Coupling Constant Unification and LEP Data

1993/02/15 by Hang Bae Kim, Jihn E. Kim
Physics and Astronomy · #hep-ph

paper · pdf

published as J.Korean Phys.Soc. 27 (1994) 129-133 · 11 pages plus 4 figures, Figures can be sent by FAX upon request, Latex

arxiv created 1993/02/15 · arxiv updated 2009/11/30

Abstract

The recent LEP data for gauge coupling constants constrain many grand unified models. In this paper, we study several possibilities for unification of gauge coupling constants. Without an intermediate mass scale, the minimal supersymmetric standard model is the only possibility. For one intermediate mass scale, it is possible to have many routes toward grand unification: SO(10)→ SU(3)_c× SU(2)_L× SU(2)_R× U(1) , SU(7), SU(8), etc. We present also simple relations for the possibility of unification.

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