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Publication details for Ruth Gregory
Charmousis, C., Gregory, R., Kaloper, N. & Padilla, A. (2006). DGP specteroscopy. Journal of High Energy Physics 2006(10): 066.- Publication type: Journal Article
- ISSN/ISBN: 1126-6708, 1029-8479
- DOI: 10.1088/1126-6708/2006/10/066
- Keywords: Large Extra Dimensions, Classical Theories of Gravity.
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
Abstract
We systematically explore the spectrum of gravitational perturbations in codimension-1 DGP braneworlds, and find a 4D ghost on the self-accelerating branch of solutions. The ghost appears for any value of the brane tension, although depending on the sign of the tension it is either the helicity-0 component of the lightest localized massive tensor of mass 01
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