537 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 critiques a recent lattice QCD study that claims to exclude a QCD critical endpoint below MeV, arguing that the entropy-contour method used fails to directly probe critical singularities and therefore cannot provide model-independent constraints on the critical point's location.
This paper computes the entanglement entropy and spectrum of the massive Schwinger model at finite using a chirally rotated lattice Hamiltonian, revealing that the entanglement peak at arises from competing electric-flux vacuum branches and demonstrating that the entanglement Hamiltonian aligns with the Bisognano--Wichmann theorem in the infrared sector.
This paper presents a lattice field theory analysis of the 3D chiral Heisenberg model using domain wall fermions and Rational Hybrid Monte Carlo simulations to locate the SU(2) to U(1) phase transition, yielding critical exponents that align more closely with 3D covariant field theory estimates than previous (2+1)D results.
This paper utilizes Born-Oppenheimer Effective Field Theory and lattice QCD calculations to demonstrate that the near-degeneracy and specific decay patterns of the hidden-bottom tetraquarks and arise from the degeneracy of their underlying light degrees of freedom, identified as and adjoint mesons.
This paper investigates the thermal static potential in (2+1)-flavor QCD at finite density using a Taylor expansion, revealing an enhancement of in-medium screening in both real and imaginary parts that offers new constraints on heavy-quark interactions relevant to the RHIC Beam Energy Scan and future FAIR experiments.
Using CLS lattice ensembles with a refined analysis strategy involving telescopic series and new kernel functions, this paper presents an updated, high-precision ab initio determination of the hadronic vacuum polarization contribution to the running of the electromagnetic coupling and the electroweak mixing angle, aiming to meet the projected precision requirements of future electroweak measurements at next-generation colliders.
This paper presents a strategy to determine the running of the strong coupling in $SU(3)$ Yang-Mills theory using a finite-volume scheme with twisted boundary conditions and a gradient-flow coupling, demonstrating preliminary continuum extrapolation results that promise reduced statistical errors and the elimination of linear cutoff effects.
This paper extends the Worldvolume Hybrid Monte Carlo algorithm to systems defined on compact group manifolds by introducing a symplectic structure on the worldvolume's tangent bundle, thereby offering a reliable and computationally efficient framework for addressing the numerical sign problem in lattice gauge theories while resolving ergodicity issues common in Lefschetz thimble approaches.
This paper proposes a new, efficient method for determining non-perturbatively renormalized quark masses using gradient flow and short-flow-time expansion with RG-improved matching to the -scheme, successfully applying it to RBC/UKQCD ensembles to obtain precise values for the strange and charm quark masses.
This paper presents a new formalism for estimating truncation errors in the electric basis of lattice gauge theory simulations on quantum computers, leveraging Hilbert space fragmentation to demonstrate that errors decay factorially with field truncation, thereby improving previous error estimates by a factor of up to for models like the Schwinger model and pure U(1) gauge theory.