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arXiv · 1209.4864

A note on higher-derivative actions for free higher-spin fields

Euihun Joung·Karapet Mkrtchyan
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Abstract

Higher-derivative theories of free higher-spin fields are investigated focusing on their symmetries. Generalizing familiar two-derivative constrained formulations, we first construct less-constrained Einstein-like and Maxwell-like higher-derivative actions. Then, we construct Weyl-like actions - the actions admitting constrained Weyl symmetries - with different numbers of derivatives. They are presented in a factorized form making use of Einstein-like and Maxwell-like tensors. The last (highest-derivative) member of the hierarchy of the Weyl-like actions coincides with the Fradkin-Tseytlin conformal higher-spin action in four dimensions.

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Euihun Joung, Karapet Mkrtchyan. 2012-11-27. A note on higher-derivative actions for free higher-spin fields. https://doi.org/10.1007/jhep11(2012)153

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