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World-sheet versus spectrum symmetries in heterotic and type II superstrings

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Theisen,  Stefan
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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NuclPhyB325-1989.pdf
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Citation

Ferrara, S., Lüst, D., & Theisen, S. (1990). World-sheet versus spectrum symmetries in heterotic and type II superstrings. Nuclear Physics B, 325(2), 501-525. doi:10.1016/0550-3213(89)90464-1.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-5CED-9
Abstract
We discuss the relation between world-sheet symmetries of general four-dimensional superstring theories and the classification of their massless and massive excitations. This follows from the connection between extended superconformal algebras on the world-sheet and extended space-time supersymmetry algebras. In particular we show that the relevant Kac-Moody symmetries are extended to the spectrum symmetries of the supermultiplets of states. This analysis reproduces results for the field theory limit of superstring compactifications.