Perturbative determination of c(SW) for plaquette and Symanzik gauge action and stout link clover fermions
Perturbative determination of c(SW) for plaquette and Symanzik gauge action and stout link clover fermions
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微扰测定血小板和 Symanzik 规范作用以及 Stout Link 三叶草费米子的 c(SW)
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
A. Schiller
中科院分区:
文献类型:
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作者:
R. Horsley;H. Perlt;P. Rakow;G. Schierholz;A. Schiller
Using plaquette and Symanzik improved gauge action and stout link clover fermions we determine the improvement coefficient c{sub SW} in one-loop lattice perturbation theory from the off-shell quark-quark-gluon three-point function. In addition, we compute the coefficients needed for the most general form of quark field improvement and present the one-loop result for the critical hopping parameter {kappa}{sub c}. We discuss mean field improvement for c{sub SW} and {kappa}{sub c} and the choice of the mean field coupling for the actions we have considered.