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On the near-barrier fusion of the proton-halo 8B + 58Ni system

  • Regular Article - Experimental Physics
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Abstract

We have performed two independent calculations, without any free parameter, to predict the near-barrier fusion cross section for the proton-halo 8B + 58Ni system, for which data were recently reported. Standard coupled channel calculations predict fusion cross sections smaller than the data, while CDCC calculations for the absorption cross section (fusion + transfer + inelastic cross sections) agree with the data above the barrier, although transfer cross sections are calculated to have non-negligible cross section at this energy regime. At sub-barrier energies, region where transfer cross sections are particularly important, the CDCC calculations overpredict the data. The fusion data of the 8B + 58Ni system fail to follow the systematics of other weakly bound nuclei and the UFF curve and do not agree with the fusion data of the 8B + 28Si system. We try to explain this anomalous behaviour.

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Authors and Affiliations

  1. Instituto de Física, Universidade Federal Fluminense, Av. Litoranea s/n, Gragoatá, Niterói, R.J., 24210-340, Brazil

    J. Rangel, J. Lubian & P. R. S. Gomes

  2. Departamento de Fisica, Instituto Tecnológico de Aeronáutica, 12228-900, Sao José dos Campos, São Paulo, Brazil

    B. V. Carlson

  3. Instituto de Física, Universidade de São Paulo, CP 66318, 05389-970, São Paulo, Brazil

    L. C. Chamon

  4. Departamento de Aceleradores, Instituto Nacional de Investigaciones, Apartado Postal 18-1027, C.P. 11801, México, D.F., Mexico

    A. Gomez Camacho

Authors
  1. J. Rangel
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  2. J. Lubian
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  3. P. R. S. Gomes
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  4. B. V. Carlson
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  5. L. C. Chamon
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  6. A. Gomez Camacho
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Correspondence to P. R. S. Gomes.

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Communicated by N. Alamanos

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Rangel, J., Lubian, J., Gomes, P.R.S. et al. On the near-barrier fusion of the proton-halo 8B + 58Ni system. Eur. Phys. J. A 49, 57 (2013). https://doi.org/10.1140/epja/i2013-13057-0

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  • DOI: https://doi.org/10.1140/epja/i2013-13057-0

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