Search for a long lived component in the reaction U+U near the Coulomb barrier

Abstract : We performed an experiment to search for a signature of a long living component in the collision of $^{238}$U + $^{238}$U between 6.09 and 7.35A MeV. The experiment was performed at GANIL using the spectrometer VAMOS, tuned for observing reactions with kinematics similar to fusion-fission events. Theoretical calculations indicate that if a long living component would exist for this reaction, the most probable fission channel of such a giant system would be via the emissionof quasi-lead nuclei. We detected events of such a category in the focal plane of VAMOS. These events present an excitation function growing as a function of the bombarding energy.
Keywords : fission giant system
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Submitted on : Wednesday, December 6, 2006 - 10:30:27 AM
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A.C.C. Villari, C. Golabek, W. Mittig, S. Heinz, S. Bhattacharyya, et al.. Search for a long lived component in the reaction U+U near the Coulomb barrier. TOURS 2006, Tours Symposium on Nuclear Physics VI, Sep 2006, Tours, France. pp.60-69, ⟨10.1063/1.2713501⟩. ⟨in2p3-00118677⟩

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