paper

Gauge Invariant Lagrangian Formulations for Mixed Symmetry Higher Spin Bosonic Fields in AdS Spaces

arXiv:2305.00142 · doi:10.3390/universe9120495

Abstract

We deduce a non-linear commutator higher-spin (HS) symmetry algebra which encodes unitary irreducible representations of the AdS group -- subject to a Young tableaux with rows -- in a -dimensional anti-de-Sitter space. Auxiliary representations for a deformed non-linear HS symmetry algebra in terms of a generalized Verma module, as applied to additively convert a subsystem of second-class constraints in the HS symmetry algebra into one with first-class constraints, are found explicitly in the case of a Young tableaux. An oscillator realization over the Heisenberg algebra for the Verma module is constructed. The results generalize the method of constructing auxiliary representations for the symplectic algebra used for mixed-symmetry HS fields in flat spaces \cite{BRbos}. Polynomial deformations of the algebra related to the Bethe ansatz are studied as a by-product. A nilpotent BRST operator for a non-linear HS symmetry algebra of the converted constraints for is found, with non-vanishing terms (resolving the Jacobi identities) of third order in powers of ghost coordinates. A gauge-invariant unconstrained reducible Lagrangian formulation for a free bosonic HS field of generalized spin is deduced. Following the results of \cite{BuchbinderReshetnyak, BRmasscub}, we develop a BRST approach to constructing general off-shell local cubic interaction vertices for irreducible massive higher-spin fields (being candidates for massive particles in the Dark Matter problem). A new reducible gauge-invariant Lagrangian formulation for an antisymmetric massive tensor field of spin is obtained.

71 pages, 1 figure, presentation clarified and improved, relation to Cosmology and 11 references added; elaborated and developed conference paper [arXiv:1111.5516[hep-th]], published version in Universe

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