Non-universal scalar-tensor theories and big bang nucleosynthesis

Abstract

We investigate the constraints that can be set from big-bang nucleosynthesis on two classes of models: extended quintessence and scalar-tensor theories of gravity in which the equivalence principle between standard matter and dark matter is violated. In the latter case, and for a massless dilaton with quadratic couplings, the phase space of theories is investigated. We delineate those theories where attraction toward general relativity occurs. It is shown that big-bang nucleosynthesis sets more stringent constraints than those obtained from Solar system tests.

28 pages, 20 figures

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Cited by in corpus (31)

• Dark Energy
• Varying constants, Gravitation and Cosmology
• The Primordial Lithium Problem
• Precision big bang nucleosynthesis with improved Helium-4 predictions
• Observational evidence for a broken Li Spite plateau and mass-dependent Li depletion
• Variable gravity Universe
• Primordial nucleosynthesis
• The cosmic microwave background bispectrum from the non-linear evolution of the cosmological perturbations
• Constraining dark energy with gamma-ray bursts
• Constraining cosmic scatter in the Galactic halo through a differential analysis of metal-poor stars
• The solar, exoplanet and cosmological lithium problems
• The variation of fundamental constants and the role of A=5 and A=8 nuclei on primordial nucleosynthesis
• Tests of General Relativity on Astrophysical Scales
• The Wall of Fundamental Constants
• The minimally extended Varying Speed of Light (meVSL)
• Solar System Constraints on Scalar-Tensor Gravity with Positive Coupling Constant upon Cosmological Evolution of the Scalar Field
• Quantum Corrections to the Cosmological Evolution of Conformally Coupled Fields
• Implications of a Scalar Dark Force for Terrestrial Experiments
• BBN constraints on universally-coupled ultralight scalar dark matter
• Mirror matter can alleviate the cosmological lithium problem
• Dark matter relic density in scalar-tensor gravity revisited
• Hubble tension as a window on the gravitation of the dark matter sector
• Complete density perturbations in the Jordan-Fierz-Brans-Dicke theory
• Hubble tension as a window on the gravitation of the dark matter sector: Exploration of a family of models
• Constraints on scalar-tensor theories of gravity from observations
• Backreaction mechanism in multifluid and extended cosmologies
• Non-minimal scalar-tensor theories
• Primordial Nucleosynthesis
• Observational signatures for depletion in the Spite plateau: solving the cosmological Li discrepancy?
• Conformal Frame dependence on Cosmological Observations in Scalar-Tensor Theories of Gravity
• Big Bang nucleosynthesis and baryogenesis in power-law $f(R)$ gravity: Revised constraints from the semianalytical approach