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934
1 The Quenched Approximation in Health and in Sickness ∗
, 1992
"... We present results for physical quantities computed in quenched chiral perturbation theory and compare them with the corresponding unquenched expressions. We also point out an apparent theoretical problem of the quenched approximation. 1. ..."
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We present results for physical quantities computed in quenched chiral perturbation theory and compare them with the corresponding unquenched expressions. We also point out an apparent theoretical problem of the quenched approximation. 1.
The κ Meson in Quenched Approximation
"... If the sigma meson exists, it is natural to consider the κ meson as member of the nonet scalar states chiral SU(3) × SU(3) symmetry. Recently, the κ with I=1/2 is reported with mass mκ ∼ 800 MeV [1]. It is very important to investigate theκmeson by lattice QCD in order to establish the mass spectro ..."
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spectroscopy of the scalar mesons. Because lattice QCD provides a first principal approach of hadron physics and allows us to study nonperturbative aspects of quarkgluon dynamics. We perform a quenched QCD calculation using the Wilson fermion, with the plaquette gauge action, on a relatively large lattice, i
interactions and its quenched approximation
, 1998
"... The generating functional for hadronic weak ..."
MESONS IN THE QUENCHED APPROXIMATION AT LOW TEMPERATURE
, 1993
"... We use an effective low energy field theory to describe the coupling between glueballs and mesons as an analog of the quenched approximation in lattice QCD. This allows us to study the temperature dependence of mesonic screening masses at temperatures below the deconfinement phase transition. ..."
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We use an effective low energy field theory to describe the coupling between glueballs and mesons as an analog of the quenched approximation in lattice QCD. This allows us to study the temperature dependence of mesonic screening masses at temperatures below the deconfinement phase transition.
Chiral perturbation theory for the quenched approximation
"... ABSTRACT: We describe a technique for constructing the effective chiral theory for quenched QCD. The effective theory which results is a lagrangian one, with a graded symmetry group which mixes Goldstone bosons and fermions, and with a definite (though slightly peculiar) set of Feynman rules. The st ..."
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Cited by 19 (2 self)
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. Problems for future study are described. I. Introduction and Motivation The quenched approximation1 to QCD, in which virtual quark loops are neglected, is a necessary evil in lattice QCD simulations and will be with us for the foreseeable future. Even with the proposed QCD Teraflop Machine, 2 the quenched
1 Problems with the Quenched Approximation in the Chiral Limit a ∗
, 1992
"... In the quenched approximation, loops of the light singlet meson (the η ′ ) give rise to a type of chiral logarithm absent in full QCD. These logarithms are singular in the chiral limit [1–3], throwing doubt upon the utility of the quenched approximation. In previous work, I summed a class of diagram ..."
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In the quenched approximation, loops of the light singlet meson (the η ′ ) give rise to a type of chiral logarithm absent in full QCD. These logarithms are singular in the chiral limit [1–3], throwing doubt upon the utility of the quenched approximation. In previous work, I summed a class
The generating functional for hadronic weak interactions and its quenched approximation”, preprint BUTP98/18
"... its quenched approximation ..."
Quenched Approximation Artifacts: A Detailed Study
 in TwoDimensional QED
"... The spectral properties of the WilsonDirac operator in 2dimensional QED responsible for the appearance of exceptional configurations in quenched simulations are studied in detail. The mass singularity structure of the quenched functional integral is shown to be extremely compicated, with multiple ..."
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Cited by 1 (0 self)
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approximation is applied to the study of meson correlators, and the results compared with both naive quenched and full dynamical calculations of the same quantity. 1 1
Quenched Approximation Artifacts: A study in 2dimensional QED
, 1997
"... The spectral properties of the WilsonDirac operator in 2dimensional QED responsible for the appearance of exceptional configurations in quenched simulations are studied in detail. The mass singularity structure of the quenched functional integral is shown to be extremely compicated, with multiple ..."
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approximation is applied to the study of meson correlators, and the results compared with both naive quenched and full dynamical calculations of the same quantity. 1 1
Results 1  10
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934