Fusion of the super(6)Li+ super(120)Sn and super(7)Li+ super(119)Sn and the role of neutron transfer and breakup processes

Excitation functions have been measured for the fusion of the weakly bound nuclei super(6)Li and super(7)Li respectively with super(120)Sn and super(119)Sn at energies around the Coulomb barrier by using an activation technique. With such a study we aim to investigate the role played by direct proce...

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Published inJournal of physics. Conference series Vol. 515; pp. 1 - 7
Main Authors Fisichella, M, Shotter, A C, Di Pietro, A, Figuera, P, Lattuada, M, Musumarra, A, Pellegriti, M G, Ruiz, C, Scuderi, V, Strano, E, Torresi, D, Zadro, M
Format Journal Article
LanguageEnglish
Published 01.01.2014
Subjects
Barriers
Beams (radiation)
Breakup
Coulomb friction
Cross sections
Energy use
Mathematical models
Nuclei
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Summary:Excitation functions have been measured for the fusion of the weakly bound nuclei super(6)Li and super(7)Li respectively with super(120)Sn and super(119)Sn at energies around the Coulomb barrier by using an activation technique. With such a study we aim to investigate the role played by direct processes as neutron transfer and breakup on fusion. At energies above the barrier, the complete fusion cross section are lower than those predicted by fusion models. This suppression is independent of beam energy and is in agreement with the values reported in literature for heavier systems. At energies below the barrier, no significant enhancement due to the positive Q-value for one and two neutron transfer for the super(7)Li+ super(119)Sn system is observed as compared with the super(6)Li+ super(120)Sn.
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ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/515/1/012006