SupersymmetricSO(10)Grand Unified Models with Yukawa Unification and a PositiveμTerm

Supersymmetric Grand Unified Theories and Yukawa Unification

Gauge - Yukawa Unified Models

Gauge-Yukawa Unification (GYU) is obtained in GUTs by searching for renormalization group invariant relations among gauge and Yukawa couplings beyond the unification scale. Of particular interest are two supersymmetric GUTs, the finite and the minimal SU (5) models. Both models provided us,among others,with predictions of the top quark mass which so far have passed successfully the tests of pro...

Supercollider signatures of supergravity models with Yukawa unification.

We study the predictions of the simplest SU(5) grand unified model within the framework of minimal supergravity, including constraints from the radiative breaking of electroweak symmetry. As a consequence of the unification of the b-quark and τ -lepton Yukawa couplings, the top quark mass is predicted to be close to its fixed point value. We delineate the regions of the supergravity parameter s...

Implications of Yukawa unification for the Higgs sector in supersymmetric grand-unified models.

The SU(5) unification-scale relation hb = hτ between the b-quark and τ lepton Yukawa couplings severely constrains tan β and the t-quark mass (even more so if ht = hb = hτ holds) in supersymmetric models. We examine the implications of these constraints for the Higgs sector assuming universal soft breaking terms, and emphasize that both of these relations impose unique characteristics in terms ...

MSSM with Yukawa Quasi-Unification

We consider the constrained minimal supersymmetric standard model which emerges from one theory with a small deviation from Yukawa unification which is adequate for μ > 0. We show that this model possesses a wide and natural range of parameters which is consistent with the data on b → sγ, the muon anomalous magnetic moment, the cold dark matter abundance in the universe, and the Higgs boson mas...