# Orbifold-induced μ term and electroweak symmetry breaking

@article{Brignole1996OrbifoldinducedT, title={Orbifold-induced $\mu$ term and electroweak symmetry breaking}, author={Andrea Brignole and Luis E. Ib'anez and Carlos Mu{\~n}oz}, journal={Physics Letters B}, year={1996}, volume={387}, pages={769-774} }

Abstract It is known that a Higgs μ term can be naturally generated through the Kahler potential in orbifold string models in which one of the three compactified complex planes has order two. In this class of models explicit expressions for both the μ parameter and the soft SUSY-breaking parameters can be obtained under the assumption that the goldstino is an arbitrary linear combination of the fermionic partners of the dilaton S and all the moduli T i , U i . We apply this picture to the MSSM… Expand

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#### References

SHOWING 1-10 OF 34 REFERENCES

Effective μ-term in superstring theory☆

- Physics
- 1994

Abstract In four-dimensional compactifications of the heterotic superstring theory the Kahler potential has a form which generilly induces a superpotential mass term for Higgs particles once… Expand

Flavor-changing neutral current constraints on standardlike orbifold models.

- Physics, Medicine
- Physical review. D, Particles and fields
- 1995

To establish the flavor-changing neutral current constraints, the renormalization group one-loopmore equations for the full set of gauge, Yukawa, and supersymmetry-breaking coupling constants are solved. Expand

Phenomenological implications of supersymmetry breaking by the dilaton

- Physics
- 1993

Abstract We investigate the low energy properties of string vacua with spontaneously broken N = 1 supersymmetry by a dilaton F -term. As a consequence of the universal couplings of the dilaton, the… Expand

Higgs and super-Higgs effects with naturally vanishing classical vacuum energy

- Physics
- 1995

Abstract We construct N = 1 supergravity models where the gauge symmetry and supersymmetry are both spontaneously broken, with naturally vanishing classical vacuum energy and unsuppressed Goldstino… Expand

Duality-anomaly cancellation, minimal string unification and the effective low-energy lagrangian of 4D strings

- Physics
- 1992

We present a systematic study of the constraints coming from targetspace duality and the associated duality anomaly cancellations on orbifoldlike 4-D strings. A prominent role is played by the… Expand

Towards a theory of soft terms for the supersymmetric Standard Model

- Physics
- 1994

Abstract We perform a systematic analysis of the soft supersymmetry-breaking terms arising in some large classes of four-dimensional strings. The analysis does not assume any specific… Expand

Supersymmetry and SU(2) × U(1) breaking with naturally vanishing vacuum energy

- Physics
- 1995

Abstract We show how the spontaneous breaking of local N = 1 supersymmetry and of the SU(2) × U(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum energy, in… Expand

A natural solution to the μ-problem in supergravity theories

- Physics
- 1988

Abstract 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… Expand

MODULI SPACES AND TARGET SPACE DUALITY SYMMETRIES IN (0,2) ZN ORBIFOLD THEORIES WITH CONTINUOUS WILSON LINES

- Physics
- 1994

Abstract We present the coset structure of the untwisted moduli space of heterotic (0, 2) ZN orbifold compactifications with continuous Wilson lines. For the cases where the internal 6-torus T6 is… Expand

The low-energy supersymmetric spectrum according to N = 1 supergravity guts

- Physics
- 1985

Abstract We reexamine the radiative SU(2) × U(1) breaking induced by broken N = 1 supergravity in the light of recent experimental results. Explicit formulae are given for the supersymmetric particle… Expand