Worldsheet Instantons and Torsion Curves
| dc.creator | Braun, Volker | |
| dc.creator | Kreuzer, Maximilian | |
| dc.creator | Ovrut, Burt A. | |
| dc.creator | Scheidegger, Emanuel | |
| dc.date | 2008-01-27 | |
| dc.date.accessioned | 2026-07-07T08:56:46Z | |
| dc.date.available | 2026-07-07T08:56:46Z | |
| dc.description | We study aspects of worldsheet instantons relevant to a heterotic standard model. The non-simply connected Calabi-Yau threefold used admits Z_3 x Z_3 Wilson lines, and a more detailed investigation shows that the homology classes of curves are H_2(X,Z)=Z^3+Z_3+Z_3. We compute the genus-0 prepotential, this is the first explicit calculation of the Gromov-Witten invariants of homology classes with torsion (finite subgroups). In particular, some curve classes contain only a single instanton. This ensures that the Beasley-Witten cancellation of instanton contributions cannot happen on this (non-toric) Calabi-Yau threefold. | |
| dc.description | 9 pages. To appear in the proceedings of the first Sowers Theoretical Physics workshop, Virginia Tech, May 2007 | |
| dc.identifier | https://arxiv.org/abs/0801.4154 | |
| dc.identifier | http://arxiv.org/abs/0801.4154 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/146727 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Worldsheet Instantons and Torsion Curves | |
| dc.type | text |