Shell structure of the near-dripline nucleus 23O.
Breakup reactions were used to study the ground-state configuration of the neutron-rich isotope 23O. The 22O fragments produced in one-nucleon removal from 23O at 938 MeV/nucleon in a carbon target were detected in coincidence with deexciting gamma rays. The widths of the longitudinal momentum distributions of the 22O fragments and the one-neutron removal cross sections were interpreted in the framework of a simple theoretical model which favors the assignment of Ipi = 1/2+ to the 23O ground state.
Cortina-Gil
D
D
Universidad de Santiago de Compostela, E-15706, Spain.
Fernandez-Vazquez
J
J
Aumann
T
T
Baumann
T
T
Benlliure
J
J
Borge
M J G
MJ
Chulkov
L V
LV
Datta Pramanik
U
U
Forssén
C
C
Fraile
L M
LM
Geissel
H
H
Gerl
J
J
Hammache
F
F
Itahashi
K
K
Janik
R
R
Jonson
B
B
Mandal
S
S
Markenroth
K
K
Meister
M
M
Mocko
M
M
Münzenberg
G
G
Ohtsubo
T
T
Ozawa
A
A
Prezado
Y
Y
Pribora
V
V
Riisager
K
K
Scheit
H
H
Schneider
R
R
Schrieder
G
G
Simon
H
H
Sitar
B
B
Stolz
A
A
Strmen
P
P
Sümmerer
K
K
Szarka
I
I
Weick
H
H