The Model
The Flipped SU(5) model states that the gauge group is:
Fermions form three families, each consisting of the representations
This assignment includes three right-handed neutrinos, which have never been observed, but are often postulated to explain the lightness of the observed neutrinos and neutrino oscillations. There is also a and/or called the Higgs fields which acquire a VEV, yielding the spontaneous symmetry breaking
The SU(5) representations transform under this subgroup as the reducible representation as follows:
- (uc and l)
- (q, dc and νc)
- (ec)
- .
Read more about this topic: Flipped SU(5)
Famous quotes containing the word model:
“Research shows clearly that parents who have modeled nurturant, reassuring responses to infants fears and distress by soothing words and stroking gentleness have toddlers who already can stroke a crying childs hair. Toddlers whose special adults model kindliness will even pick up a cookie dropped from a peers high chair and return it to the crying peer rather than eat it themselves!”
—Alice Sterling Honig (20th century)
“There are very many characteristics which go into making a model civil servant. Prominent among them are probity, industry, good sense, good habits, good temper, patience, order, courtesy, tact, self-reliance, many deference to superior officers, and many consideration for inferiors.”
—Chester A. Arthur (18291886)