Intermediate Scales in Supersymmetric GUTs: the Survival of the Fittest

Details Intermediate Scales in Supersymmetric GUTs: the Survival of the Fittest Intermediate Scales in Supersymmetric GUTs: the Survival of the Fittest

1999-04-15

arxiv.org/abs/hep-ph/9904352v2

Phys.Lett.B460:325-332,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 11 pages, references added

Scientific paper

10.1016/S0370-2693(99)00750-9

We show that intermediate scales in supersymmetric grand unified theories may exist naturally. Their origin is traced to the violation of the survival principle: in supersymmetry internal symmetries often forbid cubic couplings in the superpotential. This leads to a plethora of light supermultiplets whose masses are generated only by higher dimensional operators and thus suppressed by the cut-off scale. These new states often carry exotic quantum numbers and may be, in some cases, accessible to experiments in the near future.

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