331-MODEL AND BILEPTON
[202] "Chiral Dilepton Model and the Flavor Question"
by P.H. Frampton. Phys. Rev. Lett. 69 2889 (1992).
This 331-model arose in 1992 from earlier work in 1990
on grand unification using an SU(15) group. In that theory the
unification scale can be much lower than in SU(5) because proton
decay is avoided. Another advantage of SU(15) is that, as in SO(10)
but not SU(5), all the quarks and leptons in a family are in a single
irreducible representation. A special prediction is the existence
of bilepton particles which are gauge bosons, doublets under weak
isospin SU(2), with double and single electric charges. In 1992
I used the name "dilepton" but changed the name to "bilepton"
in the mid 1990s to distinguish my predicted particle
from the dilepton usage, for two leptons of opposite charge,
common in the experimental high-energy community.
The bilepton, like the axigluon discussed on another of these pages,
could be
produced and detected at the Large Hadron Collider (LHC).
Open question about bilepton:
Does it exist in Nature?
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