Dynamics of test bodies in scalar-tensor theory and equivalence principle

  title={Dynamics of test bodies in scalar-tensor theory and equivalence principle},
  author={Yuri N. Obukhov and Dirk Puetzfeld},
  journal={arXiv: General Relativity and Quantum Cosmology},
How do test bodies move in scalar-tensor theories of gravitation? We provide an answer to this question on the basis of a unified multipolar scheme. In particular, we give the explicit equations of motion for pointlike, as well as spinning test bodies, thus extending the well-known general relativistic results of Mathisson, Papapetrou, and Dixon to scalar-tensor theories of gravity. We demonstrate the validity of the equivalence principle for test bodies. 


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Nuovo Cimento