EXTENDED GAUGE-MODELS AND PRECISION ELECTROWEAK DATA

被引：37

作者：

ALTARELLI, G

CASALBUONI, R

DECURTIS, S

DIBARTOLOMEO, N

GATTO, R

FERUGLIO, F

机构：

[1] UNIV FLORENCE,DEPT FIS,I-50121 FLORENCE,ITALY

[2] INFN,SEZ FIRENZE,FLORENCE,ITALY

[3] UNIV GENEVA,DEPT PHYS THEOR,CH-1211 GENEVA 4,SWITZERLAND

[4] UNIV PADUA,DEPT FIS,I-35100 PADUA,ITALY

[5] INFN,SEZ PADOVA,PADUA,ITALY

来源：

PHYSICS LETTERS B | 1993年 / 318卷 / 01期

关键词：

D O I：

10.1016/0370-2693(93)91797-Q

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the implications of precision electroweak data on extended gauge models. The cases of extended gauge models based on E6 (for arbitrary orientation in group space of the new U(1) generator) and of left-right models are discussed in detail. Fits of the data in terms of these extended gauge models are considered and limits on the mixing parameters are obtained. The relation with the epsilon parameter approach is discussed. We also consider a number of more particular models with specified Higgs structure, where limits on m(Z') can also be derived.

引用

页码：139 / 147

页数：9

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