Two-loop electroweak corrections at high energies

被引：4
|
作者：
Denner, A
Melles, M
Pozzorini, S
机构：
[1] Univ Karlsruhe, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany
[2] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2003年 / 116卷
关键词：
D O I：
10.1016/S0920-5632(03)80136-6
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 discuss two-loop leading and angular-dependent next-to-leading logarithmic electroweak virtual corrections to arbitrary processes at energies above the electroweak scale. The relevant Feynman diagrams involving soft-collinear gauge bosons gamma, Z, W+/- have been evaluated in eikonal approximation. We present results obtained from the analytic evaluation of massive loop integrals. To isolate mass singularities we used the Sudakov method and alternatively the sector decomposition method in the Feynman-parameter representation.
引用
收藏
页码：18 / 22
页数：5
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