Theoretical studies of proton capture reactions in A～25 proton-rich nuclei

• 出 处: Science in China(Series G:Physics,Mechanics & Astronomy)
• 发表日期: 2004年期
• 关键词: capture proton nuclei reproduce nucleus resonant lying stellar Hartree halos

The direct proton capture and resonance proton capture properties of stellar reactions 22Mg(p,γ)23Al and 26Si(p,γ)27P are studied by employing a mean-field potential obtained from the Skyrme-Hartree-Fock(SHF) model.Calculations with the SHF potential reproduce well the loosely-bound structure of the ground states as well as the widths of the resonant states in these nuclei.With the obtained potential we estimate the reaction rates of direct proton capture and resonance proton capture to nuclei 23Al and 27P.The effect of the 27P loosely-bound structure on the S factor of the direct proton capture is also discussed.

The direct proton capture and resonance proton capture properties of stellar reactions 22Mg (p, γ) 23Al and 26Si (p, γ) 27P are studied by employing a mean-field potential obtained from the Skyrme-Hartree-Fock (SHF) model. Calculations with the SHF potential reproduce well the loosely-bound structure of the ground states as well as the widths of the resonant states in these nuclei.With the obtained potential we estimate the reaction rates of direct proton capture and resonance proton capture to nuclei 23Al and 27P The effect of the 27P loosely-bound structure on the S factor of the direct proton capture is also discussed.