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George Jones
#9
Mar5-10, 08:23 AM
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Very roughly: SU(3)XSU(2)XU(1) splits cleanly, as a Cartesian product, into strong SU(3) and electoweak SU(2)XU(1). The electroweak SU(2)XU(1) does not split cleanly into a weak SU(2) part and U(1) electromagnetism part. Weak SU(2) is a "mixture" of stuff in SU(2)XU(1); electromagnetism U(1) is a "mixture" of stuff in SU(2)XU(1).

So, I agree with
Quote Quote by Altabeh View Post
Well, I don't think the strong force has been combined with the other two. There is just an electroweak theory which covers electromagnetism and weak force together!