Year: 2017
Type: article
Abstract: We use Big Bang Nucleosynthesis (BBN) observational data on the primordial abundance of light elements to constrain f ( T ) gravity. The three most studied viable f ( T ) models, namely the power law, the exponential and the square-root exponential are considered, and the BBN bounds are adopted in order to extract constraints on their free parameters. For the power-law model, we find that the constraints are in agreement with those obtained using late-time cosmological data. For the exponential and the square-root exponential models, we show that for reliable regions of parameters space they always satisfy the BBN bounds. We conclude that viable f ( T ) models can successfully satisfy the BBN constraints.
Source: The European Physical Journal C
Authors: S. Capozziello, G. Lambiase, E. N. Saridakis
Institutions: Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Gran Sasso Science Institute, University of Naples Federico II, University of Salerno, Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Salerno, Baylor University, National Technical University of Athens
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2592749701