S-Factor of the ^(3)H(α,γ)^(7)Li Reaction at Astrophysical Energies  

作　　者：H.Sadeghi 

机构地区：[1]Department of Physics,Faculty of Science,Arak University,Arak 8349-8-38156,Iran

出　　处：《Chinese Physics Letters》2013年第10期59-62,共4页中国物理快报（英文版）

摘　　要：The astrophysical S-factor forα-^(3)H radiative capture is calculated at astrophysical energies.We construct conserved two-and three-body electromagnetic currents,using minimal substitution in the explicit momentum dependence of the two-and three-nucleon interactions.The realistic Argonne v_(18) two-nucleon and Urbana IX or Tucson–Melbourne three-nucleon interactions are considered for calculation.By extrapolation of results for the astrophysical S-factor at zero energy,the energy in the order of 1 keV and less is found to be S(0)=0.107(0.112)keV·b,with(without)three-body interactions in satisfactory agreement with other theoretical results and experimental data.

关 键 词：CALCULATION SUBSTITUTION MOMENTUM 

分 类 号：O57[理学—粒子物理与原子核物理]