<p>The <sup>17</sup>O (p, γ)<sup>18</sup>F radiative capture reaction, a key driver of stellar nucleosynthesis, is comprehensively investigated at astrophysically relevant energies using a sophisticated theoretical approach. The Woods-Saxon potential model is employed to accurately deduce the cross-section for this reaction, which is essential for modeling hydrogen burning and isotope synthesis in stars. The calculated astrophysical S factor, a critical parameter for analyzing such reactions, exhibits excellent agreement with available experimental data and predictions from other models. Moreover, the electric dipole (E1) transition strength, governing the astrophysical S factor, is computed within the 0-500 keV energy range. Extrapolation of the S factor to zero center-of-mass energy yields a value of 4.807keV.b for the dominant E1 transition through the <sup>18</sup>F (1 excited state to the ground state (1<sup>+</sup>), consistent with previous studies. To investigate correlated transitions, calculations of S (0) values have been performed for excited state transitions, specifically from the (1<sup>−</sup>) state to the (2<sup>+</sup>) state, the 1<sup>−</sup>state to the 3<sup>+</sup> state, and the (1<sup>−</sup>) state to the 1<sup>+</sup> state. Additionally, S factor for E2 transitions have also been calculated. These results provide invaluable nuclear data inputs for modeling stellar nucleosynthesis processes.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Comprehensive Theoretical Study of the 17O (p, γ) 18F Radiative Capture Reaction at Astrophysical Energies

  • H. Khalili,
  • M. Dalvand

摘要

The 17O (p, γ)18F radiative capture reaction, a key driver of stellar nucleosynthesis, is comprehensively investigated at astrophysically relevant energies using a sophisticated theoretical approach. The Woods-Saxon potential model is employed to accurately deduce the cross-section for this reaction, which is essential for modeling hydrogen burning and isotope synthesis in stars. The calculated astrophysical S factor, a critical parameter for analyzing such reactions, exhibits excellent agreement with available experimental data and predictions from other models. Moreover, the electric dipole (E1) transition strength, governing the astrophysical S factor, is computed within the 0-500 keV energy range. Extrapolation of the S factor to zero center-of-mass energy yields a value of 4.807keV.b for the dominant E1 transition through the 18F (1 excited state to the ground state (1+), consistent with previous studies. To investigate correlated transitions, calculations of S (0) values have been performed for excited state transitions, specifically from the (1) state to the (2+) state, the 1state to the 3+ state, and the (1) state to the 1+ state. Additionally, S factor for E2 transitions have also been calculated. These results provide invaluable nuclear data inputs for modeling stellar nucleosynthesis processes.