Results 51 to 60 of about 825,879 (300)
Localization in lattice QCD [PDF]
Physical Review D, 2003 In this paper, we examine the phase diagram of quenched QCD with two flavors of Wilson fermions, proposing the following microscopic picture. The super-critical regions inside and outside the Aoki phase are characterized by the existence of a density of near-zero modes of the (hermitian) Wilson-Dirac operator, and thus by a non-vanishing pion ...
Golterman, Maarten, Shamir, Yigal
openaire +2 more sources
Three-body unitarity versus finite-volume π+π+π+ spectrum from lattice QCD [PDF]
Physical Review D, 2019 Strong three-body interactions above threshold govern the dynamics of many exotics and conventional excited mesons and baryons. Three-body finite-volume energies calculated from lattice QCD promise an ab-initio understanding of these systems.
M. Mai +3 more
semanticscholar +1 more source
The effect of sea quarks on the mass of the charm quark from Lattice QCD [PDF]
, 2005 We compute the mass of the charm quark using both quenched and dynamical lattice QCD calculations. We examine the effects of mass dependent lattice artifacts by comparing two different formalisms for the heavy quarks.
Dougall, A +3 more
core +2 more sources
Nuclear Physics B - Proceedings Supplements, 1995 We show that the perturbatively-improved gluon action for QCD, once it is tadpole-improved, gives accurate results even with lattice spacings as large as 0.4~fm. {\em No\/} tuning of the couplings is required. Using this action and lattice spacing, we obtain a static potential that is rotationally invariant to within a few percent, the spin-averaged ...
Alford, M. +4 more
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Odd-spin glueballs, AdS/QCD and information entropy
Physics Letters B, 2020 Odd-spin glueballs in the dynamical AdS/QCD model are scrutinized, in the paradigm of the configurational entropy (CE). Configurational-entropic Regge trajectories, that relate the CE underlying odd-spin glueballs to their mass spectra and spin, are then
D. Marinho Rodrigues, R. da Rocha
doaj +1 more source
Vacuum correlators at short distances from lattice QCD
Journal of High Energy Physics, 2021 Non-perturbatively computing the hadronic vacuum polarization at large photon virtualities and making contact with perturbation theory enables a precision determination of the electromagnetic coupling at the Z pole, which enters global electroweak fits ...
Marco Cè +4 more
doaj +1 more source
Heavy-hadron interactions from Lattice QCD
EPJ Web of Conferences, 2018 I review recent progress in heavy hadron spectroscopy and from ab-initio Lattice QCD calculations.After motivating lattice calculations for heavy-hadrons by contrasting recent LHCb results charmed and doubly-charmed baryons with lattice predictions ...
Mohler Daniel
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Light-Cone Parton Distribution Functions from Lattice QCD. [PDF]
Physical Review Letters, 2018 We extract parton distribution functions (PDFs) of the nucleon from lattice QCD using an ensemble of gauge field configurations simulated with light quark masses fixed to their physical values.
C. Alexandrou +5 more
semanticscholar +1 more source
Charged multihadron systems in lattice QCD+QED [PDF]
Physical Review D, 2020 Systems with the quantum numbers of up to twelve charged and neutral pseudoscalar mesons, as well as one-, two-, and three-nucleon systems, are studied using dynamical lattice quantum chromodynamics and quantum electrodynamics (QCD+QED) calculations and ...
S. Beane +15 more
semanticscholar +1 more source
Lattice QCD with Ginsparg-Wilson fermions [PDF]
, 1999 Lattice QCD using fermions whose Dirac operator obeys the Ginsparg-Wilson relation, is perhaps the best known formulation of QCD with a finite cutoff. It reproduces all the low energy QCD phenomenology associated with chiral symmetry at finite lattice ...
B. Kogut +39 more
core +2 more sources