Scalar-tensor theories of gravity, neutrino physics, and the H0 tension

We use Planck 2018 data to constrain the simplest models of scalar-tensor theories characterized by a coupling to the Ricci scalar of the type F(σ)R with F(σ)=Npl2+ξσ2. We update our results with previous Planck and BAO data releases obtaining the tightest constraints to date on the coupling paramet...

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Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2020-10, Vol.2020 (10)
Main Authors: Ballardini, Mario, Braglia, Matteo, Finelli, Fabio, Paoletti, Daniela, Starobinsky, Alexei A, Umiltà, Caterina
Format: Article
Language:eng ; jpn
Subjects:
Coupling
Dynamic models
Gravitation
Neutrinos
Physics
Radiation
Tensors
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Summary:We use Planck 2018 data to constrain the simplest models of scalar-tensor theories characterized by a coupling to the Ricci scalar of the type F(σ)R with F(σ)=Npl2+ξσ2. We update our results with previous Planck and BAO data releases obtaining the tightest constraints to date on the coupling parameters, that is ξ
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2020/10/044