The Light Quark Connected Hadronic Vacuum Polarization Contribution to the muon anomaly via Sparsened Meson FieldsWe present an update on our determination of the light-quark connected contribution to the hadronic vacuum polarization (HVP) of the muon anomalous magnetic moment, aμ, on a finer lattice with…Vaishakhi Moningi, Christopher Aubin, Thomas Blum et al.·Feb 27, 2026SaveLearn
The three-loop hadronic vacuum polarization in chiral perturbation theoryHadronic vacuum polarization is a key observable in low-energy QCD, and is famously the greatest contributor to the theoretical uncertainty in the muon magnetic moment. Its long-distance part in…Mattias Sjö, Laurent Lellouch, Alessandro Lupo et al.·Feb 27, 2026SaveLearn
Isospin breaking corrections to the hadronic vacuum polarization with stochastic coordinate samplingIn the recent Muon g-2 Theory Initiative white paper update, the hadronic vacuum polarization (HVP) contribution -- which dominates the theoretical uncertainty -- is evaluated as an average of…Mattia Bruno, Vera Gülpers, Nils Hermansson-Truedsson et al.·Feb 27, 2026SaveLearn
Electromagnetic form factors and structure of the Tbb tetraquarkWe present the first lattice QCD calculation of electromagnetic form factors of a tetraquark, focusing on the Tbb = bb u d with quantum numbers I(JP) = 0(1+). The electromagnetic…Ivan Vujmilovic, Sara Collins, Luka Leskovec et al.·Feb 27, 2026SaveLearn
A novel gauge-equivariant neural-network architecture for preconditioners in lattice QCDLattice QCD simulations are computationally expensive, with the solution of the Dirac equation being the major computational bottleneck of many calculations. We introduce a novel gauge-equivariant…Simon Pfahler, Daniel Knüttel, Christoph Lehner et al.·Feb 27, 2026SaveLearn
Finite-temperature Sp(4) Yang-Mills theory: towards the continuumWe present numerical results obtained in a finite-temperature study of the Sp(4) Yang-Mills theory on the lattice. We study its first-order confinement/deconfinement phase transition, by…Fabian Zierler, Ed Bennett, Biagio Lucini et al.·Feb 27, 2026SaveLearn
Baryon masses with C-periodic boundary conditionsIsospin-breaking corrections pose a significant challenge to lattice simulations, both because of the splitting between the up and down quark masses and, in particular, the need to include QED…Anian Altherr, Isabel Campos, Roman Gruber et al.·Feb 27, 2026SaveLearn
Hadron spectroscopy and interactionsIn recent years, lattice QCD calculations of hadron spectroscopy have concentrated on resonances and shallow bound states detected via poles in two- and three-hadron scattering amplitudes. Hadron…Jeremy R. Green·Feb 26, 2026SaveLearn
Symmetric Mass Generation via Multicriticality in a 3D Lattice Gross-Neveu ModelWe investigate a three-dimensional lattice model of two flavors of massless staggered fermions coupled through two independent four-fermion interactions, UI and UB. Using large-scale…Sandip Maiti, Debasish Banerjee, Shailesh Chandrasekharan et al.·Feb 26, 2026SaveLearn
Universal and non-universal finite-volume effects in the vicinity of chiral phase transition in (2+1)-flavor QCDIn this proceeding, we discuss the finite-size scaling analysis of the order parameter related to the chiral phase transition in QCD with two massless quarks. We use data obtained in lattice QCD…Sabarnya Mitra, Jishnu Goswami, Frithjof Karsch·Feb 26, 2026SaveLearn
Spatially inhomogeneous confinement-deconfinement phase transition in rotating QGPUsing first-principles numerical simulations, we find a new spatially inhomogeneous phase in a rotating gluon plasma. This mixed phase simultaneously contains regions of both confining and…V. V. Braguta, M. N. Chernodub, Ya. A. Gershtein et al.·Feb 26, 2026SaveLearn
Non-perturbative renormalization of the energy momentum tensor in the 2d O(3) nonlinear sigma modelThe two-dimensional O(3) nonlinear sigma model is a well known toy model for studying non-perturbative phenomena in quantum field theory. A central challenge is the renormalization of the…Mika Lauk, Agostino Patella·Feb 26, 2026SaveLearn
