Parametrized post-Newtonian limit of fourth order gravity inspired by scalar-tensor gravity
Salvatore CapozzıelloDipartimento di Scienze Fisiche, Università di Napoli “Federico II”, INFN, Sez. di Napoli, Compl. Univ. di Monte S.Angelo, Edificio G, Via Cinthia, I-80126, Napoli, ItalyA. TroisiDipartimento di Fisica “E.R. Caianiello”, Università di Salerno, INFN, Sez. di Napoli, Gruppo Collegato di Salerno, Via S. Allende, I-84081, Baronissi (SA), Italy
2005en
ABI
Abstract
Based on the dynamical equivalence between higher order gravity and scalar-tensor gravity the parametrized post-Newtonian (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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Cited by 20 references