Systematic reduction of the proton-removal cross section in neutron-rich medium-mass nuclei
Artikel i vetenskaplig tidskrift, 2020

Single-neutron and single-proton removal cross sections have been measured for medium-mass neutron-rich nuclei around Z=50 and energies around 1000A 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.

Nucleon removal

Short-range correlations

Medium-mass neutron-rich nuclei

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Publicerad i

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

0370-2693 (ISSN)

Vol. 811 art. nr 135962

Kategorisering

Ämneskategorier (SSIF 2011)

Acceleratorfysik och instrumentering

Subatomär fysik

Teoretisk kemi

Identifikatorer

DOI

10.1016/j.physletb.2020.135962

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Senast uppdaterat

2020-12-21