Fusion excitation function revisited

Abstract : We report on a comprehensive systematics of fusion-evaporation and/or fusion-fission cross sections for a very large variety of systems over an energy range 4-155 A.MeV. Scaled by the reaction cross sections, fusion cross sections do not show a universal behavior valid for all systems although a high degree of correlation is present within subsets of appropriately selected data: Regularities show up when data are ordered by the system mass asymmetry. For the rather light and close to mass-symmetric systems the main characteristics of the complete and incomplete fusion excitation functions can be precisely determined. Despite an evident lack of data above 15A.MeV for all heavy systems the available data suggests that geometrical effects could explain the persistence of incomplete fusion at incident energies as high as 155A.MeV.
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Conference papers
11th International Conference on Nucleus Nucleus Collisions, May 2012, San Antonio, United States. 420, pp.012133, 2013, <10.1088/1742-6596/420/1/012133>


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Submitted on : Monday, September 10, 2012 - 12:00:01 PM
Last modification on : Monday, September 10, 2012 - 12:00:01 PM

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Ph. Eudes, Z. Basrak, F. Sébille, V. De La Mota, G. Royer, et al.. Fusion excitation function revisited. 11th International Conference on Nucleus Nucleus Collisions, May 2012, San Antonio, United States. 420, pp.012133, 2013, <10.1088/1742-6596/420/1/012133>. <in2p3-00730447>

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