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

Abstract

Light fragments (H, $^{2}\mathrm{H}$, and $^{3}\mathrm{H}$) were detected in coincidence with high-energy (${E}_{\ensuremath{\gamma}}>20$ MeV) gamma rays from collisions of $^{14}\mathrm{N}$ on Zn at a beam energy of $\frac{E}{A}=40$ 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.