8 papers · 1 filter
Realistic Yukawa Textures and SUSY Spectra from Intersecting Branes
Ching-Ming Chen, Tianjun Li, V. E. Mayes +1
We study the possible phenomenology of a three-family Pati-Salam model constructed from intersecting D6-branes in Type IIA string theory on the T^6/(Z2 x Z2) orientifold with some…
Fermion Masses and Mixings in GUTs with Non-Canonical U(1)_Y
Ilia Gogoladze, Chin-Aik Lee, Tianjun Li +1
We discuss fermion masses and mixings in models derived from orbifold GUTs such that gauge coupling unification is achieved without low energy supersymmetry by utilizing a non-cano…
Implications of Canonical Gauge Coupling Unification in High-Scale Supersymmetry Breaking
V. Barger, N. G. Deshpande, Jing Jiang +2
We systematically construct two kinds of models with canonical gauge coupling unification and universal high-scale supersymmetry breaking. In the first we introduce standard vector…
String Scale Gauge Coupling Unification with Vector-like Exotics and Non-Canonical U(1)_Y Normalization
V. Barger, Jing Jiang, Paul Langacker +1
We use a new approach to study string scale gauge coupling unification systematically, allowing both the possibility of non-canonical U(1)_Y normalization and the existence of vect…
String Inspired Singlet Extensions of the Minimal Supersymmetric Standard Model
Tianjun Li
The only allowed Higgs superpotential term at stringy tree level in the string derived Singlet Extensions of the Minimal Supersymmetric Standard Model (SEMSSM) is h S H_d H_u, whic…
Phenomenology Remarks in M-theory on
Tianjun Li
In the simplest compactification, we discuss the intermediate unification in M-theory on , and point out that we can push the eleven dimension Planck scale to the TeV rang…