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<p>The energies and decay properties of the ground and lower excited levels of the <sup>9</sup>C nucleus have been calculated with the no-core shell model using the cluster channel orthogonal function method we have developed. Using these data, the cross sections for the <sup>8</sup>B(<i>p</i>, γ)<sup>9</sup>C radiative capture have been calculated and the astrophysical <i>S</i> factor has been analyzed in a wide range of collision energies. A strong dependence of the <i>S</i> factor at zero energy on positive parity levels in the spectrum of the <sup>9</sup>C nucleus has been demonstrated.</p>

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Ab Initio Analysis of the Astrophysical S Factor of the Radiative Capture of a Proton by a 8B Nucleus

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月1日

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  • D. M. Rodkin,
  • Yu. M. Tchuvil’sky

摘要

The energies and decay properties of the ground and lower excited levels of the 9C nucleus have been calculated with the no-core shell model using the cluster channel orthogonal function method we have developed. Using these data, the cross sections for the 8B(p, γ)9C radiative capture have been calculated and the astrophysical S factor has been analyzed in a wide range of collision energies. A strong dependence of the S factor at zero energy on positive parity levels in the spectrum of the 9C nucleus has been demonstrated.