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
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Universidad de Sevilla
Istituto Nazionale di Fisica Nucleare
Consejo Superior de Investigaciones Científicas (CSIC)
[Person 1f40b678-0846-44f9-8237-ca56b089eb7a not found]
Consejo Superior de Investigaciones Científicas (CSIC)
Centro de Investigación en Ciencias Atómicas
Universidade Federal Fluminense
[Person aa305f4c-d753-4bc9-b2a0-1cf9168a3798 not found]
Universidad de Sevilla
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Istituto Nazionale di Fisica Nucleare
Universidad de Huelva
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Consejo Superior de Investigaciones Científicas (CSIC)
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Universidad de Sevilla
Consejo Superior de Investigaciones Científicas (CSIC)
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Consejo Superior de Investigaciones Científicas (CSIC)
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TRIUMF
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University of York
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Saint Mary's University
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University of York
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Aarhus Universitet
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Universidade de Lisboa
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Universidad de Sevilla
Consejo Superior de Investigaciones Científicas (CSIC)
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Saint Mary's University
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Universidad de Sevilla
Università di Padova
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Consejo Superior de Investigaciones Científicas (CSIC)
[Person 2c6a8898-e98f-47bd-addd-aef66c4c771e not found]
Universidad de Huelva
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Universidad de Sevilla
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Helmholtz-Gemeinschaft Deutscher Forschungszentren
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Chalmers, Fundamental fysik
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Universidad de Huelva
Universidade de Lisboa
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University of Edinburgh
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Consejo Superior de Investigaciones Científicas (CSIC)
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TRIUMF
Journal of Physics: Conference Series
17426588 (ISSN) 17426596 (eISSN)
Vol. 515 1 012004Ämneskategorier (SSIF 2011)
Fysik
DOI
10.1088/1742-6596/515/1/012004