New insight into knockout reactions from the two-proton halo nucleus Ne 17
Journal article, 2024
Background: The unexplained disagreement in the dependence of spectroscopic factors (C2Sexp) on the binding energy obtained by nucleon knockout using different targets is still a puzzle that needs to be addressed. Purpose: To find an explanation of this riddle through exclusive measurements using different targets. Method: The exclusive measurements were performed by using a Ne17 beam with an energy of 500 MeV/u incident on C and CH2 targets. Through the standard theoretical approach, C2Sexp were derived from the analysis of the experimental data on proton ejection from the proton halo in Ne17 as well as from its core O15. Result: For the C target, proton ejection from the proton halo gave C2Sexp about 37% smaller than for the H target. But when protons are ejected from the core of Ne17, C2Sexp are identical within statistical uncertainties. Conclusion: An explanation for the difference in C2Sexp could be the removal of both halo protons, a more important reaction pathway for the C target. The C2Sexp values obtained by analyzing the proton ejection from the core indicate that it is not affected by the interaction with the halo protons.
Author
F. Wamers
Helmholtz Association of German Research Centres
C. Lehr
Technische Universität Darmstadt
J. Marganiec-Gałazka
National Centre for Nuclear Research
Technische Universität Darmstadt
F. Aksouh
Helmholtz Association of German Research Centres
King Saud University College of Science
Y. Aksyutina
Helmholtz Association of German Research Centres
H. Alvarez-Pol
Universidade de Santiagode Compostela
L. Atar
Technische Universität Darmstadt
T. Aumann
Technische Universität Darmstadt
Helmholtz Association of German Research Centres
S. Beceiro-Novo
Universidade de Santiagode Compostela
C.A. Bertulani
Texas A&M University
K. Boretzky
Helmholtz Association of German Research Centres
M. Borge
Spanish National Research Council (CSIC)
C. Caesar
Technische Universität Darmstadt
Helmholtz Association of German Research Centres
M. Chartier
University of Liverpool
A. Chatillon
Helmholtz Association of German Research Centres
L. V. Chulkov
National Research Centre "Kurchatov Institute"
Helmholtz Association of German Research Centres
D. Cortina-Gil
Universidade de Santiagode Compostela
Paloma Diaz Fernandez
Chalmers, Physics, Subatomic and Plasma Physics
H. Emling
Helmholtz Association of German Research Centres
O. Ershova
Helmholtz Association of German Research Centres
Goethe University Frankfurt
L. M. Fraile
Complutense University
H. O. U. Fynbo
Aarhus University
D. Galaviz
Spanish National Research Council (CSIC)
H. Geissel
Helmholtz Association of German Research Centres
M. Heil
Helmholtz Association of German Research Centres
Matthias Holl
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
Håkan T Johansson
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
Björn Jonson
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
C. Karagiannis
Helmholtz Association of German Research Centres
O. Kiselev
Helmholtz Association of German Research Centres
J.V. Kratz
Johannes Gutenberg University Mainz
R. Kulessa
Jagiellonian University in Kraków
N. Kurz
Helmholtz Association of German Research Centres
C. Langer
Helmholtz Association of German Research Centres
Aachen University of Applied Sciences
Goethe University Frankfurt
Mattias Lantz
Uppsala University
T. Le Bleis
Helmholtz Association of German Research Centres
R.C. Lemmon
Cockcroft Institute
Y. Litvinov
Helmholtz Association of German Research Centres
K. Mahata
Helmholtz Association of German Research Centres
C. Muntz
Helmholtz Association of German Research Centres
Thomas Nilsson
Chalmers, Physics
C. Nociforo
Helmholtz Association of German Research Centres
V. Panin
Technische Universität Darmstadt
Helmholtz Association of German Research Centres
S. Paschalis
University of York
University of Liverpool
A. Perea
Spanish National Research Council (CSIC)
R. Plag
Goethe University Frankfurt
Helmholtz Association of German Research Centres
R. Reifarth
Helmholtz Association of German Research Centres
Goethe University Frankfurt
A. Richter
Technische Universität Darmstadt
K. Riisager
Aarhus University
C. Rodriguez-Tajes
Universidade de Santiagode Compostela
D. Rossi
Helmholtz Association of German Research Centres
Technische Universität Darmstadt
D. Savran
Helmholtz Association of German Research Centres
H. Scheit
Helmholtz Association of German Research Centres
G. Schrieder
Technische Universität Darmstadt
H. Simon
Helmholtz Association of German Research Centres
J. Stroth
Goethe University Frankfurt
K. Summerer
Helmholtz Association of German Research Centres
O. Tengblad
Spanish National Research Council (CSIC)
S. Typel
Helmholtz Association of German Research Centres
Technische Universität Darmstadt
H. Weick
Helmholtz Association of German Research Centres
Physical Review C
24699985 (ISSN) 24699993 (eISSN)
Vol. 109 5 054602Subject Categories (SSIF 2011)
Subatomic Physics
DOI
10.1103/PhysRevC.109.054602