Abstract
From measured cross sections for evaporative1H and4He, we have unfolded the separate effects of excitation energy (E) and spin (J) on the decay of194Hg. The analysis depends only on Bohr's independence hypothesis and on certain general features of the transmission coefficients for fusion. Evaporation-like emission of1H and4He increases rapidly with energy but decreases rather mildly with initial spin. Significant emission occurs even for very high spins where the calculated fission barrier is essentially zero. The equilibrium model for fission-evaporation competition is brought into question forE*≳98 MeV and J≳65 ħ.
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