Determination of the 3He+alpha\to 7Be asymp. normalization coefficients (nucl. vertex constants) and their application for extrapolation of the 3He(alpha,gamma)7Be astroph. S-factors to the solar energy region

S. B. Igamov, K. I. Tursunmakhatov, R. Yarmukhamedov

A new analysis of the precise experimental astrophysical $S$-factors for the direct capture ${}^{3}He(\alpha ,\gamma {)}^7\mathrm{Be}$ reaction [B.S. Nara Singh et al., Phys.Rev.Lett. {\bf 93} (2004)…