A GENERAL-METHOD FOR NONPERTURBATIVE RENORMALIZATION OF LATTICE OPERATORS

被引：617

作者：

MARTINELLI, G

PITTORI, C

SACHRAJDA, CT

TESTA, M

VLADIKAS, A

机构：

[1] IST NAZL FIS NUCL,SEZ ROMA,I-00185 ROME,ITALY

[2] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

[3] UNIV PARIS 11,CTR ORSAY,LPTHE,F-91405 ORSAY,FRANCE

[4] UNIV SOUTHAMPTON,DEPT PHYS,SOUTHAMPTON SO17 1BJ,HANTS,ENGLAND

[5] UNIV ROMA TOR VERGATA,DIPARTIMENTO FIS,I-00133 ROME,ITALY

[6] IST NAZL FIS NUCL,SEZ ROMA 2,I-00133 ROME,ITALY

来源：

NUCLEAR PHYSICS B | 1995年 / 445卷 / 01期

关键词：

D O I：

10.1016/0550-3213(95)00126-D

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 propose a non-perturbative method for computing the renormalization constants of generic composite operators. This method is intended to reduce some systematic errors, which are present when one tries to obtain physical predictions from the matrix elements of lattice operators. We also present the results of a calculation of the renormalization constants of several two-fermion operators, obtained, with our method, by numerical simulation of QCD, on a 16(3) x 32 lattice, at beta = 6.0. The results of this simulation are encouraging, and further applications to four-fermion operators and to the heavy quark effective theory are proposed.

引用

页码：81 / 105

页数：25

共 46 条

[1] QCD NON-LEADING CORRECTIONS TO WEAK DECAYS AS AN APPLICATION OF REGULARIZATION BY DIMENSIONAL REDUCTION [J].