Does Weak CP Phase Originate from a Certain Geometry ?
  We further investigate the probability that, weak CP phase originates in a certain geometry. We find that our postulation on weak CP Phase gives strict constraints on angle gamma in unitarity triangle DB and the element Vtd in Cabibbo-Kobayashi-Maskawa (CKM) matrix. The predicted Vtd is about 0.0086 and gamma about 75.3^o with the very narrow window respectively. These two parameters can be used to test our postulation precisely in near future. 
Yong Liu