Electroweak symmetry breaking in supersymmetric models with heavy scalar superpartners

Details Electroweak symmetry breaking in supersymmetric models with heavy scalar superpartners Electroweak symmetry breaking in supersymmetric models with heavy scalar superpartners

2004-07-21

arxiv.org/abs/hep-ph/0407242v1

Phys.Lett. B598 (2004) 252-262

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, no figures, LaTeX

Scientific paper

10.1016/j.physletb.2004.08.009

We propose a novel mechanism of electroweak symmetry breaking in supersymmetric models, as the one recently discussed by Birkedal, Chacko and Gaillard, in which the Standard Model Higgs doublet is a pseudo-Goldstone boson of some global symmetry. The Higgs mass parameter is generated at one loop level by two different, moderately fine-tuned sources of the global symmetry breaking. The mechanism works for scalar superpartner masses of order 10 TeV, but gauginos can be light. The scale at which supersymmetry breaking is mediated to the visible sector has to be low, of order 100 TeV. Fine-tuning in the scalar potential is at least two orders of magnitude smaller than in the MSSM with similar soft scalar masses. The physical Higgs boson mass is (for $\tan\beta\gg1$) in the range 120-135 GeV.

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