Flipped SU(5)
The
Flipped SU(5) model is a
GUT theory which states that the
gauge group is [
SU(5) x
U(1) ]/ and the fermions form three families, each consisting of the
representations , 10
-1 and 1
-5. This includes right-handed neutrinos, which are known to exist because of observed neutrino oscillations. There is also an adjoint
scalar field, a
10-1 and/or called the Higgs field which acquires a VEV. This results in a
spontaneous symmetry breaking from
-
to
-
and also,
- , , , .
Of course, calling the
representations things like and 24
0 is purely a physicist's convention, not a mathematician's convention, where representations are either labelled by Young tableaux or Dynkin diagrams with numbers on their vertices, but still, it is standard among GUT theorists.
Since the homotopy group
-
this model no predicts
monopoles. See Hooft-Polyakov monopole.
To do:
- This theory was invented by ???.