Do Halo Nuclei Follow Rutherford Elastic Scattering at Energies Below the Barrier? The Case of 11Li
- Cubero, M.
- Fernandez-Garcia, J. P.
- Rodr\uedguez-Gallardo, M.
- Acosta, L.
- Alcorta, M.
- Alvarez, M. A. G.
- Borge, M. J. G.
- Buchmann, L.
- Diget, C. A.
- Falou, H. Al
- Fulton, B. R.
- Fynbo, H. O. U.
- Galaviz, D.
- Gomez-Camacho, J.
- Kanungo, R.
- Lay, J. A.
- Madurga, M.
- Martel, I.
- Moro, A. M.
- Mukha, I.
- Nilsson, Thomas
- Sanchez-Benitez, A. M.
- Shotter, A.
- Tengblad, Olof
- Walden, P.
DOIAbstract
The first measurement of the elastic scattering of the halo nucleus 11Li and its core 9Li on 208Pb at energies near the Coulomb barrier is presented. The 11Li+208Pb elastic scattering shows a strong reduction with respect to the Rutherford cross section, even at energies well below the barrier and down to very small scattering angles. This drastic change of the elastic differential cross section observed in 11Li+208Pb is the consequence of the halo structure of 11Li, as it is not observed in the elastic scattering of its core 9Li at the same energies. Four-body continuum-discretized coupled-channels calculations, based on a three-body model of the 11Li projectile, are found to explain the measured angular distributions and confirm that the ...
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