Pure spinor superstrings on generic type IIA supergravity backgrounds

R. D'Auria, P. Fré, P. A. Grassi, M. Trigiante

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

We derive the Free Differential Algebra for type IIA supergravity in 10 dimensions in the string frame. We provide all fermionic terms for all curvatures. We derive the Green-Schwarz sigma model for type IIA superstring based on the FDA construction and we check its invariance under κ-symmetry. Finally, we derive the pure spinor sigma model and we check the BRST invariance. The present derivation has the advantage that the resulting sigma model is constructed in terms of the superfields appearing in the FDA and therefore one can directly relate a supergravity background with the corresponding sigma model. The complete explicit form of the BRST transformations is given and some new pure spinor constraints are obtained. Finally, the explicit form of the action is given.

Lingua originaleInglese
Numero di articolo059
RivistaJournal of High Energy Physics
Volume2008
Numero di pubblicazione7
DOI
Stato di pubblicazionePubblicato - 1 lug 2008

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