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This is a Quantitative Study study.

October 3, 2025Open Access

Massless higher-spin supermultiplets in 5D harmonic superspace

Key Points

Off-shell actions are constructed for massless higher-spin supermultiplets in five dimensions.
Cubic couplings involving the supermultiplets and $q$-hypermultiplet provide new insights into their interactions.
A detailed derivation of the unconstrained prepotential for the 5D Weyl supermultiplet is included.
These findings enrich the understanding of $ ext{N}=1$ supergravity-matter systems in 5D.

Abstract

Off-shell actions for massless higher-spin N=1 supermultiplets in five dimensions (5D) are constructed in harmonic superspace in terms of unconstrained prepotentials. Cubic couplings of these supermultiplets to the q-hypermultiplet are derived. We also provide a detailed derivation of the unconstrained prepotential for the 5D Weyl supermultiplet which has been used within the conformal superspace approach to N=1 supergravity-matter systems.

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Cite This Study

Buchbinder et al. (Mon,) studied this question.

synapsesocial.com/papers/68e02f40f0e39f13e7fa2815 https://doi.org/https://doi.org/10.48550/arxiv.2509.06604

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