Loop-corrected compactifications of the heterotic string with line bundles

• Verfasst von: Blumenhagen, Ralph [VerfasserIn]
• Verfasst von: Honecker, Gabriele [VerfasserIn]
• Verfasst von: Weigand, Timo [VerfasserIn]
• Titel: Loop-corrected compactifications of the heterotic string with line bundles
• Verf.angabe: Ralph Blumenhagen, Gabriele Honecker and Timo Weigand
• Fussnoten: Gesehen am 09.01.2018
• Titel Quelle: Enthalten in: De.arxiv.org
• Jahr Quelle: 2005
• Band/Heft Quelle: (2005) Artikel-Nummer 0504232, 47 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1566976510

Abstract

We consider the E8 x E8 heterotic string theory compactified on Calabi-Yau manifolds with bundles containing abelian factors in their structure group. Generic low energy consequences such as the generalised Green-Schwarz mechanism for the multiple anomalous abelian gauge groups are studied. We also compute the holomorphic gauge couplings and induced Fayet-Iliopoulos terms up to one-loop order, where the latter are interpreted as stringy one-loop corrections to the Donaldson-Uhlenbeck-Yau condition. Such models generically have frozen combinations of Kaehler and dilaton moduli. We study concrete bundles with structure group SU(N) x U(1)^M yielding quasi-realistic gauge groups with chiral matter given by certain bundle cohomology classes. We also provide a number of explicit tadpole free examples of bundles defined by exact sequences of sums of line bundles over complete intersection Calabi-Yau spaces. This includes one example with precisely the Standard Model gauge symmetry.