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A Rastall Scalar-Tensor theory

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arxiv 1503.04882 v1 pith:YEZACSBO submitted 2015-03-17 gr-qc astro-ph.COhep-th

T. Caramês , M.H. Daouda J.C. Fabris , A.M. Oliveira , O.F. Piattella , V. Strokov This is my paper
classification gr-qcastro-ph.COhep-th
keywords theoryrastallscalar-tensorsolutionbesidesbrans-dicke-rastallcombiningcompletely
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We formulate a theory combining the principles of a scalar-tensor gravity and the Rastall proposal of a violation of the usual conservation laws. In the resulting Brans-Dicke-Rastall (BDR) theory the only exact, static, spherically symmetric solution is a Robinson-Bertotti type solution besides the trivial Schwarzschild one. The PPN constraints can be completely satisfied for some values of the free parameters.The cosmological solutions display, among others, a decelerate-accelerate transition in the matter dominated phase.

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