Improved Results on Extraction of [sup 11]b(p, Α[sub 0])[sup 8]be and [sup 10]b(p, Α)[sup 7]be S(E)-Factor Through the Trojan Horse Method

In this work the analysis of the B-10(p,alpha)Be-7 and B-11(p,alpha)Be-8 reactions, studied via the indirect Trojan Horse Method (THM), is discussed. In the astrophysical context of light nuclei LiBeB depletion, the above mentioned reactions are the main responsible for the destruction of boron in the stellar interior. The TI-IM application allows their investigation in the astrophysically relevant energy region, around the Gamow Peak (approximate to 10 keV), overcoming the problems due to the presence of the Coulomb barrier and electron screening effect. The experimental procedure and the preliminary results are shown.