Quantum calculation of the dipole excitation in fusion reactions.
The excitation of the giant dipole resonance induced by fusion reaction is studied with N/Z asymmetry in the entrance channel. The time dependent Hartree-Fock solution exhibits a strong dipole vibration which can be associated with a giant vibration along the main axis of the deformed compound nucleus. This dipole motion appears to be nonlinearly coupled to the shape oscillation, leading to a strong modulation of its frequency. These phenomena can be detected in the gamma-ray emission from hot compound nuclei.
Simenel
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G.A.N.I.L., B.P. 55027, F-14076 Caen Cedex 5, France.
Chomaz
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de France
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