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Singlet-stabilized minimal gauge mediation

Singlet-stabilized minimal gauge mediation We propose singlet-stabilized minimal gauge mediation as a simple Intriligator, Seiberg and Shih-based model of direct gauge mediation which avoids both light gauginos and Landau poles. The hidden sector is a massive s-confining supersymmetric QCD that is distinguished by a minimal S U ( 5 ) flavor group. The uplifted vacuum is stabilized by coupling the meson to an additional singlet sector with its own U ( 1 ) gauge symmetry via nonrenormalizable interactions suppressed by a higher scale Λ UV in the electric theory. This generates a nonzero vacuum expectation value for the singlet meson via the inverted hierarchy mechanism, but requires tuning to a precision ∼ ( Λ / Λ UV ) 2 , which is ∼ 10 - 4 . In the course of this analysis we also outline some simple model-building rules for stabilizing uplifted-ISS models, which lead us to conclude that meson deformations are required (or at least heavily favored) to stabilize the adjoint component of the magnetic meson. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Singlet-stabilized minimal gauge mediation

Curtin, David; Tsai, Yuhsin
Physical Review D , Volume 83 (7) – Apr 1, 2011
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References (54)

Publisher
American Physical Society (APS)
Copyright
Copyright © 2011 The American Physical Society
ISSN
1550-7998
eISSN
1550-2368
DOI
10.1103/PhysRevD.83.075005
Publisher site
See Article on Publisher Site

Abstract

We propose singlet-stabilized minimal gauge mediation as a simple Intriligator, Seiberg and Shih-based model of direct gauge mediation which avoids both light gauginos and Landau poles. The hidden sector is a massive s-confining supersymmetric QCD that is distinguished by a minimal S U ( 5 ) flavor group. The uplifted vacuum is stabilized by coupling the meson to an additional singlet sector with its own U ( 1 ) gauge symmetry via nonrenormalizable interactions suppressed by a higher scale Λ UV in the electric theory. This generates a nonzero vacuum expectation value for the singlet meson via the inverted hierarchy mechanism, but requires tuning to a precision ∼ ( Λ / Λ UV ) 2 , which is ∼ 10 - 4 . In the course of this analysis we also outline some simple model-building rules for stabilizing uplifted-ISS models, which lead us to conclude that meson deformations are required (or at least heavily favored) to stabilize the adjoint component of the magnetic meson.

Journal

Physical Review D – American Physical Society (APS)

Published: Apr 1, 2011

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