Abstract

AGUILERA, E.F et al. Protons from ⁸B+⁵⁸Ni. Rev. mex. fis. [online]. 2006, vol.52, suppl.1, pp.41-45. ISSN 0035-001X.

Proton angular distributions are measured for the exotic proton-halo nucleus ⁸B on a ⁵⁸Ni target. The proton spectra are well described by statistical model calculations using the code PACE if both complete and incomplete fusion are taken into account. Fusion cross sections are deduced by using calculated proton multiplicities, a technique that is first successfully tested with the better known beam ⁶Li. The resulting fusion excitation function shows a large enhancement that requires a strikingly large barrier radius in order to be described, consistent with the assumption of a proton halo for ⁸B.

Keywords : Exotic nucleus; proton halo; complete and incomplete fusion.

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