Influence of the Mass Asymmetry on the Onset of Incomplete and the Limit to Complete Fusion

Velocity spectra of evaporation residues deviate characteristically from the mean velocity of complete fusion, indicating that the lost momentum (mass) in incomplete fusion originates perferentially from the lighter partner. By varying the energy in the range 10-25 MeV/u the authors determine the onset of incomplete and the limit to complete fusion, and they discuss dependence on the mass asymmetry in the entrance channel.

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