630 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.
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Below are the latest papers in High Energy Physics – Lattice, curated directly from arXiv and ready for you to explore.
This paper presents the first QCD determination of an energy-dependent two-hadron form factor by combining lattice QCD calculations of finite-volume electromagnetic matrix elements with a finite-volume formalism to constrain the infinite-volume forward amplitude, thereby validating the approach for studying the electroweak structure of resonances and multi-hadron states.
This paper presents a high-precision lattice QCD calculation of the hadronic contributions to the running of the electromagnetic coupling and the electroweak mixing angle, revealing significant tensions with data-driven estimates at intermediate energy scales while providing a more precise determination of the coupling at the Z-pole that slightly deviates from global electroweak fit predictions.
This paper analytically identifies Gauss law sectors in U(1) quantum link models that are free of the fermion sign problem, revealing that the ground state corresponds to a quantum dimer model with mobile monomers while the conventional zero-charge sector maps to a fully packed loop model, thereby enabling efficient Monte Carlo simulations of specific low-temperature phases.
This paper presents a high-precision first-principles calculation of the hadronic running of electroweak gauge couplings using lattice QCD and the Euclidean split technique, achieving a determination of the electromagnetic coupling at the Z-boson mass scale that is more than twice as precise as recent phenomenological estimates and reveals a significant deviation from -based results at low energy.
This paper summarizes recent developments, opportunities, and persistent challenges in reconstructing smeared spectral functions from Euclidean correlators in lattice QCD, a crucial step for calculating various physical observables despite the intrinsic difficulties of the ill-posed inverse problem.
The authors propose Gaussian Mixture Model (GMM)-based scalar potentials that combine the efficient sampling advantages of spin models with the ability to capture radial fluctuations, thereby enabling the study of spontaneous symmetry breaking and critical phenomena within the same universality classes as standard scalar theories.
This paper extends previous lattice QCD studies of Double Parton Distributions by investigating their dependence on lattice artifacts, including finite volume effects, lattice spacing, and mass parameters, using Wilson-Clover fermion ensembles from the CLS collaboration to improve precision for Standard Model background predictions at the HL-LHC.
This paper analytically and numerically demonstrates the equivalence between the three-body formalism and the two-body left-hand cut approach for resolving exchange singularities in lattice QCD, while highlighting that exponentially suppressed finite-volume effects neglected by both methods can significantly compromise amplitude extraction at small lattice volumes.
This paper constructs helicity-conditioned statistical states for a Whitney-discretized electromagnetic field on a closed three-manifold, deriving explicit information-geometric properties such as Fisher information and relative entropy to characterize these states as conditioned inferences rather than dynamical equilibria.
This paper investigates the metastability and accretion dynamics of fuzzy spheres in a three-matrix model, revealing that while single spheres are stable, concentric "onion-like" configurations become increasingly long-lived due to logarithmically growing stiffness, with transition rates quantitatively matching one-loop effective action predictions driven by sphere center fluctuations.