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; N. Inabe; M. Ishihara; D. Kameda; Y. Kawada; T. Kubo; K. Kusaka; A. Mengoni; T. Motobayashi; T. Ohnishi; M. Ohtake; N.A. Orr; 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

doi:10.1103/PhysRevLett.103.262501

Journal Articles Physical Review Letters Year : 2009

Halo Structure of the Island of Inversion Nucleus 31Ne

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T. Nakamura

Function : Author

N. Kobayashi

Function : Author

Y. Kondo

Function : Author

Y. Satou

Function : Author

N. Aoi

Function : Author

H. Baba

Function : Author

S. Deguchi

Function : Author

N. Fukuda

Function : Author

J. Gibelin

Function : Author
PersonId : 11987
IdHAL : julien-gibelin
ORCID : 0000-0001-6751-3714
IdRef : 105736708

Laboratoire de physique corpusculaire de Caen

N. Inabe

Function : Author

M. Ishihara

Function : Author

D. Kameda

Function : Author

Y. Kawada

Function : Author

T. Kubo

Function : Author

K. Kusaka

Function : Author

A. Mengoni

Function : Author

T. Motobayashi

Function : Author

T. Ohnishi

Function : Author

M. Ohtake

Function : Author

N.A. Orr

Function : Author
PersonId : 940479

Laboratoire de physique corpusculaire de Caen

H. Otsu

Function : Author

T. Otsuka

Function : Author

A. Saito

Function : Author

H. Sakurai

Function : Author
PersonId : 755357
ORCID : 0000-0002-6215-4254

S. Shimoura

Function : Author

T. Sumikama

Function : Author
PersonId : 757885
ORCID : 0000-0002-7262-5339

H. Takeda

Function : Author

E. Takeshita

Function : Author

M. Takechi

Function : Author

S. Takeuchi

Function : Author

K. Tanaka

Function : Author

K.N. Tanaka

Function : Author

N. Tanaka

Function : Author

Y. Togano

Function : Author

Y. Utsuno

Function : Author

K. Yoneda

Function : Author

A. Yoshida

Function : Author

K. Yoshida

Function : Author

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.

Domains

Physics [physics] Nuclear Experiment [nucl-ex]

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https://hal.in2p3.fr/in2p3-00443978

Submitted on : Tuesday, January 5, 2010-1:12:41 PM

Last modification on : Saturday, June 25, 2022-9:46:21 AM

Dates and versions

in2p3-00443978 , version 1 (05-01-2010)

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HAL Id : in2p3-00443978 , version 1
DOI : 10.1103/PhysRevLett.103.262501

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T. Nakamura, N. Kobayashi, Y. Kondo, Y. Satou, N. Aoi, et al.. Halo Structure of the Island of Inversion Nucleus 31Ne. Physical Review Letters, 2009, 103, pp.262501. ⟨10.1103/PhysRevLett.103.262501⟩. ⟨in2p3-00443978⟩

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Halo Structure of the Island of Inversion Nucleus 31Ne

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