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Systematic reduction of the proton-removal cross section in neutron-rich medium-mass nuclei.
- Source :
-
Physics Letters B . Dec2020, Vol. 811, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PROTONS
*PARTICLES (Nuclear physics)
*NEUTRONS
*FORECASTING
Subjects
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 811
- Database :
- Academic Search Index
- Journal :
- Physics Letters B
- Publication Type :
- Academic Journal
- Accession number :
- 147459680
- Full Text :
- https://doi.org/10.1016/j.physletb.2020.135962