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.

⚛️ lattice

A Comprehensive Analysis of Bs→Ds∗∗ℓνℓB_s \to D_s^{**}\ell\nu_\ell Decays Within and Beyond the Standard Model

This paper presents a comprehensive analysis of exclusive semileptonic Bs→Ds∗∗ℓνℓB_s \to D_s^{**} \ell \nu_\ell decays within and beyond the Standard Model by employing Heavy Quark Effective Theory with a data-driven zz-expansion to predict precise lepton flavor universality ratios and evaluate the sensitivity of various observables to new physics scenarios, including the Two Higgs Doublet Model and effective field theories.

Karthik Jain, Tarun Kumar, Barilang Mawlong, Shantanu Sahoo2026-07-03
⚛️ lattice

Isospin-breaking effects in inclusive hadronic τ\tau data for the muon (g−2)(g-2) from first principles

This paper presents a first-principles Lattice QCD+QED strategy to calculate isospin-breaking effects in inclusive hadronic τ\tau decays, essential for improving the precision of the muon (g−2)(g-2) determination, by separating radiative corrections into infrared-safe classes and addressing challenges in Euclidean-to-Minkowski analytic continuation and renormalization.

Mattia Bruno, Taku Izubuchi, Christoph Lehner, Aaron S. Meyer, Julian Parrino, Xin-Yu Tuo2026-07-02
⚛️ lattice

Elastic deuteron-deuteron scattering within Nuclear Lattice Effective Field Theory

This paper presents the first nuclear lattice effective field theory calculation of low-energy deuteron-deuteron scattering in the spin-quintet 5S2^{5}S_2 channel, utilizing chiral interactions and stabilization techniques to derive consistent phase shifts and scattering parameters that reveal a stronger effective repulsion than previously reported.

Helen Meyer, Serdar Elhatisari, Ulf-G. Meißner2026-07-02
⚛️ lattice

Inclusive Bˉs↦Xsˉcℓνˉ\bar B_s\mapsto X_{\bar sc} \ell \bar \nu decays from lattice QCD: computational strategy and a first physical result

This paper presents a novel lattice QCD strategy combining non-perturbative data at lighter heavy meson masses with Operator Product Expansion predictions to compute the inclusive Bˉs→Xsˉcℓνˉ\bar B_s \to X_{\bar sc} \ell \bar \nu decay rate, achieving a 7% total uncertainty using ETMC gauge ensembles.

Alessandro De Santis, Antonio Evangelista, Gael Finauri, Roberto Frezzotti, Giuseppe Gagliardi, Paolo Gambino, Marco Gar (…)2026-07-02
⚛️ lattice

Proton and neutron electromagnetic form factors from lattice QCD in the continuum limit

This study computes the proton and neutron electromagnetic form factors in the continuum limit using Nf=2+1+1N_\mathrm{f}=2+1+1 twisted mass lattice QCD at physical pion masses, employing multi-state fits and advanced noise-reduction techniques to precisely determine electric and magnetic radii and magnetic moments with controlled statistical and systematic uncertainties.

Constantia Alexandrou, Simone Bacchio, Giannis Koutsou, Bhavna Prasad, Gregoris Spanoudes2026-07-01