Abstract
The reaction ${\mathrm{F}}^{19}(p, {\ensuremath{\alpha}}_{0}){\mathrm{O}}^{16}$ was studied with 3- to 12-MeV protons. Angular distributions were measured at 23 energies. Excitation curves were measured at 70\ifmmode^\circ\else\textdegree\fi{}and 165\ifmmode^\circ\else\textdegree\fi{} over wide energy ranges. The angular distributions show a great variety of shapes, with combinations of forward and backward peaking. The excitation curves have considerable structure, but the structure is not fine enough to be interpreted as individual compound-nucleus levels. Direct-reaction analysis of the angular distributions was only partially successful, indicating that the reaction mechanism is more complicated.
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