Modified Gravity Explains Dark Matter?
arXiv:1610.01016 · doi:10.1103/PhysRevD.95.044040
Abstract
We explore a new horizon of modified gravity from the viewpoint of the particle physics. As a concrete example, we take the gravity to raise a question: can a scalar particle ("scalaron") derived from the gravity be a dark matter candidate? We place the limit on the parameter in a class of gravity model from the constraint on the scalaron as a dark matter. The role of the screening mechanism and compatibility with the dark energy problem are addressed.
11 pages, 3 figures, version accepted in PRD
References in corpus (8)
- Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
- Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
- Disappearing cosmological constant in f(R) gravity
- Beyond the Cosmological Standard Model
- Heavy spin-2 Dark Matter
- Scalaron the mighty: producing dark matter and baryon asymmetry at reheating