Spin-triplet transitions in (γ,p) and (γ,n) reactions of two-body ⁴He disintegration by photons of energies below 80 MeV

Abstract

The simultaneous least-square fit of expressions for differential cross-sections and asymmetry to the experimental data on dσ/dΩ and Σ(θ), obtained at NSC KIPT, was realized. A set of three bilinear equations with three unknown amplitude modules | ³P₁ | E1, | ³S₁ | M1 and | ³D₁ | M1 was derived; preliminary data about the magnitudes of these amplitude modules were obtained. It is shown that the ³D₁ М1 am­p­li­tu­de is the highest in magnitude.