A kind of prediction from superstring model building

Details A kind of prediction from superstring model building A kind of prediction from superstring model building

2001-10-30

arxiv.org/abs/hep-ph/0110381v2

JHEP 0112:015,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

Phenomenological discussion expanded, references added, Latex, 25 pages, 3 figures

Scientific paper

10.1088/1126-6708/2001/12/015

Assuming that the Standard Model of particle physics arises from the $E_8\times E_8$ Heterotic String Theory, we try to solve the discrepancy between the unification scale predicted by this theory ($\approx g_{GUT}\times 5.27\cdot 10^{17}$ GeV) and the value deduced from LEP experiments ($\approx 2\cdot 10^{16}$ GeV). A crucial ingredient in our solution is the presence at low energies of three generations of supersymmetric Higgses and vector-like colour triplets. As a by-product our analysis gives rise to a strategy which might be useful when constructing realistic models.

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