Structure formation constraints on the Jordan-Brans-Dicke theory

Acquaviva, Viviana, Baccigalupi, Carlo, Leach, Samuel M, Liddle, Andrew R and Perrotta, Francesca (2005) Structure formation constraints on the Jordan-Brans-Dicke theory. Physical Review D, 71 (10). pp. 1040251-1040256. ISSN 0556-2821

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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 ξ=1/4ω, and performing an exploration in the range lnξ∈[−9,3], we obtain a 95% marginalized probability bound of lnξ<−6.2, corresponding to a 95% marginalized probability lower bound on the Brans-Dicke parameter ω>120.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Andrew Liddle
Date Deposited: 06 Feb 2012 18:35
Last Modified: 06 Aug 2019 11:22

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