Supersymmetric Standard Model from the Heterotic String

Journal Article · Fri Mar 31 04:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.121602· OSTI ID:20775139

Buchmueller, Wilfried; Hamaguchi, Koichi ^[1]; Lebedev, Oleg; Ratz, Michael ^[2]

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1. Deutsches Elektronen-Synchrotron DESY, 22603 Hamburg (Germany)
2. Physikalisches Institut der Universitaet Bonn, Nussallee 12, 53115 Bonn (Germany)

We present a Z{sub 6} orbifold compactification of the E{sub 8}xE{sub 8} heterotic string which leads to the (supersymmetric) standard model gauge group and matter content. The quarks and leptons appear as three 16-plets of SO(10), whereas the Higgs fields do not form complete SO(10) multiplets. The model has large vacuum degeneracy. For generic vacua, no exotic states appear at low energies and the model is consistent with gauge coupling unification. The top quark Yukawa coupling arises from gauge interactions and is of the order of the gauge couplings, whereas the other Yukawa couplings are suppressed.

• OSTI ID: 20775139
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 96; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPACTIFICATION
GAUGE INVARIANCE
HIGGS MODEL
LEPTONS
MULTIPLETS
SO-10 GROUPS
STANDARD MODEL
SUPERSTRING MODELS
SUPERSYMMETRY
T QUARKS
TOPOLOGY
YUKAWA POTENTIAL