6828Ni40:: Magicity versus superfluidity -: art. no. 092501

被引：258

作者：

Sorlin, O

Leenhardt, S

Donzaud, C

Duprat, J

Azaiez, F

Nowacki, F

Grawe, H

Dombrádi, Z

Amorini, F

Astier, A

Baiborodin, D

Belleguic, M

Borcea, C

Bourgeois, C

Cullen, DM

Dlouhy, Z

Dragulescu, E

Górska, M

Grévy, S

Guillemaud-Mueller, D

Hagemann, G

Herskind, B

Kiener, J

Lemmon, R

Lewitowicz, M

Lukyanov, SM

Mayet, P

Santos, FD

Pantalica, D

Penionzhkevich, YE

Pougheon, F

Poves, A

Redon, N

Saint-Laurent, MG

Scarpaci, JA

Sletten, G

Stanoiu, M

Tarasov, O

Theisen, C

机构：

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

[2] Univ Strasbourg 1, IReS, CNRS, IN2P3, F-67037 Strasbourg, France

[3] GSI Darmstadt, D-64200 Darmstadt, Germany

[4] Inst Nucl Res, H-4001 Debrecen, Hungary

[5] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95123 Catania, Italy

[6] Inst Phys Nucl, F-69622 Villeurbanne, France

[7] Acad Sci Czech Republ, Inst Nucl Phys, CZ-25068 Rez, Czech Republic

[8] IFIN HH, ROM-76900 Bucarest Magurele, Romania

[9] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England

[10] ISMRA Univ Caen, LPC, F-14050 Caen, France

[11] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[12] Ctr Spectrometrie Nucl & Spectrometrie Masse, F-91405 Orsay, France

[13] CRLC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England

[14] GANIL, F-14076 Caen, France

[15] Dubna Joint Nucl Res Inst, FLNR, Dubna 141980, Moscow Region, Russia

[16] Univ Autonoma Madrid, Dept Fis Teor, ES-28049 Madrid, Spain

[17] CEA Saclay, DAPNIA, SPhN, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.88.092501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The neutron-rich Ni-66,Ni-68 have been produced at GANIL via interactions of a 65.9A MeV Zn-70 beam with a Ni-58 target. Their reduced transition probability B(E2; 0(1)(+) --> 2(+)) has been measured for the first time by Coulomb excitation in a Pb-208 target at intermediate energy. The B(E2) value for Ni-68(40) is unexpectedly small. An analysis in terms of large scale shell model calculations stresses the importance of proton core excitations to reproduce the B(E2) values and indicates the erosion of the N = 40 harmonic-oscillator subshell by neutron-pair scattering.

引用

页数：5

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