Lattice computation of the Kugo-Ojima correlation functionAs of today, color confinement in Quantum Chromodynamics remains a mystery from the theoretical point of view. So far, no analytical proof of color confinement has been found and the mechanism that…Nuno Miguel Rebelo Brito·Oct 13, 2023SaveLearn
Gravitational form factors of the proton from lattice QCDThe gravitational form factors (GFFs) of a hadron encode fundamental aspects of its structure, including its shape and size as defined from e.g., its energy density. This work presents a…Daniel C. Hackett, Dimitra A. Pefkou, Phiala E. Shanahan·Oct 12, 2023SaveLearn
Low-lying baryon resonances from lattice QCDRecent results studying the masses and widths of low-lying baryon resonances in lattice QCD are presented. The S-wave Nπ scattering lengths for both total isospins I = 1/2 and I = 3/2 are…John Bulava, Barbara Cid-Mora, Andrew D. Hanlon et al.·Oct 12, 2023SaveLearn
Lattice real-time simulations with learned optimal kernelsWe present a simulation strategy for the real-time dynamics of quantum fields, inspired by reinforcement learning. It builds on the complex Langevin approach, which it amends with system specific…Daniel Alvestad, Alexander Rothkopf, Dénes Sexty·Oct 12, 2023SaveLearn
Spectroscopy of hadrons with heavy quarks from lattice QCDLattice QCD results on hadrons with heavy quarks are briefly reviewed. The focus is on the spectrum of conventional and exotic hadrons. Structure of certain conventional hadrons is addressed as well.Sasa Prelovsek·Oct 11, 2023SaveLearn
Topological terms with qubit regularization and relativistic quantum circuitsQubit regularization provides a rich framework to explore quantum field theories. The freedom to choose how the important symmetries of the theory are embedded in the qubit regularization scheme…Tanmoy Bhattacharya, Shailesh Chandrasekharan, Rajan Gupta et al.·Oct 10, 2023SaveLearn
Gauge field smearing and controlled continuum extrapolationsTwo popular methods to reduce discretisation effects are Symanzik improvement and gauge field smearing in the Dirac operator. Tree-level O(a2)-improved Wilson fermions can be obtained from…Andreas Risch·Oct 10, 2023SaveLearn
Unveiling SU(3) Flux Tubes At Nonzero Temperature: Electric Fields and Magnetic CurrentsWe report on the results of measuring the chromoelectric fields in a flux tube created by a static quark-antiquark pair in the finite-temperature SU(3) gauge theory. Below the deconfinement…M. Baker, V. Chelnokov, L. Cosmai et al.·Oct 6, 2023SaveLearn
Negative Coupling φ4 on the LatticeTriviality of φ4 theory in four dimensions can be avoided if the bare coupling constant is negative in the UV. Theories with negative coupling can be put on the lattice if the integration…Paul Romatschke·Oct 5, 2023SaveLearn
Localized Modes in the IR Phase of QCDInfrared (IR) dimension function dIR(λ) characterizes the space effectively utilized by QCD quarks at Dirac scale λ, and indirectly the space occupied by glue fields. It was…Andrei Alexandru, Ivan Horváth, Neel Bhattacharyya·Oct 5, 2023SaveLearn
Localization of Dirac modes in the SU(2) Higgs model at finite temperatureWe investigate the connection between localization of low-lying Dirac modes and Polyakov-loop ordering in the lattice SU(2) Higgs model at finite temperature, probed with the staggered…György Baranka, Matteo Giordano·Oct 5, 2023SaveLearn
Learning Trivializing Flows in a φ4 theory from coarser latticesThe so-called trivializing flows were proposed to speed up Hybrid Monte Carlo simulations, where the Wilson flow was used as an approximation of a trivializing map, a transformation of the gauge…David Albandea, Luigi Del Debbio, Pilar Hernández et al.·Oct 5, 2023SaveLearn
B-physics from Lattice Gauge TheoryWe discuss the main issues in dealing with heavy quarks on the lattice and shortly present the different approaches used. We discuss a selection of computations covering first the b-quark mass and…J. Tobias Tsang, Michele Della Morte·Oct 4, 2023SaveLearn
