Testing the Nambu-Goldstone Hypothesis for Quarks and Leptons at the LHC

Understand

The hierarchy of the Yukawa couplings is an outstanding problem of the standard model.

• We present a class of models in which the first and second generation fermions are SUSY partners of pseudo-Nambu-Goldstone bosons that parameterize a non-compact Kahler manifold, explaining the small values of these fermion masses relative to those of the third generation.
• We also provide an example of such a model.
• We find that various regions of the parameter space in this scenario can give the correct dark matter abundance, and that nearly all of these regions evade other phenomenological constraints.