Artículo
Scattering of the Halo Nucleus 11Be on 197Au at Energies around the Coulomb Barrier
Autor/es | Pesudo, V.
Borge, M. J. G. Moro Muñoz, Antonio Matías Lay Valera, José Antonio Nácher, E. Gómez Camacho, Joaquín José Tengblad, Olof Acosta, Luis Alcorta, Martín González Álvarez, Marcos Aurelio Fernández García, Juan Pablo Wang, Z. M. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2017 |
Fecha de depósito | 2017-12-20 |
Publicado en |
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Resumen | Angular distributions of the elastic, inelastic, and breakup cross sections of the halo nucleus 11Be on197 Au were measured at energies below (Elab =31.9 MeV) and around (39.6 MeV) the Coulomb barrier. These three channels ... Angular distributions of the elastic, inelastic, and breakup cross sections of the halo nucleus 11Be on197 Au were measured at energies below (Elab =31.9 MeV) and around (39.6 MeV) the Coulomb barrier. These three channels were unambiguously separated for the first time for reactions of 11Be on a high-Z target at low energies. The experiment was performed at TRIUMF (Vancouver, Canada). The differential cross sections were compared with three different calculations: semiclassical, inert-core continuum-coupled-channels and continuum-coupled-channels ones with including core deformation. These results show conclusively that the elastic and inelastic differential cross sections can only be accounted for if core-excited admixtures are taken into account. The cross sections for these channels strongly depend on the β (E1) distribution in 11Be, and the reaction mechanism is sensitive to the entanglement of core and halo degrees of freedom in 11Be. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN) |
Identificador del proyecto | FPA2015-64969-P
FIS2014-53448-C2-1-P FPA2013-47327-c02-01-R FPA2012-32443 FIS2013-41994-P CSD2007- 00042 EUI-2009-04162 654002 VH-VI-417 600376 |
Cita | Pesudo, V., Borge, M.J.G., Moro Muñoz, A.M., Lay, J.A., Nácher, E., Gómez Camacho, J.J.,...,González Álvarez, M.A. (2017). Scattering of the Halo Nucleus 11Be on 197Au at Energies around the Coulomb Barrier. Physical Review Letters, 118 (15), 152502. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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PhysRevLett.118.152502.pdf | 467.6Kb | [PDF] | Ver/ | |