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Higher-spin states of the superstring in an electromagnetic background

Abstract : Constructing a consistent four-dimensional Lagrangian for charged massive higher-spin fields propagating in an electromagnetic background is an open problem. In 1989, Argyres and Nappi used bosonic open string field theory to construct a Lagrangian for charged massive spin-2 fields in a constant electromagnetic background. In this paper, we use the four-dimensional hybrid formalism for open superstring field theory to construct a supersymmetric Lagrangian for charged massive spin-2 and spin-3/2 fields in a constant electromagnetic background. The hybrid formalism has the advantage over the RNS formalism of manifest $ \mathcal{N} $ = 1 d=4 spacetime supersymmetry so that the spin-2 and spin-3/2 fields are combined into a single superfield and there is no need for picture-changing or spin fields.
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https://hal.archives-ouvertes.fr/hal-03405441
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Submitted on : Wednesday, October 27, 2021 - 11:43:10 AM
Last modification on : Monday, December 5, 2022 - 3:39:11 AM

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Karim Benakli, Nathan Berkovits, Cassiano A. Daniel, Matheus Lize. Higher-spin states of the superstring in an electromagnetic background. JHEP, 2021, 12, pp.112. ⟨10.1007/JHEP12(2021)112⟩. ⟨hal-03405441⟩

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