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meteor
#8
Sep27-04, 08:41 PM
P: 915
* Georgi-Glashow model -- SU(5)
* SO(10)
* Flipped SU(5) -- SU(5)U(1)
* Pati-Salam model -- SU(4)SU(2)SU(2)
* Trinification -- SU(3)SU(3)SU(3)
* E6
* Technicolor models
This is a god summary of GUT. Some of these GUT (all?) propose the existence of particles not appearing in the SM. For example, the technicolor model proposes tthe existence of the coloron. Flipped SU(5) proposes the existence of the crypton

In what year appeared E6 GUT?