# A natural solution to the μ problem

@article{Casas1993ANS,
title={A natural solution to the $\mu$ problem},
author={J. Alberto Casas and Carlos Mu{\~n}oz},
journal={Physics Letters B},
year={1993},
volume={306},
pages={288-294}
}
• Published 5 February 1993
• Physics
• Physics Letters B
Abstract We propose a simple mechanism for solving the μ-problem in the context of minimal low-energy supergravity models. This is based on the appearance of non-renormalizable couplings in the superpotential. In particular, if H1H2 is an allowed operator by all the symmetries of the theory, it is natural to promote the usual renormalizable superpotential W0 to W0+λW0H1H2, yielding an effective μ parameter whose size is directly related to the gravitino mass once supersymmetry is broken (this…
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#### References

SHOWING 1-10 OF 34 REFERENCES
A natural solution to the μ-problem in supergravity theories
• Physics
• 1988
We propose a “natural” way to avoid the introduction by hand of a small mass scale μ in the observable sector of N = 1 supergravity theories. In our approach, μ automatically arises from the general
A natural solution of the μ problem with a composite axion in the hidden sector
• Physics
• 1992
Abstract Some superstring models with an intermediate scale hidden sector for supersymmetry breaking can provide a global symmetry which induces the needed μ-term of the supersymmetric standard model
On the low energy d = 4, N = 1 supergravity theory extracted from the d = 10, N = 1 superstring
• Physics
• 1985
We extract some general features of the N = 1 supergravity, d = 4 theory which could be obtained as a low energy limit of the recently proposed anomaly-free superstring theories. One finds that after
Massive hidden matter and gaugino condensation
• Physics
• 1991
Abstract We formulate, in a duality-invariant way, the modification produced in the gaugino condensation mechanism by the presence of massive hidden matter (with masses higher than the condensation
Nonperturbative Aspects in Supersymmetric Gauge Theories
• Physics
• 1988
Abstract We review our present understanding of those non-perturbative features of supersymmetric gauge theories that are believed to determine the properties of their ground states (vacua). A wide
Supergravity as the messenger of supersymmetry breaking
• Physics
• 1983
A systematic study is made of theories in which supergravity is spontaneously broken in a ''hidden'' sector of superfields that interact with ordinary matter only through supergravity. General rules
Yukawa couplings in degenerate orbifolds: towards a realistic SU(3)×SU(2)×U(1) superstring
• Physics
• 1988
Abstract We discuss the construction of SU(3)×SU(2)×U(1) three-generation superstrings through the “degenerate orbifolds” recently described by the authors. These are lower rank models continuosly
Target-space duality, supersymmetry breaking and the stability of classical string vacua
• Physics
• 1991
Abstract Target-space duality symmetries are present in many static string vacua studied up to now. They are conjectured to remain unbroken even after non-perturbative string effects are taken into
Dynamical supersymmetry breaking in supersymmetric QCD
• Physics
• 1984
The massless limit of supersymmetric QCD with Nƒ flavors and N colors is analyzed in detail. For Nƒ < N there is a unique superpotential which might be generated by non-perturbative effects. We show
The μ-problem and the strong CP-problem
• Physics
• 1984
Abstract We investigate a possible connection of a solution of the strong CP-problem and the generation of a mass term μ in the low energy Higgs superpotential of supersymmetric models. This