Light particle spectra from 35 MeV/nucleonC12-induced reactions onAu197

Energy spectra for p, d, t, ${}_{}{}^3{}_{}{}^{}\mathrm{He}$, ${}_{}{}^4{}_{}{}^{}\mathrm{He}$, and ${}_{}{}^6{}_{}{}^{}\mathrm{He}$ from the reaction ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$+${}_{}{}^{197}{}_{}{}^{}\mathrm{Au}$ at 35 MeV/nucleon are presented. A common intermediate rapidity source is identified using a moving source fit to the spectra that yields cross sections which are compared to analogous data at other bombarding energies and to several different models. The excitation function of the composite to proton ratios is compared with quantum statistical, hydrodynamic, and thermal models.