12C+p resonant elastic scattering in the Maya active target
Résumé
In a proof-of-principle measurement, the Maya active target detector was employed for a
12C(p, p) resonant elastic scattering experiment in inverse kinematics. The excitation energy region from
0 to 3MeV above the proton breakup threshold in 13N was investigated in a single measurement. By
using the capability of the detector to localize the reaction vertex and record the tracks of the recoiling
protons, data covering a large solid angle could be utilized, at the same time keeping an energy resolution
comparable with that of direct-kinematics measurements. The excitation spectrum in 13N was fitted using
the R-matrix formalism. The level parameters extracted are in good agreement with previous studies. The
active target proved its potential for the study of resonant elastic scattering in inverse kinematics with
radioactive beams, when detection efficiency is of primary importance.