We use BBN observational data on primordial abundance of 4He 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 acquired using late-time cosmological data. For the exponential and the square-root exponential models, we show that for realiable regions of parameters space they always satisfy the BBN bounds. We conclude that viable f(T) models can successfully satisfy the BBN constraints.
@article{arxiv.1702.07952,
title = {Constraining f(T) teleparallel gravity by Big Bang Nucleosynthesis},
author = {S. Capozziello and G. Lambiase and E. N. Saridakis},
journal= {arXiv preprint arXiv:1702.07952},
year = {2017}
}