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Disagreement between capture probabilities extracted from capture and quasi-elastic backscattering excitation functions

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Abstract.

Experimental quasi-elastic backscattering and capture (fusion) excitation functions are usually used to extract the s -wave capture probabilities for the heavy-ion reactions. We investigated the 16O + 120Sn , 144Sm , 208Pb systems at energies near and below the corresponding interaction barriers and concluded that the probabilities extracted from quasi-elastic data are much larger than the ones extracted from fusion excitation functions at sub and deep-sub barrier energies. This seems to be a reasonable explanation for the known disagreement observed in the literature for the nuclear potential diffuseness derived from both methods.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, 141980, Dubna, Russia

    V. V. Sargsyan, G. G. Adamian & N. V. Antonenko

  2. Yerevan State University, 0025, Yerevan, Armenia

    V. V. Sargsyan

  3. Instituto de Fisica, Universidade Federal Fluminense, Av. Litorânea, s/n, 24210-340, Niterói, R.J., Brazil

    R. P. S. Gomes

Authors
  1. V. V. Sargsyan
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  2. G. G. Adamian
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  3. N. V. Antonenko
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  4. R. P. S. Gomes
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Corresponding author

Correspondence to G. G. Adamian.

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Communicated by K. Yabana

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Sargsyan, V.V., Adamian, G.G., Antonenko, N.V. et al. Disagreement between capture probabilities extracted from capture and quasi-elastic backscattering excitation functions. Eur. Phys. J. A 50, 184 (2014). https://doi.org/10.1140/epja/i2014-14184-8

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  • DOI: https://doi.org/10.1140/epja/i2014-14184-8

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