[SU(5)]^3 SUSY unification

Abstract

In the present paper we demonstrate the possibility of the [SUSY(5)]^3 SUSY unification at the energy scale ${\mu }_{GUT}\approx 10^{18.3}GeV$ with the value of GUT inverse finestructure constant ${\alpha }_{GUT}^{-1}\approx 34.4$, which is very close to its critical value ${\alpha }_{5,crit}^{-1}\approx 34.0$, existing at the Planck scale.

15 pages, 5 figures; submitted to Festschrift dedicated to the 60th jubilee of Holger Bech Nielsen