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.
This paper identifies a novel noncompact Lie symmetry, generated by on-site U(1) fermion number and non-on-site Majorana translation, that enforces the existence of Fermi surfaces with at least two noncontractible components in quantum lattice fermion models, thereby realizing a powerful form of symmetry-enforced gaplessness.
This paper provides direct experimental evidence for quark confinement within the proton by demonstrating that the force between quarks is attractive and constant across a wide range of positions, derived from available data and Quantum Chromodynamics.
This paper employs the local operator-product-expansion method to independently derive twist-2 relations, specifically a Wandzura-Wilczek-like relation and a Burkhardt-Cottingham-like sum rule, for the twist-3 tensor-polarized distribution function of spin-1 hadrons, thereby providing a robust theoretical foundation for upcoming electron-deuteron deep inelastic scattering experiments at JLab.
This paper reviews variance-reduction strategies for lattice QCD that utilize quark propagator decompositions to lower the computational cost of calculating correlation functions, particularly for precision observables and large-volume simulations.
This paper employs QCD sum rules to theoretically predict the ground-state masses of various hypothetical single-top baryons and mesons, finding that many of these states may exhibit weak binding or lie near constituent mass thresholds, thereby providing essential benchmarks for future experimental searches at the LHC and next-generation facilities.
This paper introduces an efficient transformer-based neural sampler that generates groups of spins and utilizes approximated probabilities to overcome computational inefficiencies, enabling the sampling of large two-dimensional Ising and Edwards-Anderson spin systems with significantly improved effective sample sizes compared to previous state-of-the-art methods.
This paper presents the first calculation of next-to-next-to-leading order (NNLO) QCD radiative corrections for deeply virtual pion production, demonstrating that these two-loop corrections substantially improve the agreement between perturbative QCD predictions and experimental data from JLab while also refining theoretical descriptions of transverse single-spin asymmetries for future facilities like the EIC and EicC.
This paper calculates the perturbative conversion between the scheme and momentum-space subtraction schemes for semileptonic weak Hamiltonians, demonstrating how judicious choices of projectors eliminate artificial scale dependence caused by Ward identity violations and yield Wilson coefficients with significantly reduced renormalization scale sensitivity.
This paper investigates the hadronic molecule using QCD sum rules, predicting its mass to be MeV and its total width to be MeV, which indicates that the state decays strongly into ordinary mesons via dominant fall-apart and subdominant annihilation mechanisms.
This pedagogical review chapter summarizes first-principles lattice QCD simulations and effective theory calculations regarding the thermodynamics of magnetized quark-gluon matter under extreme conditions of high temperature, density, and strong electromagnetic fields, which are relevant to heavy-ion collisions, neutron stars, and the early Universe.