The Relation of Family and Extra Z0 Boson Number
- Received Date: 1900-01-01
- Accepted Date: 1900-01-01
- Available Online: 1992-01-05
Abstract: The three family fermions can not be accommolated the Grand Unified Theories(GUTs)if only one extra Z0 boson exists.The minimal GUTs with three families should include two extra Z0 bosons which belong to the different broken scales.Georg's argument on heavy Dirac fermions has been realized.These Dirac fermions should not be bizarre.Frampton's SU(9) model should be essentially same as its SU(7) model.The difficulty of the proton decay may be resolved.