Correlations between high-energy gamma rays and light fragments in heavy ion collisions

Light fragments (H, ${}_{}{}^2{}_{}{}^{}\mathrm{H}$, and ${}_{}{}^3{}_{}{}^{}\mathrm{H}$) were detected in coincidence with high-energy ($E_{\gamma }>20\mathrm{}$ MeV) gamma rays from collisions of ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ on Zn at a beam energy of $\frac{E}{A}=40\mathrm{}$ MeV. The light fragment coincidence energy spectra and angular distributions were similar to those from inclusive measurements. The charged-particle fold distribution measured in coincidence with either gamma rays or with light fragments are nearly the same. These results suggest that high-energy gamma-ray production occurs over a broad range of impact parameters.