Confinement transition to gravitational waves in the one-flavor SU(4) Hyper Stealth Dark Matter theoryThe thermodynamics of the SU(4) gauge theory with a single flavor of fundamental quarks is analyzed on the lattice with dynamical fermion simulations, which is the low-energy sector of a realistic,…V. Ayyar, R. C. Brower, G. T. Fleming et al.·Feb 26, 2026SaveLearn
Generalization of lattice Dirac operator indexWe provide a comprehensive lattice formulation of various types of the Dirac operator indices, employing K-theory to classify the Wilson Dirac operator via its spectral flow. In contrast to the…Shoto Aoki, Hajime Fujita, Hidenori Fukaya et al.·Feb 26, 2026SaveLearn
Confined and Deconfined Phases of Qubit Regularized Lattice Gauge TheoriesWe construct simple qubit-regularized Hamiltonian lattice gauge theories formulated in the monomer--dimer--tensor-network (MDTN) basis that are free of sign problems in the pure gauge sector. These…Shailesh Chandrasekharan·Feb 26, 2026SaveLearn
The hadronic tensor from four-point functions on the latticeThe hadronic tensor is the central non-perturbative object in the calculation of the cross section of lepton-hadron interactions like neutrino-nucleon scattering. It is usually parameterized in terms…Christian Zimmermann, Terrence Draper, Jian Liang et al.·Feb 25, 2026SaveLearn
Interplay of Gauss Law and the fermion sign problem in quantum link models with dynamical matterQuantum Link Models with dynamical matter coupled to spin-12 \ U(1) gauge fields in d=2+1 and 3+1 can potentially give rise to the Coulomb phase expected in quantum…Pallabi Dey, Debasish Banerjee, Emilie Huffman·Feb 25, 2026SaveLearn
Machine Learning-Based Estimation of Cumulants of Chiral Condensate via Multi-Ensemble Reweighting with Deborah.jlWe investigate a bias-corrected machine learning (ML) strategy for estimating traces of the inverse Dirac operator, Tr\, M-n (n=1,2,3,4), motivated by the need for higher-order…Benjamin J. Choi, Hiroshi Ohno, Akio Tomiya·Feb 25, 2026SaveLearn
Importance of local tetraquark operators for Tcc(3875)+The doubly charmed tetraquark Tcc(3875)+ observed at LHCb has attracted considerable interest in recent years. To accurately determine its finite-volume spectrum, a variational analysis using a…Andres Stump, Jeremy R. Green·Feb 24, 2026SaveLearn
Lattice Gauge Theory via LLVM-Level Automatic DifferentiationWe enable the automatic construction of Hybrid Monte Carlo (HMC) forces in lattice gauge theory by performing reverse-mode automatic differentiation at the level of optimized LLVM intermediate…Yuki Nagai, Akio Tomiya, Hiroshi Ohno·Feb 24, 2026SaveLearn
Resolving the structure of bound states using lattice quantum field theoriesThis work presents the first lattice calculation of a two-to-two particle matrix element of a local current. This exploratory calculation is performed using a leading-order pionless effective field…Joseph Moscoso, Felipe G. Ortega-Gama, Raúl A. Briceño et al.·Feb 23, 2026SaveLearn
The Lambda 1405 at the SU(3) point in lattice QCDThe pole structure of the (1405) has been a topic of debate for a long time. Chiral perturbation theory predicts that its experimental spectrum may be explained by a two pole structure…Javier Suarez Sucunza, Thomas Luu, Carsten Urbach·Feb 23, 2026SaveLearn
Index theorem with Minimally Doubled Fermions in four space-time dimensionsWe determine the zero eigenmode spectrum of Minimally Doubled Fermions (MDF), namely in Karsten-Wilczek (KW) and Borici-Creutz (BC) formulations on the 4-dimensional space-time lattice. We employ…Abhijeet Kishore, Subhasish Basak, Dipankar Chakrabarti·Feb 23, 2026SaveLearn
Phase diagram of a lattice fermion model with symmetric mass generationWe study the phase structure of a model containing two flavors of massless staggered fermions interacting through two independent four-fermion couplings, UI and UB, formulated on a three-dimensional…Sandip Maiti, Debasish Banerjee, Shailesh Chandrasekharan et al.·Feb 20, 2026SaveLearn
Quarkonium in non-zero isospin chemical potential environment at T 0We study how the isospin asymmetry affects quarkonium states in QCD at near zero temperature. Using lattice Non-Relativistic QCD formalism, we calculate bottom quark correlators in the gauge field…Seyong Kim, Bastian B. Brandt, Gergely Endrődi·Feb 19, 2026SaveLearn