Perturbative renormalization of improved lattice operators

被引:17
作者
Capitani, S
Gockeler, M
Horsley, R
Perlt, H
Rakow, P
Schierholz, G
Schiller, A
机构
[1] DESY, Theory Grp, D-22607 Hamburg, Germany
[2] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany
[3] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany
[4] Univ Leipzig, Inst Theoret Phys, D-04109 Leipzig, Germany
[5] DESY, Ifh Zeuthen, D-15738 Zeuthen, Germany
关键词
D O I
10.1016/S0920-5632(97)00926-2
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We derive bases of improved operators for all bilinear quark currents up to spin two (including the operators measuring the first moment of DIS Structure Functions), and compute their one-loop renormalization constants for arbitrary coefficients of the improvement terms. We have thus control over O(a) corrections, and for a suitable choice of improvement coefficients we are only left with errors of O(a(2)).
引用
收藏
页码:874 / 876
页数:3
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