75% of conventional methods, provided that uncorrected estimates are adjusted to prevent amplified deviations during nonlinear reweighting.

Benjamin J. Choi, Hiroshi Ohno, Akio Tomiya2026-09-01
⚛️ lattice

D→(Kπ)27D \to (K \pi)_{\mathbf{27}} at the SU(3)-flavour-symmetric point I: Methodology and strong phase determination

This paper presents the first part of an SU(3)-flavour-symmetric lattice QCD study that determines the strong scattering phase shift for the (Kπ)27(K\pi)_{\mathbf{27}} channel and infers the corresponding strong phase of the D→KπD \to K\pi weak decay, while outlining the methodology for computing the full decay amplitude in a forthcoming publication.

Matthew Black, Felix Erben, Maxwell T. Hansen, Fabian Joswig, Nelson Pitanga Lachini, Rajnandini Mukherjee, Srijit Paul (…)2026-09-01
⚛️ lattice

Tensor states ΥBc∗−ΥB_{c}^{\ast -} and J/ψBc∗+J/ψB_{c}^{\ast +}

Using QCD sum rules, this paper investigates the masses and decay properties of the tensor hadronic molecules MTb\mathcal{M}_{\mathrm{T}}^{\mathrm{b}} (ΥBc∗−\Upsilon B_{c}^{\ast -}) and MTc\mathcal{M}_{\mathrm{T}}^{\mathrm{c}} (J/ψBc∗+J/\psi B_{c}^{\ast +}), determining their instability against dissociation and calculating their full widths through dominant and subleading decay channels.

S. S. Agaev, K. Azizi, H. Sundu2026-08-31
⚛️ quantum physics

Pulling strings in real time: flux tube dynamics in (2+1)-d Z2\mathbb{Z}_2-Higgs Gauge Theories

This paper demonstrates that Clifford-augmented matrix product states (CAMPS) enable large-scale, real-time simulations of flux tube dynamics in (2+1)-dimensional Z2\mathbb{Z}_2 Higgs gauge theories, revealing that effective string theory accurately describes collective behavior in the rough regime while uncovering a novel long-lived prethermal regime in the strong confinement limit.

Zeno Bacciconi, Martina Frau, Luca Tagliacozzo, Michele Caselle, Marcello Dalmonte2026-08-31
⚛️ lattice

Revisiting the U(1)U(1)-CPCP tension in QCD from a 1PI-action perspective

By analyzing the low-energy expansion of a 1PI effective action, this paper demonstrates that within QCD itself, it is impossible to simultaneously resolve both the U(1)U(1) and strong-CPCP problems with light quarks and a small θˉ\bar{\theta} angle, as avoiding CPCP violation at small non-zero θˉ\bar{\theta} would require the anomaly-induced contribution to the pseudoscalar mass matrix to be negligible, effectively implying the U(1)U(1) problem remains unsolved.

Paolo Di Vecchia, Francesco Sannino, Graham M. Shore, Gabriele Veneziano, Shimon Yankielowicz2026-08-31
⚛️ lattice

Scattering Equations as the lowest order K-identities in the calculation of Stringy Scaling of Hard String Scattering Amplitudes

This paper explicitly proves previously proposed K-identities for n-point hard string scattering amplitudes and introduces a generating function for an infinite set of generalized K-identities, where the lowest and next-to-leading orders correspond to the scattering equations in the CHY formalism and the original K-identities, respectively, suggesting their utility for calculating higher-order amplitudes.

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang2026-08-31
⚛️ lattice

Scalar and tensor structures in J/ψJ/ψJ/\psi J/\psi scattering from lattice QCD

This lattice QCD study determines J/ψJ/ψJ/\psi J/\psi scattering amplitudes up to 6.6 GeV, revealing an attractive interaction in the scalar channel that may correspond to the X(6200)X(6200) and a tensor resonance in the 5S2{}^5S_2 channel with parameters compatible with the X(6600)X(6600), attributing these distinct behaviors to dominant quark rearrangement effects.

Geng Li, Chunjiang Shi, Ying Chen, Wei Sun2026-08-28