Unified Theory of Fundamental Interactions

Abstract

Based on local gauge invariance, four different kinds of fundamental interactions in Nature are unified in a theory which has $SU(3{)}_c\otimes SU(2{)}_L\otimes U(1){\otimes }_{s}GravitationalGaugeGroup$ gauge symmetry. In this approach, gravitational field, like electromagnetic field, intermediate gauge field and gluon field, is represented by gauge potential. Four kinds of fundamental interactions are formulated in the similar manner, and therefore can be unified in a direct or semi-direct product group. The model discussed in this paper can be regarded as extension of the standard model to gravitational interactions. The model discussed in this paper is a renormalizable quantum model, so it can be used to study quantum effects of gravitational interactions.

23 pages, no figure

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