A direct measurement of the 18F(p,α) 15O reaction

Abstract

The cross section for the 18F(p,α) 15O reaction has been obtained in reverse kinematics (18F beam on CH2 target) between 550 and 740 keV above threshold, i.e. in a region of astrophysical interest. The reaction yield is dominated by a wide resonant state whose spin, parity, total width and partial widths were deduced from the analysis of the α-particle and elastic proton data.