(d, α) Reactions on Some Light Nuclei

抄録

Angular distributions of the emergent alpha particles from the reactions O¹⁶(d, α₀)N¹⁴(g’nd.), N¹⁴(d, α₀)C¹²(g’nd.), N¹⁴(d, α₁)C^12*(4.44 Mev state), F¹⁹(d, α₀)O¹⁷(g’nd.), F¹⁹(d, α₁)O^17*(0.872 Mev state) and P³¹(d, α₀)Si²⁹(g’nd) were investigated at several bombarding energies in the region from 10.3 Mev to 11.4 Mev. The distributions which cover the angular range between approximately 25° and 160° in the center-of-mass system, exhibit generally oscillatory and forward peaking behavior.
The intensity of the transition to the 2.31 Mev (T=1) state of N¹⁴ was measured in the range from 10.5 to 11.4 Mev in the step of 100 keV interval by aluminum absorber. The alpha particles from the targets were detected by a thin CsI(Tl) crystal scintillation spectrometer.
The experimental results were compared with the theoretical curves calculated by simplified direct-interaction model of Butler and the model which includes heavy particle stripping process. The attempts to fit some data were also made by using an approximate expression derived by Newns for double stripping process.