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

Författare

J. P. Fernandez-Garcia

INFN - Laboratori Nazionali del Sud

CSIC-JA-USE - Centro Nacional de Aceleradores (CNA)

Universidad de Sevilla

M. Cubero

Centro de Investigación en Ciencias Atómicas

CSIC - Instituto de Estructura de la Materia (IEM)

Universidade Federal Fluminense

M. Rodríguez-Gallardo

Universidad de Sevilla

L. Acosta

INFN - Laboratori Nazionali del Sud

Universidad de Huelva

M. Alcorta

CSIC-JA-USE - Centro Nacional de Aceleradores (CNA)

M. A. G. Alvarez

Universidad de Sevilla

CSIC-JA-USE - Centro Nacional de Aceleradores (CNA)

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 Universitet

D. Galaviz

Universidade de Lisboa

J. Gomez-Camacho

CSIC-JA-USE - Centro Nacional de Aceleradores (CNA)

Universidad de Sevilla

R. Kanungo

Saint Mary's University

J. A. Lay

Universita degli Studi di Padova

Universidad de Sevilla

M. Madurga

CSIC - Instituto de Estructura de la Materia (IEM)

I. Martel

Universidad de Huelva

A. Moro

Universidad de Sevilla

I. G. Mukha

GSI Helmholtz Centre for Heavy Ion Research GmbH

Thomas Nilsson

Chalmers, Fundamental fysik

A. M. Sanchez-Benitez

Universidade de Lisboa

Universidad de Huelva

A. Shotter

University of Edinburgh

O. Tengblad

CSIC - Instituto de Estructura de la Materia (IEM)

P. Walden

TRIUMF

Journal of Physics: Conference Series

1742-6588 (ISSN)

Vol. 515 012004

Ämneskategorier

Fysik

DOI

10.1088/1742-6596/515/1/012004