O(αsa) matching coefficients for axial vector current and ΔB=2 operator

被引：16

作者：

Ishikawa, KI ^{[1
]}

Onogi, T

Yamada, N

机构：

[1] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[2] Hiroshima Univ, Dept Phys, Higashihiroshima, Hiroshima 7398526, Japan

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2000年 / 83-4卷

关键词：

D O I：

10.1016/S0920-5632(00)00259-0

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 present a calculation of the perturbative matching coefficients including mixing with higher dimensional operators for the temporal component of the heavy-light axial current, A(4), and the Delta B = 2 operator, O-S. For A(4)(static, NRQCD), calculations with various RG-improved gauge actions are peformed. Matching coefficients with NRQCD and heavy-clover actions are also compared.

引用

页码：301 / 303

页数：3

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