Big bang nucleosynthesis constraints on scalar-tensor theories of gravity
Journal Article
·
· Physical Review. D, Particles Fields
- Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, IN2P3/CNRS/UPS, Batiment 104, 91405 0rsay Campus (France)
We investigate Big bang nucleosynthesis (BBN) in scalar-tensor theories of gravity with arbitrary matter couplings and self-interaction potentials. We first consider the case of a massless dilaton with a quadratic coupling to matter. We perform a full numerical integration of the evolution of the scalar field and compute the resulting light element abundances. We demonstrate in detail the importance of particle mass thresholds on the evolution of the scalar field in a radiation dominated universe. We also consider the simplest extension of this model including a cosmological constant in either the Jordan or Einstein frame.
- OSTI ID:
- 20782896
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 73; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nonuniversal scalar-tensor theories and big bang nucleosynthesis
Big-Bang Nucleosynthesis: lithium problems and scalar-tensor theories of gravity
Dark matter relic density in scalar-tensor gravity revisited
Journal Article
·
Fri May 15 00:00:00 EDT 2009
· Physical Review. D, Particles Fields
·
OSTI ID:21296317
Big-Bang Nucleosynthesis: lithium problems and scalar-tensor theories of gravity
Journal Article
·
Wed Jul 12 00:00:00 EDT 2006
· AIP Conference Proceedings
·
OSTI ID:20877433
Dark matter relic density in scalar-tensor gravity revisited
Journal Article
·
Mon Nov 30 23:00:00 EST 2015
· Journal of Cosmology and Astroparticle Physics
·
OSTI ID:22525144