Study of the break-up channel in 11Li+208Pb collisions at energies around the Coulomb barrier
Paper in proceeding, 2014
We present a study of 11Li+208Pb 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. © Published under licence by IOP Publishing Ltd.
Author
J. P. Fernandez-Garcia
INFN - Laboratori Nazionali del Sud
CSIC-JA-USE - Centro Nacional de Aceleradores (CNA)
University of Seville
M. Cubero
Fluminense Federal University
Centro de Investigación en Ciencias Atómicas
CSIC - Instituto de Estructura de la Materia (IEM)
M. Rodríguez-Gallardo
University of Seville
L. Acosta
University of Huelva
INFN - Laboratori Nazionali del Sud
M. Alcorta
CSIC-JA-USE - Centro Nacional de Aceleradores (CNA)
M. A. G. Alvarez
CSIC-JA-USE - Centro Nacional de Aceleradores (CNA)
University of Seville
M. J. G. Borge
CSIC - Instituto de Estructura de la Materia (IEM)
L. Buchmann
TRIUMF
C. A. Diget
University of York
H. A. Falou
Saint Mary's University
B. Fulton
University of York
H. O. U. Fynbo
Aarhus University
D. Galaviz
University of Lisbon
J. Gomez-Camacho
University of Seville
CSIC-JA-USE - Centro Nacional de Aceleradores (CNA)
R. Kanungo
Saint Mary's University
J. A. Lay
University of Seville
University of Padua
M. Madurga
CSIC - Instituto de Estructura de la Materia (IEM)
I. Martel
University of Huelva
A. Moro
University of Seville
I. G. Mukha
Helmholtz
Thomas Nilsson
Chalmers, Fundamental Physics
A. M. Sanchez-Benitez
University of Huelva
University of Lisbon
A. Shotter
University of Edinburgh
O. Tengblad
CSIC - Instituto de Estructura de la Materia (IEM)
P. Walden
TRIUMF
Journal of Physics: Conference Series
17426588 (ISSN) 17426596 (eISSN)
Vol. 515 1 012004Subject Categories
Physical Sciences
DOI
10.1088/1742-6596/515/1/012004