Evidence of the Schwinger mechanism from lattice QCDIn quantum chromodynamics (QCD), gluons acquire a mass scale through the action of the Schwinger mechanism. This mass emerges as a result of the dynamical formation of massless bound-states of gluons…Mauricio Narciso Ferreira·Apr 16, 2023SaveLearn
Singlets in gauge theories with fundamental matterWe provide the first determination of the mass of the lightest flavor-singlet pseudoscalar and scalar bound states (mesons), in the Sp(4) Yang-Mills theory coupled to two flavors of…Ed Bennett, Ho Hsiao, Jong-Wan Lee et al.·Apr 14, 2023SaveLearn
Weak decay constants of the neutral pseudoscalar mesons from lattice QCD+QEDWith increasing requirements for greater precision, it becomes essential to describe the effects of isospin breaking induced by both quark masses and electro-magnetic effects. In this work we perform…Z. R. Kordov, R. Horsley, W. Kamleh et al.·Apr 12, 2023SaveLearn
A variational Monte Carlo algorithm for lattice gauge theories with continuous gauge groups: a study of (2+1)-dimensional compact QED with dynamical fermions at finite densityLattice gauge theories coupled to fermionic matter account for many interesting phenomena in both high energy physics and condensed matter physics. Certain regimes, e.g. at finite fermion density,…Julian Bender, Patrick Emonts, J. Ignacio Cirac·Apr 12, 2023SaveLearn
Exploring conformality in lattice N=4 supersymmetric Yang--MillsMaximally supersymmetric Yang--Mills theory (N=4 SYM) is conformal for any value of the coupling. Lattice regularization breaks conformality through the introduction of a non-zero lattice spacing and…David Schaich·Apr 10, 2023SaveLearn
Hadronic light-by-light contribution to the muon anomaly from lattice QCD with infinite volume QED at physical pion massThe hadronic light-by-light scattering contribution to the muon anomalous magnetic moment, (g-2)/2, is computed in the infinite volume QED framework with lattice QCD. We report…Thomas Blum, Norman Christ, Masashi Hayakawa et al.·Apr 10, 2023SaveLearn
Correlation function distributions for O(N) lattice field theories in the disordered phaseNumerical computations in strongly-interacting quantum field theories are often performed using Monte-Carlo sampling methods. A key task in these calculations is to estimate the value of a given…Cagin Yunus, William Detmold·Apr 7, 2023SaveLearn
Determination of crossing-symmetric ππ scattering amplitudes and the quark mass evolution of the σ constrained by lattice QCDLattice QCD spectra can be used to constrain partial-wave scattering amplitudes that, while satisfying unitarity, do not have to respect crossing symmetry and analyticity. This becomes a particular…Arkaitz Rodas, Jozef J. Dudek, Robert G. Edwards·Apr 7, 2023SaveLearn
Isospin 0 and 2 two-pion scattering at physical pion mass using distillation with periodic boundary conditions in lattice QCDThe two pion channel in Lattice QCD has long been a primary testing ground for studying multiparticle scattering in finite volume QCD. With the development of sophisticated techniques such as…Mattia Bruno, Daniel Hoying, Taku Izubuchi et al.·Apr 6, 2023SaveLearn
B → D* vector, axial-vector and tensor form factors for the full q2 range from lattice QCDWe compute the complete set of SM and tensor B(s) D(s)* semileptonic form factors across the full kinematic range of the decay using second generation MILC nf=2+1+1 HISQ…Judd Harrison, Christine T. H. Davies·Apr 6, 2023SaveLearn
Constraining beyond the Standard Model nucleon isovector chargesAt the TeV scale, low-energy precision observations of neutron characteristics provide unique probes of novel physics. Precision studies of neutron decay observables are susceptible to beyond the…R. E. Smail, M. Batelaan, R. Horsley et al.·Apr 6, 2023SaveLearn
Canonical Momenta in Digitized SU(2) Lattice Gauge Theory: Definition and Free TheoryHamiltonian simulations of quantum systems require a finite-dimensional representation of the operators acting on the Hilbert space H. Here we give a prescription for gauge links and canonical…Timo Jakobs, Marco Garofalo, Tobias Hartung et al.·Apr 5, 2023SaveLearn
