Disformally self-tuning gravity

Emond, William T.; Saffin, Paul M.

Abstract

We extend a previous self-tuning analysis of the most general scalar-tensor theory of gravity in four dimensions with second order field equations by considering a generalized coupling to the matter sector. Through allowing a disformal coupling to matter we are able to extend the Fab Four model and construct a new class of theories that are able to tune away the cosmological constant on Friedmann-Lemaitre-Robertson-Walker backgrounds.

Citation

Emond, W. T., & Saffin, P. M. (in press). Disformally self-tuning gravity. Journal of High Energy Physics, 2016(3), https://doi.org/10.1007/JHEP03%282016%29161

• Journal Article Type: Article
• Acceptance Date: Mar 14, 2016
• Online Publication Date: Mar 23, 2016
• Deposit Date: Apr 24, 2017
• Publicly Available Date: Apr 24, 2017
• Journal: Journal of High Energy Physics
• Electronic ISSN: 1029-8479
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 2016
• Issue: 3
• DOI: https://doi.org/10.1007/JHEP03%282016%29161
• Keywords: Classical Theories of Gravity, Cosmology of Theories beyond the SM
• Public URL: https://nottingham-repository.worktribe.com/output/779407
• Publisher URL: https://link.springer.com/article/10.1007%2FJHEP03%282016%29161