Chiral supersymmetric Standard Model spectra from orientifolds of Gepner models [rapid communication]
Abstract
We construct d = 4, N = 1 orientifolds of Gepner models with just the chiral spectrum of the Standard Model. We consider all simple current modular invariants of c = 9 tensor products of N = 2 minimal models. For some very specific tensor combinations, and very specific modular invariants and orientifold projections, we find a large number of such spectra. We allow for Standard Model singlet (dark) matter and nonchiral exotics. The ChanPaton gauge group is either U (3) × Sp (2) × U (1) × U (1) or U (3) × U (2) × U (1) × U (1). In many cases the Standard Model hypercharge U (1) has no coupling to RR 2forms and hence remains massless; in some of those models the BL gauge boson does acquire a mass.
 Publication:

Physics Letters B
 Pub Date:
 March 2005
 DOI:
 10.1016/j.physletb.2004.04.094
 arXiv:
 arXiv:hepth/0403196
 Bibcode:
 2005PhLB..609..408D
 Keywords:

 High Energy Physics  Theory
 EPrint:
 16 pages, LaTeX, minor corrections, references added Link added to updated and almost complete results