Semileptonic six fermion processes at future e+e- colliders:: signal and irreducible background for top and WWZ physics

被引：21
作者：
Accomando, E [2 ]
Ballestrero, A
Pizzio, M
机构：
[1] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy
[2] Ist Nazl Fis Nucl, I-10125 Turin, Italy
来源：
NUCLEAR PHYSICS B | 1998年 / 512卷 / 1-2期
关键词：
top quark; gauge couplings; helicity amplitude;
D O I：
10.1016/S0550-3213(97)00745-1
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 compute several total and differential cross sections relevant to top and WWZ physics at future e(+)e(-) colliders, taking into account the full set of Feynman diagrams for six fermion final states. We also include in our calculations initial state radiation and beamstrahlung effects, and the most important QCD corrections in an approximate (naive) form. We compare such a complete approach with the production x decay approximation and we suggest that in many physical studies the former is needed. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：19 / 41
页数：23
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