Supernova, baryon acoustic oscillations, and CMB surface distance constraints on f(G) higher order gravity models

Jacob Moldenhauer, Mustapha Ishak, John Thompson, Damien Easson

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

We consider recently proposed higher-order gravity models where the action is built from the Einstein-Hilbert action plus a function f(G) of the Gauss-Bonnet invariant. The models were previously shown to pass physical acceptability conditions as well as solar system tests. In this paper, we compare the models to combined data sets of supernovae, baryon acoustic oscillations, and constraints from the CMB surface of last scattering. We find that the models provide fits to the data that are close to those of the lambda cold dark matter concordance model. The results provide a pool of higher-order gravity models that pass these tests and need to be compared to constraints from large scale structure and full CMB analysis.

Original languageEnglish (US)
Article number063514
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume81
Issue number6
DOIs
StatePublished - Mar 11 2010

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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