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Study of the break-up channel in 11Li+208Pb collisions at energies around the Coulomb barrier

 

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Opened Access Study of the break-up channel in 11Li+208Pb collisions at energies around the Coulomb barrier
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Author: Fernández García, Juan Pablo
Cubero, M.
Rodríguez Gallardo, Manuela
Acosta, L.
Alcorta, M.
González Álvarez, Marcos Aurelio
Borge, M. J. G.
Buchmann, L.
Diget, C. A.
Gómez Camacho, Joaquín José
Moro Muñoz, Antonio Matías
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2014
Published in: Journal of Physics: Conference Series, 515, 012004.
Document type: Article
Abstract: We present a study of 11Li+208 Pb collisions at energies around the Coulomb barrier (Elab = 24.3 and 29.8 MeV), measured at the post-accelerated beam facility, ISAC II, at TRIUMF (Vancouver, Canada). A remarkably large yield of 9Li has been observed, a result that is attributed to the weak binding of the 11Li nucleus. The angular distribution of this 9Li yield, relative to the elastic one, has been analysed in terms of first-order semiclassical calculations as well as four-body and three-body Continuum-Discretized Coupled-Channels (CDCC) calculations, based on a three-body and di-neutron model of the 11Li nucleus, respectively. The calculations reproduce well the trend of the data and support the existence of a large concentration of B (E1) strength at very low excitation energies. The connection of this large B (E1) with a possible low-lying dipole resonance is discussed.
Cite: Fernández García, J.P., Cubero, M., Rodríguez Gallardo, M., Acosta, L., Alcorta, M., González Álvarez, M.A.,...,Diget, C.A. (2014). Study of the break-up channel in 11Li+208Pb collisions at energies around the Coulomb barrier. Journal of Physics: Conference Series, 515, 012004.
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URI: http://hdl.handle.net/11441/67954

DOI: 10.1088/1742-6596/515/1/012004

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