Gauge-Higgs Unification from the Heterotic String

Journal Article · Tue Nov 20 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2823799· OSTI ID:21039346

Schmidt, Jonas ^[1]

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1. Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22603 Hamburg (Germany)

We present a 6D orbifold model on T{sup 2}/Z{sub 2} which emerges as intermediate step in the compactification of the heterotic string to the supersymmetric standard model in four dimensions. It has SU(6) gauge symmetry in the bulk and two pairs of inequivalent fixed points with unbroken SU(5) and SU(2)xSU(4) symmetry, respectively. All anomalies are cancelled by the Green-Schwarz mechanism. Two quark-lepton generations are located at the SU(5) branes, the third family is composed of split bulk hypermultiplets. The model has vacua with partial or full gauge-Higgs unification and non-vanishing Yukawa couplings which generically avoid the unsuccessful SU(5) mass relations.

• OSTI ID: 21039346
• Journal Information: AIP Conference Proceedings, Vol. 957, Issue 1; Conference: PASCOS 2007: 13. international symposium on particles, strings and cosmology, London (United Kingdom), 2-7 Jul 2007; Other Information: DOI: 10.1063/1.2823799; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANES
COMPACTIFICATION
COUPLING
GAUGE INVARIANCE
HIGGS BOSONS
HIGGS MODEL
LEPTONS
QUARKS
REST MASS
STANDARD MODEL
SU-5 GROUPS
SUPERSYMMETRY