Fast Fermion Smearing Scheme with Gaussian-like ProfileWe propose a novel smearing scheme which gives a Gaussian-like profile and is more efficient than the traditional Gaussian smearing in terms of computer time consumption. We also carry out a detailed…ChuanYang Li, Terrence Draper, Jun Hua et al.·Oct 3, 2023SaveLearn
The deconfinement phase transition in Sp(2N) gauge theories and the density of states methodFirst-order phase transitions in the early universe might produce a detectable background of gravitational waves. As these phase transitions can be generated by new physics, it is important to…David Mason, Biagio Lucini, Maurizio Piai et al.·Oct 3, 2023SaveLearn
Lattice studies of Sp(2N) gauge theories using GRIDFour-dimensional gauge theories based on symplectic Lie groups provide elegant realisations of the microscopic origin of several new physics models. Numerical studies pursued on the lattice provide…Niccolò Forzano, Ed Bennett, Peter Boyle et al.·Oct 3, 2023SaveLearn
Higher-group symmetry in lattice gauge theories with restricted topological sectorsIn this paper, we give a brief overview of generalized symmetries from the point of view of the lattice regularization as a fully regularized framework. At first, we illustrate the generalization of…Motokazu Abe, Naoto Kan, Okuto Morikawa et al.·Oct 3, 2023SaveLearn
Gluon PDF of the proton using twisted mass fermionsIn this paper, we present lattice QCD results for the x-dependence of the unpolarized gluon PDF for the proton. We use one ensemble of Nf=2+1+1 maximally twisted mass fermions with a clover…Joseph Delmar, Constantia Alexandrou, Krzysztof Cichy et al.·Oct 2, 2023SaveLearn
Separation-of-charge confinement and the Higgs transition in SU(3) gauge Higgs theoryWith SU(3) gauge Higgs theory as an example, we examine critically the idea that the confinement property in an SU(N) gauge-Higgs theory, with the Higgs field in the fundamental representation,…Jeff Greensite, Hou Y. Yau·Oct 2, 2023SaveLearn
Nucleon electric polarizabilities and nucleon-pion scattering at physical pion massWe present a lattice QCD calculation of the nucleon electric polarizabilities at the physical pion mass. Our findings reveal the substantial contributions of the Nπ states to these…Xuan-He Wang, Zhao-Long Zhang, Xiong-Hui Cao et al.·Oct 2, 2023SaveLearn
Quark masses and low energy constants in the continuum from the tadpole improved clover ensemblesWe present the light-flavor quark masses and low energy constants using the 2+1 flavor full-QCD ensembles with stout smeared clover fermion action and Symanzik gauge actions. Both the fermion and…Zhi-Cheng Hu, Bo-Lun Hu, Ji-Hao Wang et al.·Oct 1, 2023SaveLearn
The Standard Model and the LatticeThe SU(3) SU(2) U(1) standard model maps smoothly onto a conventional lattice gauge formulation, including the parity violation of the weak interactions. The formulation makes use of…Michael Creutz·Sep 29, 2023SaveLearn
Zemach and Friar radii of the proton and neutron from lattice QCDWe present the first lattice-QCD result for the Zemach and Friar radii of the proton and neutron. Our calculation includes both quark-connected and -disconnected diagrams and assesses all sources of…Dalibor Djukanovic, Georg von Hippel, Harvey B. Meyer et al.·Sep 29, 2023SaveLearn
Broken Symmetry and Fractionalized Flux Strings in a Staggered U(1) Pure Gauge TheoryInspired by self-adjoint extensions of the electric field operator in the Hamiltonian formalism, we extend the Wilsonian framework of Abelian lattice gauge theory by introducing a modified action…A. Banerjee, D. Banerjee, G. Kanwar et al.·Sep 29, 2023SaveLearn
Diffusion Models as Stochastic Quantization in Lattice Field TheoryIn this work, we establish a direct connection between generative diffusion models (DMs) and stochastic quantization (SQ). The DM is realized by approximating the reversal of a stochastic process…Lingxiao Wang, Gert Aarts, Kai Zhou·Sep 29, 2023SaveLearn