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Evidence of strong effects of the 11Be halo structure on reaction processes at energies around the Coulomb barrier

Abstract : The collision induced by the three Beryllium isotopes, 9,10,11Be, on 64Zn target were investigated at Ec.m. ≈ 1.4 the Coulomb barrier. Elastic scattering angular distributions were measured for the 9,10Be collisions whereas, in the 11Be case the quasielastic scattering angular distribution was obtained. A strong damping of the quasielastic cross-section was observed in the 11Be case, especially in the angular range around the Coulomb-nuclear interference peak. In this latter case a large total-reaction cross-section is found, more than a factor of two larger than the ones extracted in the reactions induced by the non-halo Beryllium isotopes. A large contribution to the total-reaction cross-section in the 11Be case could be attributed to transfer and/or break-up events.
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http://hal.in2p3.fr/in2p3-00691881
Contributor : Sandrine Guesnon <>
Submitted on : Friday, April 27, 2012 - 11:39:07 AM
Last modification on : Tuesday, February 5, 2019 - 12:12:09 PM

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A. Di Pietro, F. Amorini, P. Figuera, M. Fisichella, M. Lattuada, et al.. Evidence of strong effects of the 11Be halo structure on reaction processes at energies around the Coulomb barrier. International Nuclear Physics Conference 2010, INPC2010, Jul 2010, Vancouver, Canada. pp.082020, ⟨10.1088/1742-6596/312/8/082020⟩. ⟨in2p3-00691881⟩

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