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Article
Report number	arXiv:1806.10016 ; CERN-TH-2018-144 ; MPP-2018-142 ; LMU-ASC 39/18 ; LMU-ASC-39-18
Title	Aspects of Weyl Supergravity
Author(s)	Ferrara, Sergio (CERN ; Frascati ; UCLA) ; Kehagias, Alex (Natl. Tech. U., Athens) ; Lüst, Dieter (CERN ; Munich U., ASC ; Munich, Max Planck Inst.)
Publication	2018-08-31
Imprint	2018-06-26
Number of pages	22
Note	23 pages, Replaced version agrees with published version in JHEP
In:	JHEP 08 (2018) 197
DOI	10.1007/JHEP08(2018)197
Subject category	hep-th ; Particle Physics - Theory
Abstract	In this paper we study the spectrum of all conformal, ${\cal N}$-extended supergravities (${\cal N}=1,2,3,4$) in four space-time dimensions. When these theories are obtained as massless limit of Einstein plus Weyl$^2$supergravity, the appropriate counting of the enhanced gauge symmetries allow us to derive the massless spectrum which consist of a dipole ghost graviton multiplet, a ${\cal N}$-fold tripole ghost gravitino, the third state belonging to a spin 3/2 multiplet and a residual vector multiplet present for non-maximal ${\cal N}<4$ theories. These theories are not expected to have a standard gravity holographic dual in five dimensions.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0)

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