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We propose an extension of the Standard Model inspired by the E8×E8 Heterotic String. In order that a reasonable effective Lagrangian is presented we neglect everything else other than the ten-dimensional N=1 supersymmetric Yang–Mills sector associated with one of the gauge factors and certain couplings necessary for anomaly cancellation. We consider a compactified space–time M4×B0/Z3, where B0 is...
One notoriously difficult problem in perturbative gauge mediation of supersymmetry breaking via messenger fields is the generic presence of a phenomenologically unacceptable vacuum with messenger vevs, with a lower energy than the desired (“MSSM”) vacuum. We investigate the possibility that quantum corrections promote the latter to the ground state of the theory, and find that this is indeed feasible...
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