VIABILITY OF PERTURBATIVE RENORMALIZATION FACTORS IN LATTICE QCD CALCULATION OF THE K(0)-(K)OVER-BAR-0 MIXING MATRIX

被引：49

作者：

ISHIZUKA, N

FUKUGITA, M

MINO, H

OKAWA, M

SHIZAWA, Y

UKAWA, A

机构：

[1] NATL LAB HIGH ENERGY PHYS,OHO,IBARAKI 305,JAPAN

[2] KYOTO UNIV,YUKAWA INST THEORET PHYS,KYOTO 606,JAPAN

[3] YAMANASHI UNIV,FAC ENGN,KOFU 540,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.71.24

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Validity of perturbative estimation of renormalization factors in weak matrix element calculations in lattice QCD is examined for the K0-K0BAR mixing matrix by comparing results for gauge invariant and noninvariant operators. A large disagreement found for uncorrected results for the two cases is shown to be removed by the one-loop renormalization factor. This indicates that the large scaling violation in the mixing matrix previously reported is not due to an artifact of prescription of lattice calculations. Our estimate of B(K) for the continuum in quenched QCD is 0.61(13)-0.83(7).

引用

页码：24 / 26

页数：3

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