Non-Abelian Flat Directions in a Minimal Superstring Standard Model
G. B. Cleaver, A. E. Faraggi, D. V. Nanopoulos, Joel W. Walker
Abstract
Recently, by studying exact flat directions of non-Abelian singlet fields, we demonstrated the existence of free fermionic heterotic-string models in which the SU(3)C x SU(2)L x U(1)Y-charged matter spectrum, just below the string scale, consists solely of the MSSM spectrum. In this paper we generalize the analysis to include VEVs of non-Abelian fields. We find several, MSSM-producing, exact non-Abelian flat directions, which are the first such examples in the literature. We examine the possibility that hidden sector condensates lift the flat directions.
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