Isobaric charge-exchange reactions induced by beams of112Sn have been investigated at the GSI facility using the fragment separator FRS. The high-resolving power of this spectrometer makes it possible to obtain the isobaric charge-exchange cross sections with an uncertainty of 3.5% and to separate quasi-elastic and inelastic contributions in the missing-energy spectra, in which the inelastic component is associated to the in-medium excitation of baryonic resonances such as the ∆ resonance. We report on the results obtained for the (p, n) channel excited by using different targets that cover a large range in neutron excess. In addition, we also compare the missing-energy spectra with an intranuclear cascade model coupled to a de-excitation code to investigate the in-medium effects in the production of baryonic resonances.
|Journal||Journal of Physics: Conference Series|
|State||Published - Dec 23 2020|
|Event||27th International Nuclear Physics Conference, INPC 2019 - Glasgow, United Kingdom|
Duration: Jul 29 2019 → Aug 2 2019