A GLOBAL FIT TO EXTENDED OBLIQUE PARAMETERS

被引：94

作者：

BURGESS, CP

GODFREY, S

KONIG, H

LONDON, D

MAKSYMYK, I

机构：

[1] UNIV QUEBEC,DEPT PHYS,MONTREAL H3C 3P8,QUEBEC,CANADA

[2] CARLETON UNIV,OTTAWA CARLETON INST PHYS,DEPT PHYS,OTTAWA K1S 5B6,ONTARIO,CANADA

[3] UNIV MONTREAL,PHYS NUCL LAB,MONTREAL H3C 3J7,QUEBEC,CANADA

[4] MCGILL UNIV,DEPT PHYS,MONTREAL H3A 2T8,QUEBEC,CANADA

来源：

PHYSICS LETTERS B | 1994年 / 326卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)91322-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The STU formalism of Peskin and Takeuchi is an elegant method for encoding the measurable effects of new physics which couples to light fermions dominantly through its effects on electroweak boson propagation. However, this formalism cannot handle the case where the scale of new physics is not much larger than the weak scale. In this case three new parameters (V, W and X) are required. A global fit to precision electroweak data for these six parameters is performed. Our results differ from what is found for just STU. In particular we find that the preference for S < 0 is no longer statistically significant.

引用

页码：276 / 281

页数：6

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