Investigation of the Angular Correlation in theC12(p,2p)B11Reaction at 45.5 MeV

The angular-correlation and energy distributions of the protons emitted from the ${\mathrm{C}}^{12}\mathrm{}(p,2p)\mathrm{}{\mathrm{B}}^{11}$ reaction at 45.5 MeV were measured with an absolute uncertainty of 10% and an angular resolution of ±2.5°. The data are compared with computer calculations based on a parameter study of the distorted-wave $t$-matrix approximation theory. Excellent agreement is obtained provided either the optical-model potential or the nuclear size is overestimated.