Mellin Moments of the Unpolarized Gluon PDF in the Proton from Nonlocal Operators in Lattice QCDWe present a lattice QCD determination of the Mellin moments of the unpolarized gluon parton distribution function in the proton. The analysis is based on matrix elements of nonlocal gluon operators…Joseph Delmar, Krzysztof Cichy, Martha Constantinou et al.·May 28, 2026SaveLearn
Higher Mellin Moments of the Unpolarized PDF of the Pion and the Kaon from Lattice QCDWe present results on the Mellin moments of the unpolarized parton distribution function (PDF) of the pion and kaon up to the fourth order. The computation is done using one Nf=2+1+1 gauge…Constantia Alexandrou, Simone Bacchio, Priyajit Jana et al.·May 28, 2026SaveLearn
Electromagnetic pion mass splitting using a Pauli-Villars-regulated photon propagatorWe present a lattice QCD calculation of the charged-neutral pion mass splitting Mπ+ - Mπ0 at O(αem) using a recently proposed framework based on a Pauli-Villars (PV)…Alessandro De Santis, Dominik Erb, Harvey B. Meyer·May 28, 2026SaveLearn
A note on a better conditioned Domain Wall OperatorThis is a brief note on 'A better conditioned Domain Wall Operator', which provides a more detailed explanation of the domain wall-to-overlap transformation with the inclusion of the alpha…Hartmut Neff·May 28, 2026SaveLearn
Ξb Ξ form factors from lattice QCD and Standard-Model predictions for Ξb Ξμ+μ- and Ξb Ξγ decaysWe present the first lattice QCD determination of the Ξb Ξ vector, axial-vector, and tensor form factors, which are relevant for the theory of rare decays including Ξb Ξ+- and…Callum Farrell, Stefan Meinel·May 28, 2026SaveLearn
A Unified Neural-Network Framework for Nucleon Imaging from Numerical Simulations of QCDParton distributions encode the momentum-space structure and, in their generalizations, the spatial tomography of quarks and gluons inside hadrons, the building blocks of visible matter. We present a…Min-Huan Chu, Krzysztof Cichy, Martha Constantinou et al.·May 28, 2026SaveLearn
Eigenvalue-cluster Algorithm for Matrix Monte CarloVarious physical models can be expressed in terms of matrices. A valuable tool for analysing matrix models is numerical simulations, often the Metropolis algorithm with various improvements. The…Samuel Kováčik, Matej Hrmo·May 27, 2026SaveLearn
Constrained Symplectic Quantization: Disclosing the Deterministic Framework Behind Quantum Field TheorySymplectic quantization is a functional approach to quantum field theory that allows sampling of quantum fluctuations directly in Minkowski space time by means of a Hamiltonian dynamics in an…Francesco Scardino, Martina Giachello, Giacomo Gradenigo·May 27, 2026SaveLearn
The origin of excited states of the Λ baryon at the SU(3) point from Lattice QCDIn this work we determine the finite-volume lattice QCD spectrum at the flavor symmetric SU(3) point in the meson-baryon singlet and octet irreducible representations. We construct the…Javier Suarez Sucunza, Thomas Luu, Maxim Mai et al.·May 27, 2026SaveLearn
Binding energy of the Tbb tetraquark from lattice QCD with relativistic and nonrelativistic heavy-quark actionsWe present a new determination of the b b u d (JP=1+, I=0) tetraquark binding energy using lattice QCD with domain-wall light quarks and a nonperturbatively tuned three-parameter…Jakob Hoffmann, Stefan Meinel·May 27, 2026SaveLearn
Toward precise ξ gauge fixing for the lattice QCDLattice QCD provides a first-principles framework for solving Quantum Chromodynamics (QCD). However, its application to off-shell partons has been largely restricted to the Landau gauge, as achieving…Li-Jun Zhou, Dian-Jun Zhao, Wei-jie Fu et al.·May 27, 2026SaveLearn
Flow-Based Global Proposals for Monte Carlo Sampling in SU(2) Lattice Gauge TheoryWe propose a formally valid machine-learning-assisted global proposal mechanism for Monte Carlo sampling in lattice gauge theory. The construction is based on a coupling-flow update on the SU(2)…Seung-il Nam·May 26, 2026SaveLearn
Formal Naive Dirac Operators and Graph TopologyMotivated by a recent conjecture of Misumi and Yumoto relating the number of zero modes of lattice Dirac operators to the sum of the Betti numbers of the underlying spacetime manifold, we study…G. M. von Hippel·May 26, 2026SaveLearn
