Research Article

Initial Systematic Investigations of the Landscape of Low-Layer NAHE Variation Extensions

Table 3

A summary of the GUT group study with regard to the number of chiral fermion generations in the NAHE variation investigation.

GUT Net chiral generations Three generations

   Yes No
   Yes No
   No No
   No No
   No No
Pati-Salam No No
L-R symmetric No No
MSSM No No