A Gauge Mediation Model of Dynamical Supersymmetry Breaking without Color Instability

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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11 pages, Latex

Scientific paper

10.1016/S0370-2693(98)00189-0

We construct a gauge mediation model of dynamical supersymmetry breaking (DSB) based on a vector-like gauge theory, in which there is a unique color-preserving true vacuum. The DSB scale $\Lambda/4\pi$ turns out to be as high as $\Lambda/4\pi \simeq 10^{8-9} GeV$, since the transmission of the DSB effects to the standard model sector is completed through much higher loops. This model is perfectly natural and phenomenologically consistent. We also stress that the dangerous D-term problem for the messenger U(1)_m is automatically solved by a charge conjugation symmetry in the vector-like gauge theory.

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