Figure 5.

(a) Measured azimuthal angular distributions for the 847-keV gamma rays. The black dots and red line represent experimental data and the simulated distributions, respectively. The normalization factors were applied into the simulation data before the cut of the polar scattering angle. The polar scattering angle was restricted to be ${40}^{\circ }\le \theta \le {120}^{\circ }$ both for experimental and simulated distributions. (b) Ratio between the experimental data and the simulated results.