Excitation functions of the analyzing power $A_y$(theta) for neutron elastic scattering from ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ were measured at two angles in the neutron energy range from 15.6 to 16.5 MeV. The results do not support the existence of the narrow resonance in n${\mathrm{-}}^{12}$C scattering located at $E_{\mathrm{n}}$=16.1 MeV that was observed recently by Benetskii et al. through similar $A_y$(theta) experiments. Instead, the data are moderately well described by our previous n${\mathrm{-}}^{12}$C phase-shift analysis, which gave no evidence of a pronounced narrow resonance anywhere between neutron energies from 15.5 to 16.5 MeV.

• Received 17 December 1986

DOI:https://doi.org/10.1103/PhysRevC.35.1578