Valerio Faraoni 2009 Class. Quantum Grav. 26 145014 doi:10.1088/0264-9381/26/14/145014
Valerio Faraoni
Show affiliationsThe notions of mass and range of a Brans–Dicke-like scalar field in scalar–tensor and f(R) gravity are subject to an ambiguity that hides a potential trap. We spell out this ambiguity and identify a physically meaningful and practical definition for these quantities. This is relevant when giving a mass to this scalar in order to circumvent experimental limits on the PPN parameters coming from solar system experiments.
04.50.-h Higher-dimensional gravity and other theories of gravity
Issue 14 (21 July 2009)
Received 22 March 2009, in final form 2 June 2009
Published 29 June 2009
Valerio Faraoni 2009 Class. Quantum Grav. 26 145014
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