Newly developed semi-empirical formulas for (p, alpha) at 17.9 MeV and (p, np) at 22.3 MeV reaction cross-sections

作者：Tel Eyyup^*; Aydin Abdullah; Aydin E Gamze; Kaplan Abdullah; Yavas Oemer; Reyhancan Iskender A

来源：Pramana - Journal of Physics, 2010, 74(6): 931-943.

DOI：10.1007/s12043-010-0085-9

• (p, alpha) and (p, np) reaction cross-sections
• empirical formulas
• optical model
• pairing effect
• asymmetry term effect

In this study, we have investigated the asymmetry term effect for the (p, alpha) and (p, np) reaction cross-sections and obtained new coefficients for the (p, alpha) and (p, np) reaction cross-sections at 17.9 and 22.3 MeV energies. We have suggested semi-empirical formulas including the non-elastic effects of optical model found by fitting two parameters for proton-induced reactions. The coefficients were determined by least-square fitting method. The obtained cross-section formulas with new coefficients have been discussed and compared with the available experimental data.

• 出版日期2010-6