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A search for parameters of universal sub-barrier fusion excitation function

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Abstract.

Many fusion experimental data have been analyzed in terms of a simple universal function which could be used for predictions of fusion cross section below the barrier for arbitrary systems. Sub-barrier fusions based on the concept of Q -fusion value dependence were studied. It is attempted to parameterize the energy-reduced fusion excitation functions around the Coulomb barriers by an analytical phenomenological function. It was found that the speed of driving nuclei towards fusion is faster with the increase of mass asymmetry of colliding systems and those systems with a large difference of the ratio of neutrons to protons. However, a general trend with respect to total mass has not been observed. An exposition of more qualitative conclusions is hindered by apparent inconsistencies of measured fusion cross sections.

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Correspondence to G. L. Zhang.

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Communicated by F. Nunes

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Qu, W.W., Zhang, G.L. & Wolski, R. A search for parameters of universal sub-barrier fusion excitation function. Eur. Phys. J. A 52, 327 (2016). https://doi.org/10.1140/epja/i2016-16327-3

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  • DOI: https://doi.org/10.1140/epja/i2016-16327-3

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