Abstract
The astrophysical factor of ${}^{8}$B($p$,$\ensuremath{\gamma}$)${}^{9}$C at zero energy, ${S}_{18}(0)$, is determined from three-body model analysis of ${}^{9}$C breakup processes. The elastic breakup reaction ${}^{208}$Pb(${}^{9}$C,$p{}^{8}$B)${}^{208}$Pb at 65 MeV/nucleon and the one-proton removal reaction of ${}^{9}$C at 285 MeV/nucleon on C and Al targets are calculated with the continuum-discretized coupled-channels method (CDCC) and the eikonal reaction theory (ERT), respectively. The asymptotic normalization coefficient (ANC) of ${}^{9}$C in the $p$-${}^{8}$B configuration, ${C}_{p{}^{8}\text{B}}^{{}^{9}\text{C}}$, extracted from the two reactions shows good consistency, unlike in previous studies. As a result of the present analysis, ${S}_{18}(0)=66\ifmmode\pm\else\textpm\fi{}10\phantom{\rule{0.28em}{0ex}}\mathrm{eVb}$ is obtained.
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