Systematic reduction of the proton-removal cross section in neutron-rich medium-mass nuclei
Idioma
en
Article de revue
Este ítem está publicado en
Phys.Lett.B. 2020, vol. 811, p. 135962
Resumen en inglés
Single-neutron and single-proton removal cross sections have been measured for medium-mass neutron-rich nuclei around Z=50 and energies around 1000 A MeV using the FRagment Separator (FRS) at GSI. The measured cross sections ...Leer más >
Single-neutron and single-proton removal cross sections have been measured for medium-mass neutron-rich nuclei around Z=50 and energies around 1000 A MeV using the FRagment Separator (FRS) at GSI. The measured cross sections confirm the relative low values of the proton-removal cross sections, observed since a long time ago and not yet understood. Model calculations considering the knock-out process together with initial- and final-state interactions describe the measured neutron-removal cross sections. Proton-removal cross sections are, however, significantly over-predicted by the same calculations. The observed difference can be explained to a large extent by the knock-out of short-range correlated nucleons from dominant neutron-proton pairs in neutron-rich nuclei.< Leer menos
Palabras clave en inglés
Nucleon removal
Medium-mass neutron-rich nuclei
Short-range correlations
Orígen
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