Key points are not available for this paper at this time.
We use cosmic microwave background data from WMAP, ACBAR, VSA and CBI, and galaxy power spectrum data from 2dF, to constrain flat cosmologies based on the Jordan-Brans-Dicke theory, using a Markov chain Monte Carlo approach. Using a parametrization based on =1/4, and performing an exploration in the range ln-9, 3, we obtain a 95% marginalized probability bound of ln120.
Acquaviva et al. (2005) studied this question.