Extra dimensions prefer large $\tan \beta$

Abstract

Assuming that the recent result obtained from the Monte Carlo simulations on the nonperturbative existence of the pure SU(2) Yang-Mills theory in five dimensions can be applied to a more general class of higher-dimensional gauge theories, we derive the conditions imposed by the nontriviality requirement on the theories. We find that the supersymmetric grand unified theories with extra dimensions prefer a large value ($\gsim 2$) of $\tan \beta$ of the minimal supersymmetric standard model, in accord with today's possible observation of the Higgs particle at LEP2.

26 pages, TeX, 7 figures

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• Softening of SUSY flavor problem from asymptotically free bulk interactions