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

G. Dvali; G. F. Giudice; A. Pomarol

doi:10.1016/0550-3213(96)00404-X

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

G. Dvali, G. F. Giudice, A. Pomarol

Research output: Contribution to journal › Article › peer-review

Abstract

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 B_μ is also generated at the same loop order. This leads to the problematic relation B_μ ∼ μΛ, where A ∼ 10-100 TeV is the effective supersymmetry-breaking scale. We 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 B_μ 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.

Original language	English (US)
Pages (from-to)	31-45
Number of pages	15
Journal	Nuclear Physics B
Volume	478
Issue number	1-2
DOIs	https://doi.org/10.1016/0550-3213(96)00404-X
State	Published - Oct 28 1996

ASJC Scopus subject areas

Nuclear and High Energy Physics

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abstract = "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 Bμ ∼ μΛ, where A ∼ 10-100 TeV is the effective supersymmetry-breaking scale. We 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.",

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AU - Giudice, G. F.

AU - Pomarol, A.

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N2 - 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 Bμ ∼ μΛ, where A ∼ 10-100 TeV is the effective supersymmetry-breaking scale. We 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.

AB - 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 Bμ ∼ μΛ, where A ∼ 10-100 TeV is the effective supersymmetry-breaking scale. We 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.

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

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