A statistical study is made of 1131 ${}_{}{}^4{}_{}{}^{}\mathrm{He}\mathrm{}(p,p)\mathrm{}{}_{}{}^4{}_{}{}^{}\mathrm{He}$ scattering data from 91 experiments in the range 0 to 18 MeV. A goodness-of-fit test is made comparing the 91 data subsets to the $R$-matrix predictions of Dodder et al., who use these data. The result is generally satisfactory indicating a proper random fluctuation of the experimental data sets; however, there is some evidence of an overestimation of errors in several experiments.

NUCLEAR REACTIONS ${}_{}{}^4{}_{}{}^{}\mathrm{He}\mathrm{}(p,p)\mathrm{}$, 0 to 18 MeV, statistical study of $R$-matrix analysis.

• Received 16 May 1977

DOI:https://doi.org/10.1103/PhysRevC.16.2090