Higher-Spin Modes in a Domain-Wall Universe

Abstract

We find a consistent set of equations of motion and constraints for massive higher-spin fluctuations in a gravitational background, required of certain characteristic properties but more general than constant curvature space. Of particular interest among such geometries is a thick domain wall--a smooth version of the Randall-Sundrum metric. Apart from the graviton zero mode, the brane accommodates quasi-bound massive states of higher spin contingent on the bulk mass. We estimate the mass and lifetime of these higher-spin resonances, which may appear as metastable dark matter in a braneworld universe.

minor changes made, to appear in JHEP

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Cited by in corpus (2)

• Mixed-symmetry fields in AdS(5), conformal fields, and AdS/CFT
• Lagrangian formulation of massive fermionic higher spin fields on a constant electromagnetic background