title: Elastic scattering and reaction mechanisms of the halo nucleus 11Be around the Coulomb barrier.
abstract: Collisions induced by (9,10,11)Be on a 64Zn target at the same c.m. energy were studied. For the first time, strong effects of the 11Be halo structure on elastic-scattering and reaction mechanisms at energies near the Coulomb barrier are evidenced experimentally. The elastic-scattering cross section of the 11Be halo nucleus shows unusual behavior in the Coulomb-nuclear interference peak angular region. The extracted total-reaction cross section for the 11Be collision is more than double the ones measured in the collisions induced by (9,10)Be. It is shown that such a strong enhancement of the total-reaction cross section with 11Be is due to transfer and breakup processes.
authors.affiliation: INFN-Laboratori Nazionali del Sud and Sezione di Catania, Catania, Italy.
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authors.lastname: Di Pietro
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authors.lastname: Rizzo
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authors.lastname: Santonocito
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authors.lastname: Tengblad
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authors.lastname: Torresi
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authors.lastname: Maira Vidal
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authors.lastname: Voulot
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authors.lastname: Wenander
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authors.lastname: Zadro