摘要
Using instanton effects, we consider a U（3）c × U（3）L × U（3）R gauge symmetry obtained from intersecting D6-ranes. This is equivalent to the trinification model extended by the three U（1） factors that survive as globM symmetries in the low energy effective model. In the corresponding three-stack, the fermion masses are induced by the possible stringy corrections to the corresponding superpotential by using E2-instantons. Using the known data with neutrino masses mvr-1 eV, we show the magnitudes of the relevant scales.
Using instanton effects, we consider a U（3）c × U（3）L × U（3）R gauge symmetry obtained from intersecting D6-ranes. This is equivalent to the trinification model extended by the three U（1） factors that survive as globM symmetries in the low energy effective model. In the corresponding three-stack, the fermion masses are induced by the possible stringy corrections to the corresponding superpotential by using E2-instantons. Using the known data with neutrino masses mvr-1 eV, we show the magnitudes of the relevant scales.
