Lattice perturbation theory for the null cusp stringWe reconsider the problem of discretising the worldsheet for the gauge-fixed Green-Schwarz superstring on a null cusp background, and present a setup which fully preserves its global $U(1)×…Gabriel Bliard, Ilaria Costa, Valentina Forini et al.·Jan 11, 2022SaveLearn
Decomposition of the static potential in the Maximal Abelian gaugeDecomposition of SU(2) gauge field into the monopole and monopoleless components is studied in the Maximal Abelian gauge using Monte-Carlo simulations in lattice SU(2) gluodynamics as well as in…V. Bornyakov, I. Kudrov, R. Rogalyov·Jan 11, 2022SaveLearn
Virtual Photon Emission in Leptonic Decays of Pseudoscalar MesonsWe present a preliminary non-perturbative lattice calculation of the form factors entering the processes K \,\,'+\,'- and of the corresponding branching ratios. These form…R. Frezzotti, G. Gagliardi, V. Lubicz et al.·Jan 11, 2022SaveLearn
Properties, ensembles and hadron spectra with Stabilised Wilson FermionsIn this joint contribution we announce the formation of the "OPEN LATtice initiative", https://openlat1.gitlab.io, to study Stabilised Wilson Fermions (SWF). They are a new avenue for QCD…Francesca Cuteri, Anthony Francis, Patrick Fritzsch et al.·Jan 11, 2022SaveLearn
Lyncs-API: a Python API for Lattice QCD applicationsWe present Lyncs-API, a Python API for Lattice QCD applications currently under development. Lyncs aims to bring several widely used libraries for Lattice QCD under a common framework. Lyncs flexibly…Simone Bacchio, Jacob Finkenrath, Christodoulos Stylianou·Jan 11, 2022SaveLearn
Implementation of Simultaneous Inversion of a Multi-shifted Dirac Matrix for Twisted-Mass Fermions within DD-αAMGAt physical light quark masses, efficient linear solvers are crucial for carrying out the millions of inversions of the Dirac matrix required for obtaining high statistics in quark correlation…Shuhei Yamamoto, Simone Bacchio, Jacob Finkenrath·Jan 11, 2022SaveLearn
Performance of several Lanczos eigensolvers with HISQ fermionsWe investigate the state-of-the-art Lanczos eigensolvers available in the Grid and QUDA libraries. They include Implicitly Restarted Lanczos, Thick-Restart Lanczos, and Block Lanczos. We measure and…Hwancheol Jeong, Carleton DeTar, Steven Gottlieb·Jan 11, 2022SaveLearn
Good and bad diquark properties and spatial correlations in lattice QCDWe study good, bad and not-even-bad diquarks on the lattice in a gauge-invariant formalism in full QCD. We establish their spectral masses with short extrapolations to the physical point, observing…Anthony Francis, Philippe De Forcrand, Randy Lewis et al.·Jan 10, 2022SaveLearn
QED with massive photons for precision physics: zero modes and first result for the hadron spectrumThe current precision reached by lattice QCD calculations of low-energy hadronic observables, requires not only the introduction of electromagnetic corrections, but also control over all the…M. A. Clark, M. Della Morte, Z. Hall et al.·Jan 10, 2022SaveLearn
Thermal phase structure of dimensionally reduced super-Yang--MillsWe present our current results from ongoing lattice investigations of the Berenstein--Maldacena--Nastase deformation of maximally supersymmetric Yang--Mills quantum mechanics. We focus on the thermal…David Schaich, Raghav G. Jha, Anosh Joseph·Jan 9, 2022SaveLearn
Correlations and Critical Behavior in Lattice GluodynamicsIn the Landau-gauge lattice gluodynamics we find that, both in the SU(2) and SU(3) theory, a correlation of the Polyakov loop with the asymmetry of the A2 gluon condensate as well as with the…V. G. Bornyakov, V. A. Goy, E. A. Kozlovsky et al.·Jan 9, 2022SaveLearn
Optimized Two-Baryon Operators in Lattice QCDA set of optimized interpolating operators which are dominantly coupled to each eigenstate of two baryons on the lattice is constructed by the HAL QCD method. To test its validity, we consider heavy…Yan Lyu, Hui Tong, Takuya Sugiura et al.·Jan 8, 2022SaveLearn
