Low energy physics and left-right symmetry: bounds on the model parameters

被引：34

作者：

Czakon, M

Gluza, J

Zralek, M

机构：

[1] Silesian Univ, Inst Phys, Dept Field Theory & Particle Phys, PL-40007 Katowice, Poland

[2] DESY, D-15738 Zeuthen, Germany

来源：

PHYSICS LETTERS B | 1999年 / 458卷 / 2-3期

关键词：

D O I：

10.1016/S0370-2693(99)00567-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In any gauge model with spontaneous symmetry breakdown the gauge boson masses and their mixings are not independent quantities. They are interconnected through the vacuum expectation values (VEVs) of the Higgs sector. We discuss the low-energy experiments, namely electron-hadron, neutrino-hadron and neutrino-electron processes in the frame of the manifest left-right symmetric model and show the impact of these dependencies on the possible heavy gauge boson masses and mixings. At 90% C.L., we obtain M-Z2 greater than or equal to 1475 GeV for phenomenologically favorable models, without W-L - W-R mixing and M-Z2 greater than or equal to 1205 GeV in the other extreme case when a maximal mixing is possible. If we consider the left-right symmetric model parameters without any constraints from the Higgs sector these limits get down to 410 GeV. Bounds on the Z(2) mixing angle as well as the W-2 mass and its mixing angle are also given. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：355 / 360

页数：6

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