Open AccessTHE <sup>2</sup>H(α, γ)<sup>6</sup>LI REACTION AT LUNA AND BIG BANG NUCLEOSYNTHETIS
Author(s) -
C. Gustavino
Publication year - 2013
Publication title -
acta polytechnica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.207
H-Index - 15
eISSN - 1805-2363
pISSN - 1210-2709
DOI - 10.14311/ap.2013.53.0534
Subject(s) - big bang nucleosynthesis , physics , nucleosynthesis , isotopes of lithium , nuclear reaction , nuclear physics , ion , ion exchange , quantum mechanics
The 2 H(α, γ) 6 Li reaction is the leading process for the production of 6 Li in standard Big Bang Nucleosynthesis. Recent observations of lithium abundance in metal-poor halo stars suggest that there might be a 6Li plateau, similar to the well-known Spite plateau of 7 Li. This calls for a re-investigation of the standard production channel for 6 Li. As the 2 H(α, γ) 6 Li cross section drops steeply at low energy, it has never before been studied directly at Big Bang energies. For the first time the reaction has been studied directly at Big Bang energies at the LUNA accelerator. The preliminary data and their implications for Big Bang nucleosynthesis and the purported 6 Li problem will be shown.