Semileptonic D → π , D → K and Ds → K decays with 2+1f domain wall fermionsWe present the status of our project to calculate D π , D K and Ds K semileptonic form factors using domain wall fermions for both heavy and light…Peter Boyle, Luigi Del Debbio, Felix Erben et al.·Jan 7, 2022SaveLearn
Twisted mass gauge ensembles at physical values of the light, strange and charm quark massesLattice QCD simulations directly at physical masses of dynamical light, strange and charm quarks are highly desirable especially to remove systematic errors due to chiral extrapolations. However such…Jacob Finkenrath, Constantia Alexandrou, Simone Bacchio et al.·Jan 7, 2022SaveLearn
Chiral condensates and screening masses of neutral pseudoscalar mesons in thermomagnetic QCD mediumWe point out that chiral condensates at nonzero temperature and magnetic fields are in strict connection to the space-time integral of corresponding two-point neutral meson correlation functions in…H. -T. Ding, S. -T. Li, J. -H. Liu et al.·Jan 7, 2022SaveLearn
Kππ decay matrix elements at the physical point with periodic boundary conditionsWe calculate Kππ matrix elements using periodic boundary conditions as an independent calculation from our previous study with G-parity boundary conditions. We present our preliminary…Masaaki Tomii, Thomas Blum, Daniel Hoying et al.·Jan 7, 2022SaveLearn
Tackling critical slowing down using global correction steps with equivariant flows: the case of the Schwinger modelWe propose a new method for simulating lattice gauge theories in the presence of fermions. The method combines flow-based generative models for local gauge field updates and hierarchical updates of…Jacob Finkenrath·Jan 6, 2022SaveLearn
An overview of the QCD phase diagram at finite T and μIn recent years there has been much progress on the investigation of the QCD phase diagram with lattice QCD. This talk will focus on the developments in the last few years. Especially the addition of…Jana N. Guenther·Jan 6, 2022SaveLearn
Neural Network Field Transformation and Its Application in HMCWe propose a generic construction of Lie group agnostic and gauge covariant neural networks, and introduce constraints to make the neural networks continuous differentiable and invertible. We combine…Xiao-Yong Jin·Jan 5, 2022SaveLearn
Status of Lattice QCD Determination of Nucleon Form Factors and their Relevance for the Few-GeV Neutrino ProgramCalculations of neutrino-nucleus cross sections begin with the neutrino-nucleon interaction, making the latter critically important to flagship neutrino oscillation experiments, despite limited…Aaron S. Meyer, André Walker-Loud, Callum Wilkinson·Jan 5, 2022SaveLearn
Tensor renormalization of three-dimensional Potts modelWe study the q-state Potts models on a cubic lattice in the thermodynamic limit using tensor renormalization group transformations with the triad approximation. By computing the thermodynamic…Raghav G. Jha·Jan 5, 2022SaveLearn
Symmetries of Thirring models on 3d latticesWe review some recent developments about strongly interacting relativistic Fermi theories in three spacetime dimensions. These models realize the asymptotic safety scenario and are used to describe…Andreas W. Wipf, Julian J. Lenz·Jan 5, 2022SaveLearn
A numerical and theoretical study of multilevel performance for two-point correlator calculationsAn investigation of the performance of the multilevel algorithm in the approach to criticality has been undertaken using the Ising model, performing simulations across a range of temperatures.…Ben Kitching-Morley, Andreas Jüttner·Jan 5, 2022SaveLearn
Pion electric polarizabilities from lattice QCDWe report a first principle lattice calculation of the pion electric polarizability απ at the physical pion mass. First, we derive the master formula, which relates the pion…Xu Feng, Taku Izubuchi, Luchang Jin et al.·Jan 5, 2022SaveLearn
The hyperon spectrum from lattice QCDHyperon decays present a promising alternative for extracting Vus from lattice QCD combined with experimental measurements. Currently Vus is determined from the kaon…Nolan Miller, Grant Bradley, M. A. Clark et al.·Jan 4, 2022SaveLearn