Multi-leg calculations with the GRACE/1-LOOP system -: Toward radiative corrections to e+e- → μ-(μ)over-baru(d)over-bar

被引：12

作者：

Boudjema, F

Fujimoto, J

Ishikawa, T

Kaneko, T

Kato, K

Kurihara, Y

Shimizu, Y

机构：

[1] LAPTH, F-74941 Annecy Le Vieux, France

[2] KEK, Tsukuba, Ibaraki 3050801, Japan

[3] Kogakuin Univ, Shinjuku Ku, Tokyo 1638677, Japan

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2004年 / 135卷

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/j.nuclphysbps.2004.09.016

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 performed the calculation of the full O(alpha) corrections to e(+)e(-) --> (mu) over bar(v) over bar(u) over bar(d) over bar with the help of the GRACE/1-LOOP system. We discuss how a finite decay width introduces a serious gauge invariance breaking, particularly for infrared 5-point functions. This is related to the way the reduction of those functions is performed and to the treatment of the width in the reduction.

引用

收藏

页码：323 / 327

页数：5

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