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Journal articles
Halo Structure of the Island of Inversion Nucleus 31Ne
T. Nakamura
N. Kobayashi
Y. Kondo
Y. Satou
N. Aoi
H. Baba
S. Deguchi
N. Fukuda
J. Gibelin
1
N. Inabe
M. Ishihara
D. Kameda
Y. Kawada
T. Kubo
K. Kusaka
A. Mengoni
T. Motobayashi
T. Ohnishi
M. Ohtake
N.A. Orr
1
H. Otsu
T. Otsuka
A. Saito
H. Sakurai
S. Shimoura
T. Sumikama
H. Takeda
E. Takeshita
M. Takechi
S. Takeuchi
K. Tanaka
K.N. Tanaka
N. Tanaka
Y. Togano
Y. Utsuno
K. Yoneda
A. Yoshida
K. Yoshida
J. Gibelin 1
Author Employer institution : Université de Caen Normandie IdHAL : julien-gibelin ORCID : https://orcid.org/0000-0001-6751-3714
N. Inabe
Author
M. Ishihara
Author
D. Kameda
Author
T. Motobayashi
Author
T. Ohnishi
Author
M. Ohtake
Author
N.A. Orr 1
Author Employer institution : Institut National de Physique Nucléaire et de Physique des Particules du CNRS
A. Yoshida
Author
K. Yoshida
Author
1
LPCC - Laboratoire de physique corpusculaire de Caen (ENSICAEN - 6, boulevard du Marechal Juin 14050 Caen Cedex - France)
- UNICAEN - Université de Caen Normandie (Esplanade de la Paix - CS 14032 - 14032 CAEN Cedex 5 - France)
- NU - Normandie Université (Esplanade de la Paix - CS 14032 - 14032 Caen Cedex 5 - France)
- ENSICAEN - École Nationale Supérieure d'Ingénieurs de Caen (6, Boulevard du Maréchal Juin CS 45053 14050 CAEN cedex 04 - France)
- NU - Normandie Université (Esplanade de la Paix - CS 14032 - 14032 Caen Cedex 5 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6534 (France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
Abstract : The cross sections for single-neutron removal from the very neutron-rich nucleus 31Ne on Pb and C targets have been measured at 230 MeV=nucleon using the RIBF facility at RIKEN. The deduced large Coulomb breakup cross section of 540(70) mb is indicative of a soft E1 excitation. Comparison with direct-breakup model calculations suggests that the valence neutron of 31Ne occupies a low-‘ orbital (most probably 2p3=2) with a small separation energy (Sn & 0:8 MeV), instead of being predominantly in the 1f7=2 orbital as expected from the conventional shell ordering. These findings suggest that 31Ne is the heaviest halo system known.
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http://hal.in2p3.fr/in2p3-00443978
Contributor : Sandrine Guesnon Connect in order to contact the contributor
Submitted on : Tuesday, January 5, 2010 - 1:12:41 PM
Last modification on : Tuesday, October 19, 2021 - 11:33:56 PM
Contributor : Sandrine Guesnon Connect in order to contact the contributor
Submitted on : Tuesday, January 5, 2010 - 1:12:41 PM
Last modification on : Tuesday, October 19, 2021 - 11:33:56 PM
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- HAL Id : in2p3-00443978, version 1
- DOI : 10.1103/PhysRevLett.103.262501
Citation
T. Nakamura, N. Kobayashi, Y. Kondo, Y. Satou, N. Aoi, et al.. Halo Structure of the Island of Inversion Nucleus 31Ne. Physical Review Letters, American Physical Society, 2009, 103, pp.262501. ⟨10.1103/PhysRevLett.103.262501⟩. ⟨in2p3-00443978⟩
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