Simenel C, Chomaz P, de France G. Quantum calculation of the dipole excitation in fusion reactions.
PHYSICAL REVIEW LETTERS 2001;
86:2971-2974. [PMID:
11290085 DOI:
10.1103/physrevlett.86.2971]
[Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2000] [Indexed: 05/23/2023]
Abstract
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.
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