An improved lattice fermion action from block-diagonalisation
نویسندگان
چکیده
منابع مشابه
Some Predictions for an Improved Fermion Action on the Lattice
We propose an improved fermion action on the lattice by adding a next nearest neightbor interaction term to the Wilson action. The proposed action is expected to approach the continuum limit more rapidly. Using the improved action, the predictions for the critical value of the hopping parameter at weak and strong coupling are given. The relationship between quark masses on the lattice and in th...
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The problem of formulating the chiral fermion field on space-time lattices has been discussed from the viewpoint of funtional integrals [1]. I argued that the functional integral measure provided by any single lattice ( hypercubical lattice or random lattice ) is not sufficent to yield fermionic functional integrals to agree with the continuum field theory. My proposal of using an ensemble of r...
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We have investigated QCD with two flavors of degenerate fermions using a Symanzikimproved lattice action for both the gauge and fermion actions. Our study focuses on the deconfinement transition on an Nt = 4 lattice. Having located the thermal transition, we performed zero temperature simulations nearby in order to compute hadronic masses and the static quark potential. We find that the present...
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Calculations of hadron masses are done in quenched approximation using gauge field and fermion actions which are both corrected for discretization errors to O(a) at the classical level and which contain tadpole improvement factors. The fermion action has both nearest-neighbour and next-nearestneighbour couplings in the kinetic and Wilson terms. Simulations done at lattice spacings of 0.3 and 0....
متن کاملThe Axial Vector Current Anomaly and the Meson Decay Constants for the Improved Lattice Fermion Action
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1989
ISSN: 0550-3213
DOI: 10.1016/0550-3213(89)90112-0