A phase-shift analysis of the ${}_{}{}^{28}{}_{}{}^{}\mathrm{Si}$(${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$) elastic scattering angular distributions measured between 0 and 180° c.m. shows that the backward rise of the angular distributions is due to small statistical fluctuations of the scattering matrix elements.

NUCLEAR REACTIONS Phase-shift analysis of heavy ion elastic scattering. Statistical fluctuations of the scattering matrix.

• Received 6 August 1980

DOI:https://doi.org/10.1103/PhysRevC.23.755