A nuclear structure solution to the cosmological 7Li problem?

OSVALDO CIVITARESE; M. MOSQUERA

NUCLEAR PHYSICS A

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2013 vol. 898 p. 1 - 13

0375-9474

In this work, we study the cosmological 7 Li problem from a nuclear structure point of view, by including resonances in the reactions which populate beryllium. The calculation of primordial abundances is performed by solving the balance equations semi-analytically. It is found that the primordial abundance of lithium is indeed reduced, as a consequence of the presence of resonant channels in the relevant cross sections. We set limits on the resonant energy for each reaction relevant for the chain leading to 7 Li, by performing a statistical analysis of the available observational data.