Supersymmetric SO(10) grand unified models with Yukawa unification and a positive μ term -: art. no. 211803

Supersymmetric grand unified models based on SO(10) gauge symmetry have many desirable features, including the unification of Yukawa couplings. Including D-term contributions to scalar masses arising from the breakdown of SO(10), Yukawa coupling unification only to 30% can be achieved in models with a positive superpotential Higgs mass. The superparticle mass spectrum is highly constrained and yields relatively light top squarks and charginos. Surprisingly, the pattern of grand unified theory scale soft supersymmetry breaking masses are close to those found in the context of inverted hierarchy models.