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Phys. Rev. C 75, 037601 (2007) [4 pages]

Appropriate bare potentials for studying fusion induced by 6He

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E. Crema,1 P. R. S. Gomes,2 and L. C. Chamon1
1Departamento de Física Nuclear, Instituto de Física da Universidade de São Paulo, Caixa Postal 66318, 05315-970, São Paulo, SP, Brazil
2Instituto de Física, Universidade Federal Fluminense, Av. Litorânea s/n, Gragoatá, Niterói, R.J., 24210-340, Brasil
Received 10 November 2006; revised 11 January 2007; published 8 March 2007

We analyze fusion cross sections induced by the 6He halo projectile in the framework of the double-folding São Paulo potential, which has already been shown to be a reliable potential for the analysis of fusion cross sections induced by stable weakly bound nuclei. The results show that the fusion cross sections of 6He+209Bi, 238U, 64Zn are suppressed at energies above the barrier when compared with coupled-channels calculations that do not take into account the projectile breakup, whereas they are in agreement with the calculations at subbarrier energies. The results for the 6He+209Bi system are contradictory to those reported previously.

©2007 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.75.037601
DOI: 10.1103/PhysRevC.75.037601
PACS: 25.60.Pj; 25.70.Mn; 24.10.Eq
  • 25.60.Pj
    Unstable nucleus induced fusion reactions
  • 25.70.Mn
    Heavy ion-induced projectile and target fragmentation
  • 24.10.Eq
    Coupled-channel and distorted-wave models of nuclei
  • YEAR: 2007
KEYWORDS: heavy ion fusion reactions, nuclear models, nuclear halos, nuclei with mass number 190 to 219, nuclei with mass number 220 or higher, nuclei with mass number 59 to 89

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