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arXiv · 0907.0728

Amelioration of Little Hierarchy Problem in SU(4)_c x SU(2)_L x SU(2)_R

Ilia Gogoladze·Mansoor Ur Rehman·Qaisar Shafi
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Abstract

The little hierarchy problem encountered in the constrained minimal supersymmetric model (CMSSM) can be ameliorated in supersymmetric models based on the gauge symmetry G_{422} \equiv SU(4)_c x SU(2)_L x SU(2)_R. The standard assumption in CMSSM (and in SU(5) and SO(10)) of universal gaugino masses can be relaxed in G_{422}, and this leads to a significant improvement in the degree of fine tuning required to implement radiative electroweak breaking in the presence of a characteristic supersymmetry breaking scale of around a TeV. Examples of Higgs and sparticle mass spectra realized with 10% fine tuning are presented.

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Ilia Gogoladze, Mansoor Ur Rehman, Qaisar Shafi. 2009-07-03. Amelioration of Little Hierarchy Problem in SU(4)_c x SU(2)_L x SU(2)_R. https://doi.org/10.1103/physrevd.80.105002

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