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Journal articles
Beyond the neutron drip line: The unbound oxygen isotopes $^{25}$O and $^{26}$O
C. Caesar
J. Simonis
T. Adachi
Y. Aksyutina
J. Alcantara
S. Altstadt
H. Alvarez-Pol
N. Ashwood
T. Aumann
V. Avdeichikov
M. Barr
S. Beceiro
D. Bemmerer
J. Benlliure
C.A. Bertulani
K. Boretzky
M.J.G. Borge
G. Burgunder
1
M. Caamano
E. Casarejos
W. Catford
J. Cederkall
S. Chakraborty
M. Chartier
L. Chulkov
D. Cortina-Gil
U. Datta Pramanik
P. Diaz Fernandez
I. Dillmann
Z. Elekes
J. Enders
O. Ershova
A. Estrade
F. Farinon
L. M. Fraile
M. Freer
M. Freudenberger
H.O U. Fynbo
D. Galaviz
H. Geissel
R. Gernhauser
P. Golubev
D. Gonzalez Diaz
J. Hagdahl
T. Heftrich
M. Heil
M. Heine
A. Heinz
A. Henriques
M. Holl
J.D. Holt
G. Ickert
A. Ignatov
B. Jakobsson
H.T. Johansson
B. Jonson
N. Kalantar-Nayestanaki
R. Kanungo
A. Kelic-Heil
R. Knöbel
T. Kröll
R. Krucken
J. Kurcewicz
M. Labiche
C. Langer
T. Le Bleis
R. Lemmon
O. Lepyoshkina
S. Lindberg
J. Machado
J. Marganiec
V. Maroussov
J. Menendez
M. Mostazo
A. Movsesyan
A. Najafi
T. Nilsson
C. Nociforo
V. Panin
A. Perea
S. Pietri
R. Plag
A. Prochazka
A. Rahaman
G. Rastrepina
R. Reifarth
G. Ribeiro
M. V. Ricciardi
C. Rigollet
K. Riisager
M. Röder
D. Rossi
J. Sanchez del Rio
D. Savran
H. Scheit
A. Schwenk
H. Simon
O. Sorlin
1
V. Stoica
B. Streicher
James Taylor
O. Tengblad
S. Terashima
R. Thies
Y. Togano
E. Uberseder
J. van de Walle
P. Velho
V. Volkov
A. Wagner
F. Wamers
H. Weick
M. Weigand
C. Wheldon
G. Wilson
C. Wimmer
J.S. Winfield
P. Woods
D. Yakorev
M.V. Zhukov
A. Zilges
M. Zoric
K. Zuber
1
GANIL - Grand Accélérateur National d'Ions Lourds (Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5 - France)
- CNRS - Centre National de la Recherche Scientifique : UPR3266 (France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/GANIL (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
Abstract : The very neutron-rich oxygen isotopes 25O and 26O are investigated experimentally and theoretically. The unbound states are populated in an experiment performed at the R3B-LAND setup at GSI via proton-knockout reactions from 26F and 27F at relativistic energies around 442 and 414 MeV/nucleon, respectively. From the kinematically complete measurement of the decay into 24O plus one or two neutrons, the 25O ground-state energy and width are determined, and upper limits for the 26O ground-state energy and lifetime are extracted. In addition, the results provide indications for an excited state in 26O at around 4MeV. The experimental findings are compared to theoretical shell-model calculations based on chiral two- and three-nucleon (3N) forces, including for the first time residual 3N forces, which are shown to be amplified as valence neutrons are added.
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http://hal.in2p3.fr/in2p3-00862732
Contributor : Michel Lion <>
Submitted on : Tuesday, September 17, 2013 - 1:53:09 PM
Last modification on : Friday, May 29, 2020 - 2:22:02 PM
Contributor : Michel Lion <>
Submitted on : Tuesday, September 17, 2013 - 1:53:09 PM
Last modification on : Friday, May 29, 2020 - 2:22:02 PM
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- HAL Id : in2p3-00862732, version 1
- DOI : 10.1103/PhysRevC.88.034313
Citation
C. Caesar, J. Simonis, T. Adachi, Y. Aksyutina, J. Alcantara, et al.. Beyond the neutron drip line: The unbound oxygen isotopes $^{25}$O and $^{26}$O. Physical Review C, American Physical Society, 2013, 88, pp.034313. ⟨10.1103/PhysRevC.88.034313⟩. ⟨in2p3-00862732⟩
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