One-Neutron Removal Measurement Reveals O-24 as a New Doubly Magic Nucleus
Journal article, 2009
The first measurement of the momentum distribution for one-neutron removal from O-24 at 920A MeV performed at GSI, Darmstadt is reported. The observed distribution has a width (FWHM) of 99 +/- 4 MeV/c in the projectile rest frame and a one-neutron removal cross section of 63 +/- 7 mb. The results are well explained with a nearly pure 2s(1/2) neutron spectroscopic factor of 1.74 +/- 0.19 within the eikonal model. This large s-wave probability shows a spherical shell closure thereby confirming earlier suggestions that O-24 is a new doubly magic nucleus.
li-11
isotopes
fragment
particle stability
Author
R. Kanungo
C. Nociforo
A. Prochazka
T. Aumann
D. Boutin
D. Cortina-Gil
B. Davids
M. Diakaki
F. Farinon
H. Geissel
R. Gernhauser
J. Gerl
R. Janik
Björn Jonson
Chalmers, Applied Physics, Subatomic Physics
B. Kindler
R. Knobel
R. Krucken
Mattias Lantz
Chalmers, Applied Physics, Subatomic Physics
H. Lenske
Y. Litvinov
B. Lommel
K. Mahata
P. Maierbeck
A. Musumarra
Thomas Nilsson
Chalmers, Applied Physics, Subatomic Physics
T. Otsuka
C. Perro
C. Scheidenberger
B. Sitar
P. Strmen
B. Sun
I. Szarka
I. Tanihata
Y. Utsuno
H. Weick
M. Winkler
Physical Review Letters
0031-9007 (ISSN) 1079-7114 (eISSN)
Vol. 102 15Subject Categories
Subatomic Physics
DOI
10.1103/PhysRevLett.102.152501