We have measured the cross sections for production of the astrophysically prominent 6.13-MeV gamma ray from the ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$($p$,$p^{\prime }\gamma$)${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ reaction at $E_{\mathrm{lab}}^p=23.7\mathrm{} \mathrm{and} 44.6$ MeV to be 58.9 and 40.4 mb, respectively. Our results are compared to earlier measurements.

NUCLEAR REACTIONS ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$($p$,$p^{\prime }\gamma$)${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$. $E=23.7\mathrm{} \mathrm{and} 44.6$ MeV. Measured gamma-ray angular distributions and production cross sections. Implications for gamma-ray astronomy.

• Received 20 August 1981

DOI:https://doi.org/10.1103/PhysRevC.24.2727