Heterotic GUT and standard model vacua from simply connected Calabi-Yau manifolds
We consider four-dimensional supersymmetric compactifications of the E8×E8 heterotic string on Calabi-Yau manifolds endowed with vector bundles with structure group SU(N)×U(1) and five-branes. After evaluating the Green-Schwarz mechanism and deriving the generalized Donaldson-Uhlenbeck-Yau condition...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
30 June 2006
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| In: |
Nuclear physics. B, Particle physics
Year: 2006, Jahrgang: 751, Heft: 1, Pages: 186-221 |
| ISSN: | 1873-1562 |
| DOI: | 10.1016/j.nuclphysb.2006.06.005 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1016/j.nuclphysb.2006.06.005 Verlag, kostenfrei, Volltext: http://www.sciencedirect.com/science/article/pii/S0550321306004780 
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| Verfasserangaben: | Ralph Blumenhagen, Sebastian Moster, Timo Weigand |
| Zusammenfassung: | We consider four-dimensional supersymmetric compactifications of the E8×E8 heterotic string on Calabi-Yau manifolds endowed with vector bundles with structure group SU(N)×U(1) and five-branes. After evaluating the Green-Schwarz mechanism and deriving the generalized Donaldson-Uhlenbeck-Yau condition including the five-brane moduli, we show that this construction can give rise to GUT models containing U(1) factors like flipped SU(5) or directly the Standard Model even on simply connected Calabi-Yau manifolds. Concrete realizations of three-generation models on elliptically fibered Calabi-Yau manifolds are presented. They exhibit the most attractive features of flipped SU(5) models such as doublet-triplet splitting and proton stability. In contrast to conventional GUT string models, the tree level relations among the Standard Model gauge couplings at the GUT scale are changed. |
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| Beschreibung: | Gesehen am 09.01.2018 |
| Beschreibung: | Online Resource |
| ISSN: | 1873-1562 |
| DOI: | 10.1016/j.nuclphysb.2006.06.005 |