A HEAVY TOP-QUARK AND THE ZB(B)OVER-BAR VERTEX IN NON-COMMUTING EXTENDED TECHNICOLOR

被引：126

作者：

CHIVUKULA, RS

SIMMONS, EH

TERNING, J

机构：

[1] Department of Physics, Boston University, Boston, MA 02215

来源：

PHYSICS LETTERS B | 1994年 / 331卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(94)91068-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore corrections to electroweak parameters in the context of Extended Technicolor (ETC) models in which the ETC gauge-boson which generates the top-quark mass carries weak SU (2) charge. For m(t) approximately 150 GeV there exist potentially large corrections to the Z decay width to b-quarks. Interestingly, in contrast to the situation in ETC models where the gauge-boson which generates the top-quark mass is a weak SU (2) singlet, the corrections may increase the Z --> bbBAR branching ratio.

引用

页码：383 / 389

页数：7

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