Portal de Periódicos da CAPES

Microscopic optical model analysis of nucleon scattering from light nuclei

1985; American Institute of Physics; Volume: 32; Issue: 3 Linguagem: Inglês

10.1103/physrevc.32.673

1538-4497

J.S. Petler, M. S. Islam, R. W. Finlay, Frank Dietrich,

Nuclear Physics and Applications

Differential cross sections for neutron elastic scattering from $^{12}\mathrm{C}$, $^{14}\mathrm{N}$, $^{16}\mathrm{O}$, and $^{27}\mathrm{Al}$ have been measured in the energy range 18--26 MeV. These data, together with previously published neutron and proton data for these nuclei and for $^{12}\mathrm{C}$ in the energy region 20 to 65 MeV, have been analyzed in terms of two microscopic optical potentials. The spherical potential derived from the work of Jeukenne, Lejeune, and Mahaux provides a consistent representation of the differential data, provided the imaginary central potential is renormalized. Predictions from the interaction of Brieva and Rook give less satisfactory agreement. In particular, there is a significant overprediction of the forward angle data below \ensuremath{\sim}25 MeV and an underprediction above \ensuremath{\sim}35 MeV.