Thread: Constraints for New Fundamental Force
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Jan9-12, 10:40 PM   #29
 
Quote by Vanadium 50 View Post
Since a new force has to be at least SU(4) gauge group or higher..
Untrue.
Why untrue. You mean a new force can belong to one of the lower symmetry group like U(1) or SU(3) which the electromagnetic and strong force also use?