RULING OUT LOW-ENERGY LEFT RIGHT SYMMETRY IN UNIFIED THEORIES

被引：17

作者：

BRAHMACHARI, B

SARKAR, U

SRIDHAR, K

机构：

[1] Theory Group, Physical Research Laboratory, Ahmedabad

来源：

PHYSICS LETTERS B | 1992年 / 297卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)91077-M

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that the stringent bounds placed on sin2theta(w) from a recent analysis of measurements at LEP rule out any possibility of the survival of left-right symmetry at low energies in grand unified theories. Independent of the grand unified group (or the partial unified group) that we start with and the details of the breaking chains, the lowest mass scale, M(R), to which left-right symmetry survives is almost-equal-to 10(9)-10(10) GeV. This scale is driven up even higher with the inclusion of the Higgs contribution to the beta functions, and also in the supersymmetric versions of these theories.

引用

页码：105 / 110

页数：6

共 24 条

[1] QUARK-LEPTON SYMMETRY AND MASS SCALES IN AN E6 UNIFIED GAUGE MODEL [J].