Results 11 to 20 of about 158,790 (256)
QCD Thermodynamics on lattice [PDF]
Nuclear Physics B - Proceedings Supplements, 2005 Talk given on Lattice 2004 (plenary) Fermilab, June 21-26 ...
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International Journal of Modern Physics A, 2005 In the past year, we calculated with lattice QCD three quantities that were unknown or poorly known. They are the q2 dependence of the form factor in semileptonic D → Klν decay, the decay constant of the D meson, and the mass of the Bc meson. In this talk, we summarize these calculations, with emphasis on their (subsequent) confirmation by experiments.
Alan Gray +28 more
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QCD ON A TRANSVERSE LATTICE [PDF]
Particle Physics Phenomenology, 2001 We present results from a transverse lattice study of low lying mesons. Special emphasis is put on the issue of Lorentz invariant energy-momentum dispersion relations for these mesons. The light-cone wave function for the $ $ obtained in this framework is very close to its asymptotic shape.
Matthias Burkardt, Sudip K. Seal
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Overview of external electromagnetism and rotation in lattice QCD [PDF]
Eur. Phys. J. A 57, 211 (2021), 2021 This is an introductory review of lattice QCD with external fields. The study of external magnetic fields is one of the greatest achievements in modern lattice QCD. Large-scale simulations and detailed analyses have revealed intriguing properties of QCD in the magnetic fields.
arxiv +1 more source
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 ...
Maarten Golterman, Yigal Shamir
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European Physical Journal C: Particles and Fields, 2023 We perform an analysis of Lattice QCD data on baryon octet and decuplet masses based on the chiral SU(3) Lagrangian. Low-energy constants (LEC) are adjusted to describe baryon masses from a large set of CLS ensembles, where finite-box and discretization ...
Matthias F. M. Lutz +2 more
doaj +1 more source
Dispersive determination of the HVP contribution to the muon g − 2 [PDF]
EPJ Web of Conferences, 2023 The determination of hadronic vacuum polarization (HVP) from e+e− → hadrons cross-section data, in the energy region relevant for the anomalous magnetic moment of the muon, has recently been challenged by lattice-QCD calculations, especially for the ...
Hoferichter Martin
doaj +1 more source
Computing the magnetic field response of the proton [PDF]
EPJ Web of Conferences, 2020 Background field methods offer an approach through which fundamental non-perturbative hadronic properties can be studied. Lattice QCD is the only ab initio method with which Quantum Chromodynamics can be studied at low energies; it involves numerically ...
Bignell Ryan +2 more
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Nuclear Physics A, 2009 8 pages, 6 figures, A plenary talk given at The International Conference on Particle And Nuclei (PANIC08), Eilat, Israel, November 9-14 ...
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Multigrid multilevel Monte Carlo for a lattice with a displacement
PAMM, Volume 23, Issue 3, November 2023., 2023 Abstract The Hutchinson method can be used to estimate the trace of a function of a matrix A, that is, , stochastically. With the variance of the Hutchinson estimator decreasing as , techniques to reduce the variance of this estimator become necessary due to the high accuracy required by some calculations in scientific computing.
Gustavo Ramirez‐Hidalgo
wiley +1 more source