Determination of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>8</mml:mn></mml:msup></mml:math>B(<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi></mml:math>)<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>9</mml:mn></mml:msup></mml:math>C reaction rate from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>9</mml:mn></mml:msup></mml:math>C breakup

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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.

Journal

  • Physical Review C

    Physical Review C 86 (2), 2012-08-30

    American Physical Society (APS)

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