Results 11 to 20 of about 79,203 (258)
QCD Thermodynamics on the Lattice [PDF]
Advances in High Energy Physics, 2013 A remarkable progress has been made in the understanding of the hot and dense QCD matter using lattice gauge theory. The issues which are very well understood as well as those which require both conceptual and algorithmic advances are highlighted.
Sayantan Sharma
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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 ...
Paul B. Mackenzie +4 more
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On the role of isospin violation in the pion–nucleon σ-term
Physics Letters B, 2023 In recent years, a persistent tension between phenomenological and lattice QCD determinations of the pion–nucleon σ-term σπN has developed. In particular, lattice-QCD calculations have matured to the point that isospin-violating effects need to be ...
Martin Hoferichter +3 more
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QCD Phases in Lattice QCD [PDF]
International Journal of Modern Physics A, 2006 I review the recent status of lattice QCD calculations at non-zero density.
Sinya Aoki, Sinya Aoki
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Excited bottomonia in quark-gluon plasma from lattice QCD
Physics Letters B, 2020 We present the first lattice QCD study of up to 3S and 2P bottomonia at non-zero temperatures. Correlation functions of bottomonia were computed using novel bottomonium operators and a variational technique, within the lattice non-relativistic QCD ...
Rasmus Larsen +3 more
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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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Aspects of chiral transition in a Hadron Resonance Gas model [PDF]
EPJ Web of Conferences, 2022 We study the chiral condensate for 2 + 1 flavor QCD with physical quarks within a non-interacting Hadron Resonance Gas (HRG) model. By including the latest information on the mass variation of the hadrons concerning the light quark mass, from lattice QCD
Biswas Deeptak +2 more
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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
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