Scattering of (6)He at energies around the Coulomb barrier

We have measured elastic cross sections of the scattering of 6He at ELab = 14, 16, 17, 18, 22 MeV on 208Pb in the angular ranges of 20± − 64± and 135± − 170±. A significant amount of 4He events is found at energies well below the Coulomb barrier, that becomes dominant above it. Optical Model calcula...

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Detalles Bibliográficos
Autores: Sánchez Benítez, Ángel Miguel, Escrig, Diego, Álvarez, M. A. G., Andrés, M. V., Angulo, C., García Borge, María José, García Ramos, José Enrique
Tipo de recurso: artículo
Fecha de publicación:2005
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/5535
Acceso en línea:http://hdl.handle.net/10272/5535
Access Level:acceso abierto
Palabra clave:Coulomb barrier
Descripción
Sumario:We have measured elastic cross sections of the scattering of 6He at ELab = 14, 16, 17, 18, 22 MeV on 208Pb in the angular ranges of 20± − 64± and 135± − 170±. A significant amount of 4He events is found at energies well below the Coulomb barrier, that becomes dominant above it. Optical Model calculations have been performed including a dynamic polarization potential. Very large imaginary diffuseness parameter is needed in order to describe the experimental distributions