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The μ-problem in theories with gauge-mediated supersymmetry breaking

The μ-problem in theories with gauge-mediated supersymmetry breaking,10.1016/0550-3213(96)00404-X,Nuclear Physics B,Gia Dvali,Gian Francesco Giudice,A

The μ-problem in theories with gauge-mediated supersymmetry breaking   (Citations: 32)
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We point out that the μ-problem in theories in which supersymmetry breaking is communicated to the observable sector by gauge interactions is more severe than the one encountered in the conventional gravity-mediated scenarios. The difficulty is that once μ is generated by a one-loop diagram, then usually Bμ is also generated at the same loop order. This leads to the problematic relation Bμtμ wheret 10–100 TeV is the effective supersymmetry-breaking scale. We 0 present a class of theories for which this problem is naturally solved. Here, without any fine tuning among parameters, μ is generated at one loop, while Bμ arises only at the two-loop level. This mechanism can naturally lead to an interpretation of the Higgs doublets as pseudo-Goldstone bosons of an approximate global symmetry.
Journal: Nuclear Physics B - NUCL PHYS B , vol. 478, no. 1, pp. 31-45, 1996
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