Towards N $$ \mathcal{N} $$ = 2 superconformal higher-spin theory

Abstract Three years ago, we proposed free off-shell models for N $$ \mathcal{N} $$ = 2 superconformal higher-spin multiplets in arbitrary conformally flat backgrounds, constructed conserved conformal higher-spin supercurrents for a massless hypermultiplet, and sketched the Noether procedure to gene...

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Main Authors: Sergei M. Kuzenko, Emmanouil S. N. Raptakis
Format: Article
Language:English
Published: SpringerOpen 2024-11-01
Series:Journal of High Energy Physics
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Online Access:https://doi.org/10.1007/JHEP11(2024)013
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author Sergei M. Kuzenko
Emmanouil S. N. Raptakis
author_facet Sergei M. Kuzenko
Emmanouil S. N. Raptakis
author_sort Sergei M. Kuzenko
collection DOAJ
description Abstract Three years ago, we proposed free off-shell models for N $$ \mathcal{N} $$ = 2 superconformal higher-spin multiplets in arbitrary conformally flat backgrounds, constructed conserved conformal higher-spin supercurrents for a massless hypermultiplet, and sketched the Noether procedure to generate its cubic couplings to the superconformal higher-spin multiplets. This paper is devoted to completing the Noether procedure. Specifically, we: (i) describe the unique off-shell primary extensions of the conformal higher-spin supercurrents; (ii) embed the off-shell superconformal prepotentials into primary unconstrained isotwistor multiplets; and (iii) present the unique gauge transformations of the hypermultiplet and the isotwistor prepotentials. An extension of the Noether procedure beyond the cubic level is also sketched, following the earlier N $$ \mathcal{N} $$ = 1 superconformal approach developed by the authors and Ponds in 2022. Our construction is based on making use of the polar hypermultiplet within the projective-superspace setting.
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spelling doaj-art-94b65156eb0c4f1aafb50d39c5314c2f2024-12-08T12:09:30ZengSpringerOpenJournal of High Energy Physics1029-84792024-11-0120241112710.1007/JHEP11(2024)013Towards N $$ \mathcal{N} $$ = 2 superconformal higher-spin theorySergei M. Kuzenko0Emmanouil S. N. Raptakis1Department of Physics M013, The University of Western AustraliaDepartment of Physics M013, The University of Western AustraliaAbstract Three years ago, we proposed free off-shell models for N $$ \mathcal{N} $$ = 2 superconformal higher-spin multiplets in arbitrary conformally flat backgrounds, constructed conserved conformal higher-spin supercurrents for a massless hypermultiplet, and sketched the Noether procedure to generate its cubic couplings to the superconformal higher-spin multiplets. This paper is devoted to completing the Noether procedure. Specifically, we: (i) describe the unique off-shell primary extensions of the conformal higher-spin supercurrents; (ii) embed the off-shell superconformal prepotentials into primary unconstrained isotwistor multiplets; and (iii) present the unique gauge transformations of the hypermultiplet and the isotwistor prepotentials. An extension of the Noether procedure beyond the cubic level is also sketched, following the earlier N $$ \mathcal{N} $$ = 1 superconformal approach developed by the authors and Ponds in 2022. Our construction is based on making use of the polar hypermultiplet within the projective-superspace setting.https://doi.org/10.1007/JHEP11(2024)013Extended SupersymmetryHigher Spin GravityScale and Conformal SymmetriesSuperspaces
spellingShingle Sergei M. Kuzenko
Emmanouil S. N. Raptakis
Towards N $$ \mathcal{N} $$ = 2 superconformal higher-spin theory
Journal of High Energy Physics
Extended Supersymmetry
Higher Spin Gravity
Scale and Conformal Symmetries
Superspaces
title Towards N $$ \mathcal{N} $$ = 2 superconformal higher-spin theory
title_full Towards N $$ \mathcal{N} $$ = 2 superconformal higher-spin theory
title_fullStr Towards N $$ \mathcal{N} $$ = 2 superconformal higher-spin theory
title_full_unstemmed Towards N $$ \mathcal{N} $$ = 2 superconformal higher-spin theory
title_short Towards N $$ \mathcal{N} $$ = 2 superconformal higher-spin theory
title_sort towards n mathcal n 2 superconformal higher spin theory
topic Extended Supersymmetry
Higher Spin Gravity
Scale and Conformal Symmetries
Superspaces
url https://doi.org/10.1007/JHEP11(2024)013
work_keys_str_mv AT sergeimkuzenko towardsnmathcaln2superconformalhigherspintheory
AT emmanouilsnraptakis towardsnmathcaln2superconformalhigherspintheory