Neutron–charged-particle correlations in the 3.8 MeV per nucleon ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$${+}^{12}$C and 13.4 MeV per nucleon ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$${+}^{27}$Al reactions

Neutron–light-charged-particle (LCP) and LCP-LCP correlation functions were measured for the 215 MeV ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$${+}^{27}$Al reaction, together with the neutron-proton correlation function for the ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$${+}^{12}$C reaction at ${\mathit{E}}_{\mathrm{lab}}$=60.5 MeV. The np and pp correlation data are compared with the predictions of the Koonin model and a semiclassical evaporation model. Both models provide an excellent fit to the np data, while the pp data are not reproduced as well. Production yields of singlet deuterons, ground state ${}_{}{}^5{}_{}{}^{}\mathrm{He}$ and ${}_{}{}^5{}_{}{}^{}\mathrm{Li}$, and ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ nuclei in the 2.186 MeV state were obtained from the coincidence data, and a nuclear temperature of T=2.$0_{\mathrm{-}0.6}^{+0.8\mathrm{}}$ MeV for the ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$${+}^{27}$Al compound system was determined from the ratio of singlet to ground state deuteron emission, after corrections for sequential emission and noncompound deuteron production. This temperature value is well below the Fermi gas model estimate, and a similar result is observed for the ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$${+}^{12}$C compound system.