Nonperturbative Determination of Collins-Soper Kernel from Quasi Transverse-Momentum Dependent Wave FunctionsIn the framework of large-momentum effective theory at one-loop matching accuracy, we perform a lattice calculation of the Collins-Soper kernel which governs the rapidity evolution of…Min-Huan Chu, Zhi-Fu Deng, Jun Hua et al.·Apr 1, 2022SaveLearn
Lattice QCD and the Computational FrontierThe search for new physics requires a joint experimental and theoretical effort. Lattice QCD is already an essential tool for obtaining precise model-free theoretical predictions of the hadronic…Peter Boyle, Dennis Bollweg, Richard Brower et al.·Mar 31, 2022SaveLearn
Algorithms for Domain Wall FermionsWe discuss algorithms for domain wall fermions focussing on accelerating Hybrid Monte Carlo sampling of gauge configurations. Firstly a new multigrid algorithm for domain wall solvers and secondly a…Peter A Boyle, Dennis Bollweg, Christopher Kelly et al.·Mar 31, 2022SaveLearn
Topological gauge actions on the lattice as Overlap fermion determinantsOverlap fermion on the lattice has been shown to properly reproduce topological aspects of gauge fields. In this paper, we review the derivation of Overlap fermion formalism in a torus of three…Nikhil Karthik, Rajamani Narayanan·Mar 30, 2022SaveLearn
Axial U(1) symmetry at high temperatures in Nf=2+1 lattice QCD with chiral fermionsWe study the U(1)A anomaly in the high-temperature phase of Nf=2+1 lattice QCD with chiral fermions. Gauge ensembles are generated with M\"obius domain-wall (MDW) fermions, and in the…Sinya Aoki, Yasumichi Aoki, Hidenori Fukaya et al.·Mar 30, 2022SaveLearn
From ten-flavor tests of the β-function to αs at the Z-poleNew tests are applied to two β-functions of the much-discussed BSM model with ten massless fermion flavors in the fundamental representation of the SU(3) color gauge group. The renormalization…Zoltán Fodor, Kieran Holland, Julius Kuti et al.·Mar 29, 2022SaveLearn
From asymptotic freedom to θ vacua: Qubit embeddings of the O(3) nonlinear σ modelConventional lattice formulations of θ vacua in the 1+1-dimensional O(3) nonlinear sigma model suffer from a sign problem. Here, we construct the first sign-problem-free…Stephan Caspar, Hersh Singh·Mar 29, 2022SaveLearn
Topological properties of minimally doubled fermions in two space-time dimensionsThe two-dimensional Schwinger model is used to explore how lattice fermion operators perceive the global topological charge q ∈ Z of a given background gauge field. We focus on…Stephan Dürr, Johannes H. Weber·Mar 29, 2022SaveLearn
Casimir boundaries, monopoles, and deconfinement transition in 3+1 dimensional compact electrodynamicsCompact U(1) gauge theory in 3+1 dimensions possesses the confining phase, characterized by a linear raise of the potential between particles with opposite electric charges at sufficiently large…M. N. Chernodub, V. A. Goy, A. V. Molochkov et al.·Mar 28, 2022SaveLearn
Non-perturbative renormalization of the QCD flavour-singlet local vector currentWe compute non-perturbatively the renormalization constant of the flavour-singlet local vector current ZV in lattice QCD with 3 massless flavours. Gluons are discretized by the Wilson plaquette…Matteo Bresciani, Mattia Dalla Brida, Leonardo Giusti et al.·Mar 28, 2022SaveLearn
The pion-nucleon sigma term from Lattice QCDWe summarize recent evidence, both from lattice QCD and chiral perturbation theory, that suggests that larger-than-expected excited-state contamination could be the reason for the tension between…Rajan Gupta, Tanmoy Bhattacharya, Martin Hoferichter et al.·Mar 25, 2022SaveLearn
QCD equation of state via the complex Langevin methodWe present lattice simulations on the phase diagram of Quantum Chromodynamics (QCD) with two light quark flavours at finite chemical potential μ. To circumvent the sign problem we use the complex…Felipe Attanasio, Benjamin Jäger, Felix P. G. Ziegler·Mar 24, 2022SaveLearn
