| V. Lapoux, N. Alamanos, F. Auger, Y. Blumenfeld, J.-M. Casandjian, M. Chartier, M.D. Cortina-Gil, V. Fékou-Youmbi, A. Gillibert, M. Mac Cormick, F. Maréchal, F. Marie, W. Mittig, F. de Oliveira Santos, N.A. Orr, A.N. Ostrowski, S. Ottini-Hustache, P. Roussel-Chomaz, J.-A. Scarpaci, J.-L. Sida, T. Suomijarvi, J. S. Winfield |
| Abstract
The 10;11Be(p,p) and (12C, 12C) reactions were analyzed to determine the in
uence of the weak binding energies of
exotic nuclei on their interaction potential. The elastic cross sections were measured at GANIL in inverse kinematics
using radioactive 10;11Be beams produced at energies of 39:1 A and 38:4A MeV. The elastic proton scattering data were
analyzed within the framework of the microscopic Jeukenne-Lejeune-Mahaux (JLM) nucleon-nucleus potential. The
angular distributions are found to be best reproduced by reducing the real part of the microscopic optical potential,
as a consequence of the coupling to the continuum. These e ects modify deeply the elastic potential. Including the
Virtual Coupling Potential (VCP), we show the ability of the general optical potentials to reproduce the data for
scattering of unstable nuclei, using realistic densities. Finally, the concepts needed to develop a more general and
microscopic approach of the VCP are discussed. |
