Abstract

The ranges of the alpha-particles proceeding from the 334-, 867-, 927-, 1220-, and 1363-kev resonances in the bombardment of fluorine with protons were measured. The $Q'\mathrm{s}$ of those particles obtained at 334, 867, 927, and 1363 kev were found to be identical, and have the value 1.81 \ifmmode\pm\else\textpm\fi{} 0.04 Mev. The $Q$ of the low energy alpha-particles obtained at the 1220-kev resonance was found to be 1.93\ifmmode\pm\else\textpm\fi{}0.07 Mev. The two values thus yield an energy separation of 0.12\ifmmode\pm\else\textpm\fi{}0.08 Mev for the two corresponding states of ${\mathrm{O}}^{16}$. In addition it was shown that at least one of the two resonances which are in the neighborhood of 900 kev must yield short range alpha-particles whose angular distribution is not spherically symmetric.

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