F(4) terms in N=4 string vacua
Mar, 199613 pages
Part of String theory, gauge theory and quantum gravity. Proceedings, Spring School and Workshop, Trieste, Italy, March 18-29, 1996, 194-199
Published in:
- Nucl.Phys.B Proc.Suppl. 55 (1997) 194-199
Contribution to:
e-Print:
- hep-th/9611205 [hep-th]
Report number:
- CERN-TH-96-153
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Abstract:
We discuss terms in toroidal compactifications of type-I and heterotic SO(32) string theory. We give a simple argument why only short BPS multiplets contribute to these terms at one loop, and verify heterotic-type-I duality to this order. Assuming exact duality, we exhibit in the heterotic calculation non-zero terms that are two-loop, three-loop and non-perturbative on the type-I side.Note:
- To appear in Proceedings of Trieste Spring School and Workshop, April 1996, 13 pages, Latex Report-no: CERN-TH/96-153
- talk: Trieste 1996/03/18
- string model: heterotic
- compactification: torus
- vacuum state
- gauge field theory: action
- field theory: soliton
- duality
- perturbation theory: higher-order
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