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

The collision induced by the three Beryllium isotopes, Be, on Zn target were investigated at Ec.m. ≈ 1.4 the Coulomb barrier. Elastic scattering angular distributions were measured for the Be collisions whereas, in the Be case the quasielastic scattering angular distribution was obtained. A strong damping of the quasielastic cross-section was observed in the Be 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 Be case could be attributed to transfer and/or break-up events. 11 present address: LPC-ENSICAEN, IN2P3-CNRS and Université de Caen, France 12 present address: Departamento de Fysica Atomica, Molecular y Nuclear, Universidad Complutense,Madrid, Spain 13 present address: Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, USA International Nuclear Physics Conference 2010 (INPC2010) IOP Publishing Journal of Physics: Conference Series 312 (2011) 082020 doi:10.1088/1742-6596/312/8/082020 Published under licence by IOP Publishing Ltd 1