CUSTODIAL SU(2) VIOLATION AND THE ORIGIN OF FERMION MASSES

被引：4
|
作者：
BLUMHOFER, A
LINDNER, M
机构：
[1] Institut für Theoretische Physik der Universität Heidelberg, 69120 Heidelberg
来源：
NUCLEAR PHYSICS B | 1993年 / 407卷 / 01期
关键词：
D O I：
10.1016/0550-3213(93)90278-W
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：
Custodial SU(2) breaking due to dynamical fermion masses is studied in a rather general context and it is shown how some well-known limiting cases are correctly described. The type of ''gap equation'' which can systematically lead to extra negative contributions to the so-called rho-parameter is emphasized. Furthermore, general model independent features are discussed, and it is shown how electro-weak precision measurements can be sensitive to the fermion content and/or dynamical features of a given theory.
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页码：173 / 190
页数：18
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