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
C. Lehr
Technische Universität Darmstadt
J. Marganiec-Gałazka
National Centre for Nuclear Research
Technische Universität Darmstadt
F. Aksouh
Helmholtz
King Saud University College of Science
Y. Aksyutina
Helmholtz
H. Alvarez-Pol
Universidade de Santiagode Compostela
L. Atar
Technische Universität Darmstadt
T. Aumann
Technische Universität Darmstadt
Helmholtz
S. Beceiro-Novo
Universidade de Santiagode Compostela
C.A. Bertulani
Texas A&M University
K. Boretzky
Helmholtz
M. Borge
CSIC - Instituto de Estructura de la Materia (IEM)
C. Caesar
Technische Universität Darmstadt
Helmholtz
M. Chartier
University of Liverpool
A. Chatillon
Helmholtz
L. V. Chulkov
Helmholtz
National Research Centre "Kurchatov Institute"
D. Cortina-Gil
Universidade de Santiagode Compostela
Paloma Diaz Fernandez
Chalmers, Physics, Subatomic and Plasma Physics
H. Emling
Helmholtz
O. Ershova
Helmholtz
Goethe University Frankfurt
L. M. Fraile
Complutense University
H. O. U. Fynbo
Aarhus University
D. Galaviz
CSIC - Instituto de Estructura de la Materia (IEM)
H. Geissel
Helmholtz
M. Heil
Helmholtz
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
O. Kiselev
Helmholtz
J.V. Kratz
Johannes Gutenberg University Mainz
R. Kulessa
Jagiellonian University in Kraków
N. Kurz
Helmholtz
C. Langer
Helmholtz
Aachen University of Applied Sciences
Goethe University Frankfurt
Mattias Lantz
Uppsala University
T. Le Bleis
Helmholtz
R.C. Lemmon
Cockcroft Institute
Y. Litvinov
Helmholtz
K. Mahata
Helmholtz
C. Muntz
Helmholtz
Thomas Nilsson
Chalmers, Physics
C. Nociforo
Helmholtz
V. Panin
Helmholtz
Technische Universität Darmstadt
S. Paschalis
University of Liverpool
University of York
A. Perea
CSIC - Instituto de Estructura de la Materia (IEM)
R. Plag
Helmholtz
Goethe University Frankfurt
R. Reifarth
Goethe University Frankfurt
Helmholtz
A. Richter
Technische Universität Darmstadt
K. Riisager
Aarhus University
C. Rodriguez-Tajes
Universidade de Santiagode Compostela
D. Rossi
Technische Universität Darmstadt
Helmholtz
D. Savran
Helmholtz
H. Scheit
Helmholtz
G. Schrieder
Technische Universität Darmstadt
H. Simon
Helmholtz
J. Stroth
Goethe University Frankfurt
K. Summerer
Helmholtz
O. Tengblad
CSIC - Instituto de Estructura de la Materia (IEM)
S. Typel
Helmholtz
Technische Universität Darmstadt
H. Weick
Helmholtz
Physical Review C
24699985 (ISSN) 24699993 (eISSN)
Vol. 109 5 054602Subject Categories
Subatomic Physics
DOI
10.1103/PhysRevC.109.054602