arXiv:0704.3568·v1·High Energy Physics — Phenomenology
Fermion Masses and Mixings in GUTs with Non-Canonical U(1)_Y
Ilia Gogoladze🇺🇸 · Chin-Aik Lee🇺🇸 · Tianjun Li🇺🇸 · Qaisar Shafi🇺🇸
Abstract
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-canonical U(1)_Y. A gauged U(1)_X flavor symmetry plays an essential role, and the Green-Schwarz mechanism is invoked in anomaly cancellations. Models containing vector-like particles with masses close to M_{GUT} are also discussed.
Comments: 18 pages