Lattice QCD study of inclusive semileptonic decays of heavy mesonsWe present an ab initio study of inclusive semileptonic decays of heavy mesons from lattice QCD. Our approach is based on a recently proposed method, that allows one to address the study of these…Paolo Gambino, Shoji Hashimoto, Sandro Mächler et al.·Mar 22, 2022SaveLearn
On the behaviour of the interquark potential in the vicinity of the deconfinement transitionIn the vicinity of the deconfinement transition the behaviour of the interquark potential can be precisely predicted using the Effective String Theory (EST). If the transition is continuous we can…F. Caristo, M. Caselle, N. Magnoli et al.·Mar 22, 2022SaveLearn
Color confinement, chiral symmetry breaking, and catalytic effect induced by monopole and instanton creationsOur research reveals the relations among monopoles, color confinement, instantons, and chiral symmetry breaking which experiments can detect, by numerical calculations of lattice gauge theory. We…Masayasu Hasegawa·Mar 21, 2022SaveLearn
Discovering new physics in rare kaon decaysThe decays and mixing of K mesons are remarkably sensitive to the weak interactions of quarks and leptons at high energies. They provide important tests of the standard model at both first and…Thomas Blum, Peter Boyle, Mattia Bruno et al.·Mar 21, 2022SaveLearn
Dynamical quantum phase transitions in a noisy lattice gauge theoryLattice gauge theories (LGTs) form an intriguing class of theories highly relevant to both high-energy particle physics and low-energy condensed matter physics with the rapid development of…Rasmus Berg Jensen, Simon Panyella Pedersen, Nikolaj Thomas Zinner·Mar 21, 2022SaveLearn
Smoothing algorithms for projected center-vortex gauge fieldsWe study the application of SU(3) gauge field smoothing methods to Z(3)-projected center-vortex gauge fields. Due to the proportionality of the vortex links to the identity,…Adam Virgili, Waseem Kamleh, Derek Leinweber·Mar 18, 2022SaveLearn
Flavor Diagonal Nucleon ChargesThis talk provides an update on the calculation of matrix elements of flavor diagonal axial, scalar and tensor quark bilinear operators between the nucleon ground state. The simulations are done…Sungwoo Park, Tanmoy Bhattacharya, Rajan Gupta et al.·Mar 17, 2022SaveLearn
The hadronic running of the electromagnetic coupling and the electroweak mixing angle from lattice QCDWe compute the hadronic running of the electromagnetic and weak couplings in lattice QCD with Nf=2+1 flavors of O(a) improved Wilson fermions. Using two different…Marco Cè, Antoine Gérardin, Georg von Hippel et al.·Mar 16, 2022SaveLearn
Investigation of the Perturbative Expansion of Moments of Heavy Quark Correlators for Nf=0The QCD-coupling is a necessary input in the computation of many observables, and the parametric error on input parameters can be a dominant source of uncertainty. The coupling can be extracted by…Leonardo Chimirri, Rainer Sommer·Mar 15, 2022SaveLearn
Lambda-Nucleon and Sigma-Nucleon potentials from space-time correlation function on the latticeThe hyperon-nucleon interaction with the strangeness S=-1 region is complicated and difficult to investigate because its flavor sector involves all the irreducible representation except the flavor…Hidekatsu Nemura·Mar 15, 2022SaveLearn
Color-flavor reflection in the continuum limit of two-dimensional lattice gauge theories with scalar fieldsWe address the interplay between local and global symmetries in determining the continuum limit of two-dimensional lattice scalar theories characterized by SO(Nc) gauge symmetry and non-Abelian…Claudio Bonati, Alessio Franchi·Mar 14, 2022SaveLearn
Grid: OneCode and FourAPIsWe discuss a substantial update to the Grid software library for Lattice QCD, enabling it to port to multiple GPU architectures while retaining CPU vectorisation and SIMD execution within OpenMP…Peter Boyle, Guido Cossu, Gianluca Filaci et al.·Mar 13, 2022SaveLearn
Numerical Study of the Roberge-Weiss TransitionWe study the Roberge-Weiss phase transition numerically. The phase transition is associated with the discontinuities in the quark-number density at specific values of imaginary quark chemical…V. G. Bornyakov, N. V. Gerasimeniuk, V. A. Goy et al.·Mar 11, 2022SaveLearn