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


J. Díaz-Cortes

Universidade de Santiagode Compostela

J. Benlliure

Universidade de Santiagode Compostela

J. L. Rodriguez-Sanchez

Universidade de Santiagode Compostela

H. Alvarez-Pol

Universidade de Santiagode Compostela

T. Aumann

Technische Universität Darmstadt

C.A. Bertulani

Texas A&M University

B. Blank

Centre d'Etudes Nucleaires de Bordeaux Gradignan

E. Casarejos

Universidad de Vigo

D. Cortina-Gil

Universidade de Santiagode Compostela

D. Dragosavac

Universidade de Santiagode Compostela

V. Föhr


A. Gargano

Istituto Nazionale di Fisica Nucleare

M. Gascon

Universidade de Santiagode Compostela

W. Gawlikowicz

Uniwersytet Kardynala Stefana Wyszynskiego w Warszawie

Andreas Martin Heinz

Chalmers, Fysik, Subatomär, högenergi- och plasmafysik

K. Helariutta

Helsingin Yliopisto

A. Kelic-Heil


S. Lukić


F. Montes


D. Perez-Loureiro

Universidade de Santiagode Compostela

L. Pieńkowski

Uniwersytet Warszawski

K. H. Schmidt


M. Staniou


K. Subotić

Institut za nuklearne nauke Vinca

K. Summerer


J. Taieb

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

A. Trzcińska

Uniwersytet Warszawski

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

0370-2693 (ISSN)

Vol. 811 135962


Acceleratorfysik och instrumentering

Subatomär fysik

Teoretisk kemi



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