Results 21 to 30 of about 19,287 (93)
Chiral Effective Theory Methods and their Application to the Structure of Hadrons from Lattice QCD
, 2016 For many years chiral effective theory (ChEFT) has enabled and supported lattice QCD calculations of hadron observables by allowing systematic effects from unphysical lattice parameters to be controlled. In the modern era of precision lattice simulations
Shanahan, P. E.
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Theoretical progress in describing the B-meson lifetimes [PDF]
, 2001 The present status of the theoretical estimates of the difference between the widths of the neutral Bs-mesons and of the B-meson lifetime ratios is reviewed. In particular, the lattice results for the matrix elements of the relevant (delta B=2)-operators
Becirevic, Damir
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QCD equation of state with 2+1 flavors of improved staggered quarks
, 2007 We report results for the interaction measure, pressure and energy density for nonzero temperature QCD with 2+1 flavors of improved staggered quarks. In our simulations we use a Symanzik improved gauge action and the Asqtad $O(a^2)$ improved staggered ...
Bernard, C. +8 more
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Non-perturbative improvement of quark mass renormalization in two-flavour lattice QCD
, 2010 We non-perturbatively determine the renormalization constant and the improvement coefficients relating the renormalized current and subtracted quark mass in O(a) improved two-flavour lattice QCD.
Fritzsch, Patrick +2 more
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SU(N) gauge theories in the presence of a topological term [PDF]
, 2007 We review recent results on the theta dependence of the ground-state energy and spectrum of four-dimensional SU(N) gauge theories, where theta is the coefficient of the CP-violating topological term F-Fdual in the Lagrangian.
Del Debbio, Luigi +2 more
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Charmonium mass splittings at the physical point [PDF]
, 2012 We present results from an ongoing study of mass splittings of the lowest lying states in the charmonium system. We use clover valence charm quarks in the Fermilab interpretation, an improved staggered (asqtad) action for sea quarks, and the one-loop ...
DeTar, Carleton +5 more
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Quenched hadron spectroscopy with improved staggered quark action [PDF]
, 1997 We investigate light hadron spectroscopy with an improved quenched staggered quark action. We compare the results obtained with an improved gauge plus an improved quark action, an improved gauge plus standard quark action, and the standard gauge plus ...
A. Peikert +41 more
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Strong dynamics, composite Higgs and the conformal window
, 2016 We review recent progress in the lattice investigations of near-conformal non-abelian gauge theories relevant for dynamical symmetry breaking and model building of composite Higgs models.
Nogradi, Daniel, Patella, Agostino
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Heavy Quarks and Lattice QCD [PDF]
, 2003 This paper is a review of heavy quarks in lattice gauge theory, focusing on methodology. It includes a status report on some of the calculations that are relevant to heavy-quark spectroscopy and to flavor physics.Comment: Lattice2003(plenary), 14 pages ...
Kronfeld, Andreas S.
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Lattice quantum gravity with scalar fields
, 2018 We consider the four-dimensional Euclidean dynamical triangulations lattice model of quantum gravity based on triangulations of $S^{4}$. We couple it minimally to a scalar field in the quenched approximation.
Jha, Raghav G. +2 more
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