paper

On higher spins and the tensionless limit of String Theory

arXiv:hep-th/0311257 · doi:10.1016/j.nuclphysb.2004.01.024

Abstract

We discuss string spectra in the low-tension limit using the BRST formalism, with emphasis on the role of triplets of totally symmetric tensors and spinor-tensors and their generalizations to cases with mixed symmetry and to (A)dS backgrounds. We also present simple compensator forms of the field equations for individual higher-spin gauge fields that display the {unconstrained} gauge symmetry of a previous non-local construction and reduce upon partial gauge fixing to the (Fang-)Fronsdal equations. For Bose fields we also show how a local Lagrangian formulation with {unconstrained} gauge symmetry is determined by a previous BRST construction.

44 pages, LATEX. Improper interpretation of gauge-fixing procedure for (A)dS triplet removed, misprints corrected, references added

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