Fusion and direct reactions around the barrier for the systems ^7,9Be,⁷Li+²³⁸U

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R. Raabe
Instituut voor Kern- en Stralingsfysica, K. U. Leuven, B-3001 Leuven, Belgium

C. Angulo
Centre de Recherches du Cyclotron, Université catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium

J. L. Charvet, C. Jouanne, and L. Nalpas
DSM/DAPNIA/Service de Physique Nucléaire, CEA Saclay, F-91191 Gif-sur-Yvette, France

P. Figuera
Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali del Sud, I-95123 Catania, Italy

D. Pierroutsakou and M. Romoli
Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, I-80126 Naples, Italy

J. L. Sida
DPTA/Service de Physique Nucléaire, CEA DIF, F-91680 Bruyères-le-Châtel, France

Received 17 May 2006; published 19 October 2006

Wepresent new cross section data for the complete fusion ofthe weakly bound systems ^7,9Be and ⁷Li on ²³⁸U atenergies around the Coulomb barrier. In the same measurement, yieldsfor direct processes and incomplete fusion are detected. For allsystems, a suppression of the complete fusion cross section aroundand above the barrier is observed. At energies below thebarrier, the fusion of the ⁷Be+²³⁸U system shows no enhancementwith respect to simple model predictions.

URL:	http://link.aps.org/doi/10.1103/PhysRevC.74.044606
DOI:	10.1103/PhysRevC.74.044606
PACS:	25.60.Pj; 25.85.Ge 25.60.Pj Unstable nucleus induced fusion reactions 25.85.Ge Charged-particle-induced fission of nuclei YEAR: 2006

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