Polarized neutron capture onC13

Abstract

The 90' cross section yield curve for the ' C(n, yo)'"C reaction has been measured from E"(E")=5. 6(13. 4) to 17.0(24.0) MeV. Angular distributions of cross section and analyzing power were measured at seven energies spanning this excitation region. In addition, the fore-aft asym-, metry and 90 analyzing power were measured as a function of energy from E"=7. 75 to 17.0 MeV.The data were compared to. direct-semidirect model calculations which included the isovector dipole and, isoscalar electric quadrupole transitions. These comparisons indicate the presence of two narrow M 1 resonances at E"=16.5 and 17.5 MeV and that o(E2) is less than 2% of the total capture cross section in the energy region of this experiment.

Analyzing power measurement for theN14(p⃗,γ)ONelson1, Ahmed2, Perdue3 et al. 2003Phys. Rev. CSelf Cite221120View full textAdd to dashboardCite

“…Details of the computational model may be found in Ref. [12]. The direct-capture calculations used an optical model potential to generate distorted waves to describe the incident proton and a Woods-Saxon potential to calculate the radial bound-state wave functions.…”