A Supersymmetric Composite Model with Dynamical Supersymmetry Breaking

Abstract

We present a supersymmetric composite model with dynamical supersymmetry breaking. The model is based on the gauge group $SU(2{)}_S\times SU(2{)}_H\times SU(3{)}_c\times SU(2{)}_L\times U(1{)}_Y$. Supersymmetry is dynamically broken by the non-perturbative effect of the $SU(2{)}_S$ `supercolor' interaction. The large top Yukawa coupling is naturally generated by the $SU(2{)}_H$ `hypercolor' interaction as recently proposed by Nelson and Strassler. The supersymmetry breaking is mediated to the standard model sector by a new mechanism. The electroweak symmetry breaking is caused by the radiative correction due to the large top Yukawa coupling with the supersymmetry breaking. This is the `radiative breaking scenario', which originates from the dynamics of the supercolor and hypercolor gauge interactions.

30 pages, uses REVTEX macro, revised manuscript to appear in Phys. Rev. D

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