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Journal Article

Superstring BRST cohomology

MPS-Authors

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

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Fulltext (public)

2722.pdf
(Preprint), 407KB

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Citation

Brandt, F., Kling, A., & Kreuzer, M. (2001). Superstring BRST cohomology. Journal of High Energy Physics, 2001(8): 023.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-5681-9
Abstract
We first derive all world-sheet action functionals for NSR superstring models with (1,1) supersymmetry and any number of abelian gauge fields, for gauge transformations of the standard form. Then we prove for these models that the BRST cohomology groups $H^g(s)$, $g<4$ (with the antifields taken into account) are isomorphic to those of the corresponding bosonic string models, whose cohomology is fully known. This implies that the nontrivial global symmetries, Noether currents, background charges, consistent deformations and candidate gauge anomalies of an NSR (1,1) superstring model are in one-to-one correspondence with their bosonic counterparts.