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PPN-limit of Fourth Order Gravity inspired by Scalar-Tensor Gravity

S. Capozziello·A. Troisi
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Abstract

Based on the {\it dynamical} equivalence between higher order gravity and scalar-tensor gravity the PPN-limit of fourth order gravity is discussed. We exploit this analogy developing a fourth order gravity version of the Eddington PPN-parameters. As a result, Solar System experiments can be reconciled with higher order gravity, if physical constraints descending from experiments are fulfilled.

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S. Capozziello, A. Troisi. 2005-08-01. PPN-limit of Fourth Order Gravity inspired by Scalar-Tensor Gravity. https://doi.org/10.1103/physrevd.72.044022

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