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Synthesis of CNO elements in standard BBN

We perform an analysis of the CNO elements production in a standard big bang nucleosynthesis (BBN) scenario. The goal is to provide a sound estimate on the very low but yet poorly explored abundance of such elements (with critical importance in Population III Stars). We examine the synthesis channels for these elements in the Wagoner-Kawano code (already critically revised and updated in recent analysis); in light of the findings on CNO elements productions in BBN we add 4 nuclides and more than 200 reactions to the existing network; our results show no major discrepancies with the ones from smaller nuclear network. The robustness of the standard BBN predictions—Population III Stars were metal-free—is confirmed.