The reactions 18O(p,p)18O and 18O(p,p')18O1(1.98 MeV) for Ep = 3.8–6.1 MeV |
| |
Authors: | Rafael Almanza Ghiraldo Murillo SE Darden Sudhir Sen |
| |
Institution: | Instituto Nacional de Energía Nuclear, México;Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA |
| |
Abstract: | Angular distributions of cross sections and analyzing powers have been measured for 18O(p, p)18O and 18O(p, p1)18O1 (1.98 MeV) in 25 keV intervals for proton energies between 3.8 and 6.1 MeV. A phase-shift analysis of the elastic scattering data was carried out, yielding resonance parameters for 16 levels in 19F in the excitation energy region 11.6–13.8 MeV. The results generally are in good agreement with previous work. On the basis of spin, parity, excitation energy and a comparison of reduced proton widths with reduced neutron widths of levels in 19O, an assignment of could be made to at least five of the levels, including the analog of the broad level in 19O at 5.45 MeV. A Legendre-polynomial analysis of the inelastic scattering data suggests that the cross section for proton energies between 5.0 and 5.5 MeV is dominated by the broad + resonance at Ep = 5.15 MeV. |
| |
Keywords: | Nuclear reactions |
本文献已被 ScienceDirect 等数据库收录! |
|