| Автор | Ralph Blumenhagen |
| Автор | Gabriele Honecker |
| Автор | Timo Weigand |
| Дата выпуска | 2005-06-01 |
| dc.description | We consider the E <sub>8</sub> × E <sub>8</sub> 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 Kähler and dilaton moduli. We study concrete bundles with structure group SU(N) × U(1)<sup> M </sup> 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. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Loop-corrected compactifications of the heterotic string with line bundles |
| Тип | paper |
| DOI | 10.1088/1126-6708/2005/06/020 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2005 |
| Первая страница | 20 |
| Последняя страница | 020 |
| Выпуск | 06 |
