Inclusive reactionNb93(p⃗,α) at an incident energy of 160 MeV

Abstract

The inclusive $^{93}\mathrm{Nb}$($\stackrel{P\vec}{p},\ensuremath{\alpha}$) reaction to the continuum was investigated at an incident energy of 160 MeV. Emission-energy angular distributions for cross sections as well as analyzing powers were explored. A range of scattering angles from 15${}^{\ensuremath{\circ}}$ to 60${}^{\ensuremath{\circ}}$ (lab.) was covered and $\ensuremath{\alpha}$-particle emission energies from $\ensuremath{\approx}$30 MeV to the kinematic limit were measured. As in our earlier work, the experimental distributions were compared with a multistep direct theory combined with a knockout reaction mechanism as the terminating step in the $\ensuremath{\alpha}$-particle emission. Reasonable agreement between the theoretical predictions and the experimental double-differential cross section and analyzing-power angular distributions were obtained.