Search for neutron excitations across the N=20 shell gap in 25-29Ne -: art. no. 054316

被引：41

作者：

Belleguic, M ^{[1
]}

Azaiez, F

Dombrádi, Z

Sohler, D

Lopez-Jimenez, MJ

Otsuka, T

Saint-Laurent, MG

Sorlin, O

Stanoiu, M

Utsuno, Y

Penionzhkevich, YE

Achouri, NL

Angelique, JC

Borcea, C

Bourgeois, C

Daugas, JM

De Oliveira-Santos, F

Dlouhy, Z

Donzaud, C

Duprat, J

Elekes, Z

Grévy, S

Guillemaud-Mueller, D

Leenhardt, S

Lewitowicz, M

Lukyanov, SM

Mittig, W

Porquet, MG

Pougheon, F

Roussel-Chomaz, P

Savajols, H

Sobolev, Y

Stodel, C

Timár, J

机构：

[1] CNRS, IN2P3, Inst Phys Nucl, F-91406 Orsay, France

[2] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary

[3] GANIL, F-14076 Caen, France

[4] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[5] Japan Atom Energy Res Inst, Tokai, Ibaraki 3190033, Japan

[6] Joint Inst Nucl Res, FLNR, Dubna 141980, Russia

[7] Phys Corpusculaire Lab, F-14021 Caen, France

[8] Phys Corpusculaire Lab, F-14000 Caen, France

[9] IFIN HH, R-76900 Bucharest, Romania

[10] AS CR, Inst Phys Nucl, CZ-25068 Rez, Czech Republic

[11] CNRS, IN2P3, CSNSM, F-91405 Orsay, France

[12] Univ Paris 11, F-91405 Orsay, France

来源：

PHYSICAL REVIEW C | 2005年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.72.054316

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Nuclear structure of the neutron rich Ne25-29 nuclei has been investigated through the in-beam gamma-ray spectroscopy technique using fragmentation reactions of both stable and radioactive beams. Level schemes have been deduced for these Ne isotopes. In order to examine the importance of intruder fp configurations, they are compared to shell model calculations performed either in the restricted sd or in the larger sdpf valence space. The Ne-25,Ne-26 and Ne-27 nuclei were found to be in agreement with the sd shell model calculations, whereas Ne-28 exhibits signatures of the intruder fp shell contribution.

引用

页数：7

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