First Observation of the Unbound Nucleus Ne-15
Artikel i vetenskaplig tidskrift, 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
Författare
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 fysik
Björn Jonson
Chalmers, Fundamental fysik
C. Karagiannis
O. A. Kiselev
J. V. Kratz
R. Kulessa
N. Kurz
C. Langer
Mattias Lantz
Chalmers, Fundamental fysik
T. Le Bleis
R. Lemmon
Y. A. Litvinov
K. Mahata
C. Muntz
Thomas Nilsson
Chalmers, Fundamental fysik
C. Nociforo
Göran Hugo Nyman
Chalmers, Fundamental fysik
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 fysik
Physical Review Letters
0031-9007 (ISSN) 1079-7114 (eISSN)
Vol. 112 13 132502Ämneskategorier
Subatomär fysik
Fysik
Fundament
Grundläggande vetenskaper
DOI
10.1103/PhysRevLett.112.132502