Two-loop electroweak logarithms in four-fermion processes at high energy

被引：61

作者：

Jantzen, B

Kühn, JH

Penin, AA ^{[1
]}

Smirnov, VA

机构：

[1] Univ Karlsruhe, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany

[2] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[3] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[4] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119992, Russia

[5] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany

来源：

NUCLEAR PHYSICS B | 2005年 / 731卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1016/j.nuclphysb.2005.10.010

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 the complete analytical result for the two-loop logarithmically enhanced contributions to the high energy asymptotic behavior of the vector form factor and the four-fermion cross section in a spontaneously broken SU(2) gauge model. On the basis of this result we derive the dominant two-loop electroweak corrections to the neutral current four-fermion processes at high energies. Previously neglected effects of the gauge boson mass difference are included through the next-to-next-to-leading logarithmic approximation. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：188 / 212

页数：25

共 61 条

[1] RELATING HARD QCD PROCESSES THROUGH UNIVERSALITY OF MASS SINGULARITIES (II) [J].