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<p>Off-shell actions for massless higher-spin <InlineEquation ID="IEq1"> <EquationSource Format="MATHML"><math display="inline"> <mi mathvariant="script">N</mi> <mo>=</mo> <mn>1</mn> </math></EquationSource> <EquationSource Format="TEX">\( \mathcal{N}=1 \)</EquationSource> </InlineEquation> supermultiplets in five dimensions (5D) are constructed in harmonic superspace in terms of unconstrained prepotentials. Cubic couplings of these supermultiplets to the <i>q</i>-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 <InlineEquation ID="IEq2"> <EquationSource Format="MATHML"><math display="inline"> <mi mathvariant="script">N</mi> <mo>=</mo> <mn>1</mn> </math></EquationSource> <EquationSource Format="TEX">\( \mathcal{N}=1 \)</EquationSource> </InlineEquation> supergravity-matter systems.</p>

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Massless higher-spin supermultiplets in 5D harmonic superspace

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月11日

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  • Evgeny I. Buchbinder,
  • Sergei M. Kuzenko,
  • Igor B. Samsonov

摘要

Off-shell actions for massless higher-spin N = 1 \( \mathcal{N}=1 \) 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 \( \mathcal{N}=1 \) supergravity-matter systems.