Angular Anisotropy of the ~3H(d, α)n Reaction at Deuteron Energies Below 200 keV

摘要

The angular distributions of α particles emitted from the ~3H(d, α)n reaction were measured at 7.5° intervals from 60° to 165° for incoming deuteron energies of 100, 150, and 200 keV using 50 and 80 μg/cm~2 thick TiT targets. The overall uncertainty of 0.16% of the data made it possible to determine Legendre-polynomial coefficients up to L = 2. The results are compared with an R-matrix parameterization. The measured angular anisotropies present the first experimental evidence of D-wave contributions to the cross section in the vicinity of the J~π = (3/2)~+ S-wave resonance in ~5He.