Non-perturbative renormalization of quark bilinears

被引：46
作者：
Gimenez, V
Giusti, L
Rapuano, F
Talevi, M
机构：
[1] Univ Valencia, Dept Fis Teor, E-46100 Burjassot, Spain
[2] Univ Valencia, IFIC, E-46100 Burjassot, Spain
[3] Scuola Normale Super Pisa, I-56100 Pisa, Italy
[4] Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy
[5] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[6] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy
[7] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland
来源：
NUCLEAR PHYSICS B | 1998年 / 531卷 / 1-3期
关键词：
D O I：
10.1016/S0550-3213(98)00582-3
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 compute non-perturbatively the renormalization constants of quark bilinears on the lattice in the quenched approximation at three values of the coupling beta = 6/g(0)(2) = 6.0, 6.2, 6.4 using both the Wilson and the tree-level improved SW-Clover fermion action. We perform a Renormalization Group analysis at the next-to-next-to-leading order and compute Renormalization Group invariant values for the constants. The results are applied to obtain a fully non-perturbative estimate of the vector and pseudoscalar decay constants. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：429 / 445
页数：17
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