Non-vanishing heterotic superpotentials on elliptic fibrations
Journal Article
·
· Journal of High Energy Physics (Online)
- Univ. of Western Australia, Perth, WA (Australia). Dept. of Physics
- Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Physics and Astronomy
We present models of heterotic compactification on Calabi-Yau threefolds and compute the non-perturbative superpotential for vector bundle moduli. The key feature of these models is that the threefolds, which are elliptically fibered over del Pezzo surfaces, have homology classes with a unique holomorphic, isolated genus-zero curve. Using the spectral cover construction, we present vector bundles for which we can explicitly calculate the Pfaffians associated with string instantons on these curves. These are shown to be non-zero, thus leading to a non-vanishing superpotential in the 4D effective action. We discuss, in detail, why such compactifications avoid the Beasley-Witten residue theorem.
- Research Organization:
- Univ. of Pennsylvania, Philadelphia (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0007901
- OSTI ID:
- 1505204
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2018, Issue 9; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 4 works
Citation information provided by
Web of Science
Web of Science
Eigenvalues and eigenforms on Calabi-Yau threefolds | preprint | January 2020 |
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