First Observation of the Unbound Nucleus Ne-15
Journal article, 2014
We report on the first observation of the unbound proton-rich nucleus Ne-15. Its ground state and first excited state were populated in two-neutron knockout reactions from a beam of 500 MeV/u Ne-17. The Ne-15 ground state is found to be unbound by 2.522(66) MeV. The decay proceeds directly to O-13 with simultaneous two-proton emission. No evidence for sequential decay via the energetically allowed 2(-) and 1(-) states in F-14 is observed. The Ne-15 ground state is shown to have a strong configuration with two protons in the (sd) shell around O-13 with a 63(5)% (1s(1/2))(2) component.
MASS
O-12
Author
F. Wamers
J. Marganiec
F. Aksouh
Y. Aksyutina
H. Alvarez-Pol
T. Aumann
S. Beceiro-Novo
K. Boretzky
M. J. G. Borge
M. Chartier
A. Chatillon
L. V. Chulkov
D. Cortina-Gil
H. Emling
O. Ershova
L. M. Fraile
H. O. U. Fynbo
D. Galaviz
H. Geissel
M. Heil
D. H. H. Hoffmann
Håkan T Johansson
Chalmers, Fundamental Physics
Björn Jonson
Chalmers, Fundamental Physics
C. Karagiannis
O. A. Kiselev
J. V. Kratz
R. Kulessa
N. Kurz
C. Langer
Mattias Lantz
Chalmers, Fundamental Physics
T. Le Bleis
R. Lemmon
Y. A. Litvinov
K. Mahata
C. Muntz
Thomas Nilsson
Chalmers, Fundamental Physics
C. Nociforo
Göran Hugo Nyman
Chalmers, Fundamental Physics
W. Ott
V. Panin
S. Paschalis
A. Perea
R. Plag
R. Reifarth
A. Richter
C. Rodriguez-Tajes
D. Rossi
K. Riisager
D. Savran
G. Schrieder
H. Simon
J. Stroth
K. Summerer
O. Tengblad
H. Weick
C. Wimmer
Mikhail Zhukov
Chalmers, Fundamental Physics
Physical Review Letters
0031-9007 (ISSN) 1079-7114 (eISSN)
Vol. 112 13 132502Subject Categories
Subatomic Physics
Physical Sciences
Roots
Basic sciences
DOI
10.1103/PhysRevLett.112.132502