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.
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 presents a no-go theorem demonstrating that standard finite-width neural network ensembles cannot consistently realize either quantum or effective field theories on a computer due to failures in reflection positivity and scale separation, with only specific infinite-width limits or relaxations of finite variance and rotation invariance offering potential escapes.
This paper presents a novel lattice QCD calculation of the neutron electric dipole moment induced by the QCD theta term using the Feynman-Hellmann theorem and background electric fields, yielding a result that confirms the strong-CP problem by constraining the theta angle to .
This paper incorporates the resonance into heavy-baryon chiral perturbation theory calculations to show that it restores power counting for the axial-vector charge, significantly reduces the QED radiative correction to the ratio, and increases pion-induced radiative corrections to inverse beta decay by a factor of 1.2–1.3.
This paper investigates the glueball content of the resonance by analyzing light-cone distribution amplitudes and a tetra-mixing scheme to predict branching ratios for heavy quarkonium radiative decays and electroproduction cross sections, offering testable theoretical predictions for current BESIII and Belle-II experiments.
This paper demonstrates that by optimizing the exponentiated-Hamiltonian decomposition for product-formula algorithms, the T-gate cost of simulating quantum chromodynamics in the electric basis can be reduced by a factor of nearly , effectively removing an exponential-in- overhead previously attributed to the method.
This paper presents the first application of unbiased exponential resummation to (2+1)-flavor lattice QCD at physical quark masses, yielding consistent determinations of the QCD pseudocritical temperature and curvature coefficient that validate the method as a reliable approach for probing the QCD crossover at small finite baryon density.
This paper demonstrates that while Lorentzian Kähler fermions on Minkowski spacetime are inherently non-unitary when interpreted as antisymmetric tensor fields, unitarity can be restored via a modified inner product involving an operator that ensures positive norms but breaks Lorentz covariance, ultimately rendering the theory equivalent to four Dirac fermions in flat space.
This paper employs gauge/string duality to model a system, demonstrating that its ground state can manifest as a hadronic molecule, a tetraquark, or a superposition depending on geometry, while also deriving asymptotic energy expressions and confirming the universality of string tension for multiquark configurations.
Through numerical simulations of a four-dimensional lattice Higgs model with staggered fermions, the authors identify a massive symmetric phase separated from a massless symmetric phase by an intermediate anti-ferromagnetic phase, converging at a unique multicritical point where fermion bilinear condensates vanish but susceptibilities diverge, suggesting the existence of Symmetric Mass Generation potentially driven by topological defect condensation.
This lattice QCD study investigates -wave and scatterings at unphysical pion masses, revealing that quark rearrangement dominates the interactions and supporting the assignment of the resonance while suggesting a near-threshold scalar structure in the channel that may correspond to the .