450 papers
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.
The paper introduces PRBench, a rigorous benchmark comprising 30 expert-curated physics tasks for evaluating the end-to-end reproduction capabilities of AI agents, revealing that current models struggle significantly with code correctness, data accuracy, and achieving successful reproduction despite their advanced reasoning abilities.
This paper presents a comprehensive theoretical calculation of the magnetic moments for open heavy-flavor ( and ) molecular pentaquark octets within a constituent quark model, revealing distinct electromagnetic signatures that differentiate between symmetric and antisymmetric light-diquark configurations and provide crucial benchmarks for identifying these states in future experiments.
This paper demonstrates the extraction of the four form factors describing exclusive semileptonic decays using the narrow width approximation, based on RBC/UKQCD lattice QCD simulations with 2+1 flavor gauge field ensembles employing Shamir domain-wall fermions for light, strange, and charm quarks and the relativistic heavy quark action for bottom quarks.
This paper presents the first lattice-QCD determination of dimension-six four-quark matrix elements for heavy-meson lifetime ratios using gradient flow renormalization on 2+1-flavor domain-wall fermion ensembles, achieving NNLO matching to the scheme and providing precise bag parameters with a full error budget.
This paper demonstrates that the gradient flow combined with short flow-time expansion (GF+SFTX) serves as an effective renormalization procedure for calculating precise bag parameters of four-quark operators relevant to neutral heavy-meson mixing and lifetimes, successfully applying this method to six RBC/UKQCD domain-wall fermion ensembles to obtain results consistent with existing determinations while providing a robust framework for handling power-divergent mixing in future lattice computations.
This paper reviews recent advances in lattice QCD calculations of hadron structure, specifically for pions, kaons, and nucleons, highlighting how these theoretical developments provide essential insights to inform the scientific agenda of the Electron-Ion Collider.
This paper outlines the key concepts of the Worldvolume Hybrid Monte Carlo method and presents its extension to group manifolds, establishing a rigorous framework for applying this efficient algorithm to lattice gauge theories while avoiding the ergodicity issues of Lefschetz-thimble approaches.
This paper constructs a set of conserved non-singlet charges for the 3+1 dimensional staggered fermion Hamiltonian by decomposing fermions into Majorana components and utilizing lattice translation symmetries, demonstrating that while these charges are non-commutative on the lattice, they generate axial SU(2)_L × SU(2)_R transformations in the continuum limit.
This paper reconstructs vector and axial charge operators within the Wilson fermion formalism to formulate a lattice gauge theory with exact axial symmetry and quantized chirality, enabling the study of Symmetric Mass Generation in 3-4-5-0 models.
This paper presents ongoing lattice studies of two-dimensional maximally supersymmetric Yang-Mills theory, including the construction of a supersymmetry-preserving lattice action and the development of new simulation routines, to facilitate numerical tests of gauge-gravity duality and explore non-perturbative phenomena.