Tracking Dissipation in Capture Reactions

概要

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Nuclear dissipation in capture reactions is investigated using backtracing. Combining the analysis procedure with dynamical models, the difficult and long-standing problem of competition and mixing of quasi-fission and fusion-fission is solved for the first time. At low excitation energy a new protocol able to handle low statistics data gives access to the prescission neutron multiplicity in two different systems ^<48>Ca + ^<208>Pb, Pu. The results are in agreement with a domination of fusion-fission in the case of ^<256>No and an equal mixing of quasi-fission and fusion-fission in the case of Z = 114. The nature of the relevant dissipation is determined as one-body dissipation.
理論物理学刊行会の論文
2004-07-30