Abstract
Solid target measurements are conducted in order to investigate 16O(α, α 0) 16O resonances in the energy region 2.0–3.6 MeV. Excitation functions are reported for scattering angles of 145° ( θ cm = 153°) and 165° ( θ cm = 168°), and resonances are observed at 2.522, 3.042, 3.082 and 3.372 MeV. The deduced widths of these resonances in the centre-of-mass frame are 19.00, 8.20, 3.36, and 15.10 keV respectively. It is reported that the widths of the first three resonances are in agreement with previous data, but the width of the 3.372 MeV resonance exceeds an early gas target result due to Cameron [5]. In addition, elastic scattering cross sections are compared with the gas target data and found to be consistent. It is concluded that the width of the 3 − resonance at 3.042 MeV is in agreement with the prediction due to multiparticle cluster calculations for 20Ne.
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