Abstract
The decay from the high-lying states of excited via inelastic scattering of at a bombarding energy of 340 MeV was measured using the high-resolution AGATA-demonstrator array in coincidence with scattered ions detected in two segmented silicon detectors. Angular distributions of scattered ions and emitted rays were measured, as well as their differential cross sections. The excitation of states below the neutron separation energy is similar to the one obtained in reactions with the isoscalar probe. The comparison between the experimental differential cross sections and the corresponding predictions using the distorted-wave Born approximation allowed us to extract the isoscalar component of identified pygmy states. For this analysis the form factor obtained by folding microscopically calculated transition densities and optical potentials was used.
- Received 22 December 2015
DOI:https://doi.org/10.1103/PhysRevC.93.044330
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