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Spin-3/2 and spin-2 charged massive states in a constant electromagnetic background

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arxiv 2302.06630 v1 pith:MSYZWLK4 submitted 2023-02-13 hep-th hep-ph

classification hep-thhep-ph
keywords backgroundchargedelectromagneticspin-3actionmassivespin-2absence
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We develop in components the superspace action obtained in arXiv:2110.07623 describing the first massive level of the open charged superstring in a flat four-dimensional spacetime. In the absence of an electromagnetic background, we show how the Rarita-Schwinger and Fierz-Pauli Lagrangians are retrieved for spin-3/2 and 2, respectively. We then write different forms of the action in the presence of the electromagnetic background. The resulting equations of motion describe the propagation of fields of charged spin-3/2 and spin-1/2 on the one hand, and spin-2, 1 and 0 on the other.

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Cited by 1 Pith paper

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  1. On-shell recursion relations for higher-spin Compton amplitudes

    hep-th 2025-06 conditional novelty 6.0 of 10

    The all-line transverse shift makes four-point electromagnetic and gravitational Compton amplitudes on-shell constructible for massive spin s≤3/2 and s≤5/2, respectively, starting from minimal three-point amplitudes.

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