Locality-constrained autoregressive cum conditional normalizing flow for lattice field theory simulationsNormalizing flow-based sampling methods have been successful in tackling computational challenges traditionally associated with simulating lattice quantum field theories. Further works have…Dinesh P. R.·Apr 4, 2023SaveLearn
Scaling functions of the three-dimensional Z(2), O(2) and O(4) models and their finite size dependence in an external fieldWe analyze scaling functions in the 3-d, Z(2), O(2) and O(4) universality classes and their finite size dependence using Monte Carlo simulations of improved φ4 models. Results for the…Frithjof Karsch, Marius Neumann, Mugdha Sarkar·Apr 4, 2023SaveLearn
Heavy flavor physics from lattice QCDWe review recent progress on heavy flavor physics from lattice QCD.Takashi Kaneko·Apr 4, 2023SaveLearn
Isospin Breaking Effects in the 2-Flavor Schwinger ModelThe automatic fine-tuning of isospin breaking effects by conformal coalescence found by Georgi in the 2-flavor Schwinger model is studied. The analytical results obtained for the bosonic correlators…Nuha Chreim, Christian Hoelbling, Niklas Pielmeier et al.·Apr 4, 2023SaveLearn
Matrix product decomposition for two- and three-flavor Wilson fermions: Benchmark results in the lattice Gross-Neveu model at finite densityWe formulate the path integral of two- and three-flavor Wilson fermion in two dimensions as a multilayer Grassmann tensor network by the matrix product decomposition. Thanks to this new description,…Shinichiro Akiyama·Apr 4, 2023SaveLearn
Sp(2N) Lattice Gauge Theories and Extensions of the Standard Model of Particle PhysicsWe review the current status of the long-term programme of numerical investigation of Sp(2N) gauge theories with and without fermionic matter content. We start by introducing the phenomenological…Ed Bennett, Jack Holligan, Deog Ki Hong et al.·Apr 3, 2023SaveLearn
One-loop matching of CP-odd four-quark operators to the gradient-flow schemeThe translation of experimental limits on the neutron electric dipole moment into constraints on heavy CP-violating physics beyond the Standard Model requires knowledge about non-perturbative…Jona Bühler, Peter Stoffer·Apr 3, 2023SaveLearn
Complex Langevin: Correctness criteria, boundary terms and spectrumThe Complex Langevin (CL) method to simulate `complex probabilities', ideally produces expectation values for the observables that converge to a limit equal to the expectation values obtained with…Erhard Seiler, Dénes Sexty, Ion-Olimpiu Stamatescu·Apr 2, 2023SaveLearn
Fluctuation without dissipation: Microcanonical Langevin Monte CarloStochastic sampling algorithms such as Langevin Monte Carlo are inspired by physical systems in a heat bath. Their equilibrium distribution is the canonical ensemble given by a prescribed target…Jakob Robnik, Uroš Seljak·Mar 31, 2023SaveLearn
Gradient flow, confinement, and magnetic monopole in U(1) lattice gauge theoryIn the gradient flow method of lattice gauge theory, coarse graining is performed so as to reduce the action, and as the coarse graining progresses, the field strength becomes very small. However,…Shinji Ejiri, Yuya Horikoshi·Mar 31, 2023SaveLearn
c-c mixing From Lattice QCDIn heavy quark limit, the lowest-lying charmed baryons with two light quarks can form an SU(3) triplet and sextet. The c in the SU(3) triplet and c' in the sextet have the same JPC…Hang Liu, Liuming Liu, Peng Sun et al.·Mar 31, 2023SaveLearn
Exotic Tetraquark states with two b-quarks and JP=0+ and 1+ Bs states in a nonperturbatively-tuned Lattice NRQCD setupWe use nf=2+1 Wilson-clover gauge-field ensembles from the CLS consortium in a Lattice NRQCD setup to predict the binding energy of a I(JP)=0(1+) udbb tetraquark and a…R. J. Hudspith, D. Mohler·Mar 30, 2023SaveLearn
Eight very excited spectra and one possible axion in SU(3) lattice gauge theoryWe compute the spectra of flux tubes formed between a static quark antiquark pair up to a significant number of excitations and for eight symmetries of the flux tubes, up to u, using pure…Alireza Sharifian, Nuno Cardoso, Pedro Bicudo·Mar 27, 2023SaveLearn