The Nuclear Reactions in Standard BBN
Abstract
Nowadays, the Cosmic Microwave Background (CMB) anisotropies studies accurately determine the baryon fraction omega_b, showing an overall and striking agreement with previous determinations of omega_b obtained from Big Bang Nucleosynthesis (BBN). However, a deeper comparison of BBN predictions with the determinations of the primordial light nuclides abundances shows slight tensions, motivating an effort to further improve the accuracy of theoretical predictions, as well as to better evaluate systematics in both observations and nuclear reactions measurements. We present some results of an important step towards an increasing precision of BBN predictions, namely an updated and critical review of the nuclear network, and a new protocol to perform the nuclear data regression.
Cite
@article{arxiv.nucl-th/0407051,
title = {The Nuclear Reactions in Standard BBN},
author = {Pasquale D. Serpico},
journal= {arXiv preprint arXiv:nucl-th/0407051},
year = {2009}
}
Comments
4 pp.,4figs. Few typos corrected and updated refs. to match the version appearing in the proceedings of Conference ``Nuclei in the Cosmos VIII'', Vancouver, BC, Canada, 19-23 Jul 2004, published in Nucl. Phys. A