| Автор | Mirjam Cvetič |
| Автор | Robert Richter |
| Автор | Timo Weigand |
| Дата выпуска | 2008-07-01 |
| dc.description | We study non-perturbative effects in four-dimensional N = 1 supersymmetric orientifold compactifications due to D-brane instantons which are not invariant under the orientifold projection. We show that they can yield superpotential contributions via a multi-instanton process at threshold. Some constituents of this configuration form bound states away from the wall of marginal stability which can decay in other regions of moduli space. A microscopic analysis reveals how contributions to the superpotential are possible when new BPS states compensate for their decay. We study this concretely for D2-brane instantons along decaying special Lagrangians in Type IIA and for D5-branes instantons carrying holomorphic bundles in Type I theory. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | (Non-)BPS bound states and D-brane instantons |
| Тип | paper |
| DOI | 10.1088/1126-6708/2008/07/012 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2008 |
| Первая страница | 12 |
| Последняя страница | 012 |
| Аффилиация | Mirjam Cvetič; Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104-6396, U.S.A. |
| Аффилиация | Robert Richter; Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104-6396, U.S.A. |
| Аффилиация | Timo Weigand; Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104-6396, U.S.A. |
| Выпуск | 07 |
