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arXiv 1002.0446hep-lat
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Wilson费米子/Symanzik改进规范action的高圈重整化常数

High loop renormalization constants for Wilson fermions/Symanzik improved gauge action

M. Brambilla, F. Di Renzo, L. Scorzato

摘要:

本文介绍了我们对Wilson费米子和Symanzik改进规范作用量的夸克双线性重整化常数的计算现状。计算采用数值随机扰动理论。体积范围从10^4到32^4。重正化条件是RI '-RI'在几个动量的测量,无关的影响考虑到通过超三次对称泰勒展开。有限体积效应的评估重复计算在不同的晶格尺寸。用这种方法,我们可以将我们的结果外推到无限体积的连续极限。

英文摘要:

We present the current status of our computation of quark bilinear renormalization constants for Wilson fermions and Symanzik improved gauge action. Computations are performed in Numerical Stochastic Perturbation Theory. Volumes range from 10^4 to 32^4. Renormalization conditions are those of the RI'-MOM scheme, imposed at different values of the physical scale. Having measurements available at several momenta, irrelevant effects are taken into account by means of hypercubic symmetric Taylor expansions. Finite volumes effects are assessed repeating the computations at different lattice sizes. In this way we can extrapolate our results to the continuum limit, in infinite volume.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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