Results of DWBA analysis for (6Li,d) and (α,p) reaction in respect of primordial nuclear synthesis. Some related topics to nuclear astrophysics and cosmology

Spectroscopic informations of 24Mg(6Li,d)28Si reaction and 7Li(α,p)10Be are reported here, using SF-cyclotron facility at I.N.S. university of Tokyo. Momentum spectrum of 24Mg(6Li,d)28Si and 7Li(α,p)10Be was analysed by QDD spectrograph. Angular distributions of reaction cross-section were compared with theoretical DWBA curves. Two significant levels as for low energy nuclear synthesis reaction 3He+7Li beyond the threshold energy of 10Be were reconfirmed as 2- state. Another result of DWBA analysis for (6Li,d) reaction to the ground state and the first excited state of 28Si was intensively investigated in terms of the Exact Finite Range DWBA. The authors suggest that this reaction is very important concerted to breakup of 6Li → α+d, and it's coupling with shape-deformation of target and residual nuclei. Possible interpretation of this effect in the frame work of EFR-DWBA is here reported. (author)