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  Cubic-interaction-induced deformations of higher-spin symmetries

Joung, E., & Taronna, M. (2014). Cubic-interaction-induced deformations of higher-spin symmetries. Journal of High Energy Physics, 2014(03): 103. doi:10.1007/JHEP03(2014)103.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-A90E-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-001A-2382-E
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 Creators:
Joung, Euihun, Author
Taronna, Massimo1, Author              
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Theory, hep-th,Mathematical Physics, math-ph,Mathematics, Mathematical Physics, math.MP
 Abstract: The deformations of higher-spin symmetries induced by cubic interactions of symmetric massless bosonic fields are analyzed within the metric-like formalism. Our analysis amends the existing classification according to gauge-algebra deformations taking into account also gauge-transformation deformations. In particular, we identify a class of couplings which leave the gauge algebra Abelian but deform one (out of three) gauge transformation, and another class of couplings which deform all three gauge transformations in (A)dS but only two in the flat-space limit. The former class is related to higher-spin algebra multiplets (representations of the global algebra) together with the massless-massive-massive couplings, which we also briefly discuss. The latter class is what makes (A)dS a distinguished background for higher-spin interactions and includes in particular the gravitational interactions of higher-spin fields, retrospectively accounting for the Fradkin-Vasiliev solution to the Aragon-Deser problem. We also study the restriction of gauge symmetries to global symmetries (higher-spin algebra) discussing the invariant bilinear form and the cyclicity of the structure constants. A possible generalization of the analysis to partially-massless fields is also commented.

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 Dates: 2013-11-012014
 Publication Status: Published in print
 Pages: 38 pages, 1 figure, LaTex
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 Identifiers: arXiv: 1311.0242
DOI: 10.1007/JHEP03(2014)103
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Title: Journal of High Energy Physics
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Pages: - Volume / Issue: 2014 (03) Sequence Number: 103 Start / End Page: - Identifier: -