Angular Distribution of 1- to 3.5-Mev Protons Scattered byHe4

Abstract

The angular distribution of protons scattered by ${\mathrm{He}}^4$ has been measured in the energy range from 1 to 3.5 Mev and over an angular range of 10° to 164° in the laboratory. The results are given as absolute cross sections per unit solid angle and show a broad resonance at approximately 2.2 Mev. The values for the cross sections are considered to be reliable to ±3 percent.