Machine learning in phase transition analysis of lattice quantum gravityUsing numerical data coming from Monte Carlo simulations of four-dimensional Causal Dynamical Triangulations, we study how automated machine learning algorithms can be used to recognize transitions…Jan Ambjorn, Zbigniew Drogosz, Jakub Gizbert-Studnicki et al.·May 23, 2026SaveLearn
Intrinsic Width of the Flux Tube as a tool to explore confining mechanisms in Lattice Gauge TheoriesWe study the profile of the flux tube in the SU(2) gauge model in 2+1 dimensions, with a particular attention to the so called "intrinsic width" which drives the exponential decay of the flux…Michele Caselle, Elia Cellini, Alessandro Nada et al.·May 22, 2026SaveLearn
Finite-volume analysis of the H-dibaryon including left-hand-cut effectsWe implement the finite-volume N/D representation to study two-baryon interactions from lattice QCD data. We include the left-hand cut induced by one-pion exchange in this formalism, and study the…Arkaitz Rodas, Lin Qiu, César Fernández-Ramírez et al.·May 21, 2026SaveLearn
Complete lattice QCD calculation of K- -ν'+'- form factorsWe present the first complete lattice QCD calculation of the four structure-dependent form factors governing the rare charged kaon decay K- - ν '+ '-, with…R. Di Palma, R. Frezzotti, G. Gagliardi et al.·May 21, 2026SaveLearn
Normalizing flows for all-orders QED corrections in lattice field theoryThis work develops a framework to apply normalizing-flow transformations of field configurations for all-orders Quantum Electrodynamics (QED) corrections in lattice field theory. This opens a new…Nils Hermansson-Truedsson, Gurtej Kanwar·May 21, 2026SaveLearn
Chiral Properties of (2\!+\!1)-Flavor QCD in Magnetic Fields at Zero TemperatureWe present a lattice QCD study of the chiral properties of (2\!+\!1)-flavor QCD in background magnetic fields at zero temperature with physical pion masses. Simulations are performed using the…Heng-Tong Ding, Dan Zhang·May 20, 2026SaveLearn
The Causal Bootstrap: Bounding Smeared Spectral Functions from Non-Perturbative Euclidean DataThis work introduces the causal bootstrap, a framework for bounding smeared spectral observables from finite non-perturbative Euclidean data. The method optimizes over the convex set of positive…Ryan Abbott, Sarah Fields, William I. Jay et al.·May 19, 2026SaveLearn
Quantum Simulation of Gauge Theories for Particle and Nuclear PhysicsLattice field theory, along with its algorithmic and hardware ecosystems, has been at the forefront of computational particle and nuclear physics. It continues to deliver impressive results on the…Zohreh Davoudi·May 19, 2026SaveLearn
Charmonium properties at high temperatures from lattice QCDWe study charmonium properties at non-zero temperature in the temperature range 153 MeV <T< 305 MeV using lattice QCD. We use HISQ action for dynamical quarks and Wilson clover action for valence…Rasmus Normann Larsen, Peter Petreczky, Jorge Luis Dasilva Golan et al.·May 19, 2026SaveLearn
Tightening energy-based boson truncation bound using Monte Carlo-assisted methodsQuantum simulation offers a promising framework for quantum field theory calculations. Obtaining reliable results, however, requires careful characterization of systematic uncertainties. One…Jinghong Yang, Christopher F. Kane, Shabnam Jabeen·May 19, 2026SaveLearn
Pion and Kaon PDFs from Lattice QCD via Large Momentum Effective Theory and Short-Distance FactorizationIn this work, we present a first-principles lattice-QCD calculation of the unpolarized quark PDF for the pion and the kaon. The lattice data rely on matrix elements calculated for boosted mesons…Joshua Miller, Joseph Torsiello, Isaac Anderson et al.·May 19, 2026SaveLearn
Renormalization Group Approach to ConfinementWhile we have several complementary models of confinement, some of which are phenomenologically appealing, we do not have the ability to calculate analytically even simple aspects of confinement, let…Gerrit Schierholz·May 19, 2026SaveLearn