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A model for a unification of scales. From MPlanck to mv

1989; Elsevier BV; Volume: 228; Issue: 2 Linguagem: Inglês

10.1016/0370-2693(89)90663-1

1873-2445

Jogesh C. Pati,

Noncommutative and Quantum Gravity Theories

It is proposed that the hierarchical scales — from MPlanck to mv — have a common origin. Using MPlanck and the coupling constant associated with a preonic metacolor gauge force as the only input parameters, it is shown how large ratios such as (MP1MI), (MP1δms), (MP1mw), (MP1mt) and even (MP1mv)≳1027 can arise naturally. Here MI denotes an intermediate scale ∼1011 GeV, which is identified with the scale parameter of the metacolor force, while δms denotes SUSY-breaking mass splittings ∼ 1 TeV. Local supersymmetry together with an inhibition in the breaking of global SUSY (index theorem) as well as compositeness of quarks, leptons and Higgs play crucial roles in this approach. Two key features of the model are the natural origins of composite vector-like families with masses of order of a few hundred GeV to 1 TeV and the consequent see-saw mechanism for the generations of quark-lepton masses and CP violation.