Is the 7/21- Isomer State of 43S Spherical?

被引：26

作者：

Chevrier, R. ^{[1
]}

Daugas, J. M. ^{[1
]}

Gaudefroy, L. ^{[1
]}

Ichikawa, Y. ^{[2
]}

Ueno, H. ^{[2
]}

Hass, M. ^{[3
]}

Haas, H. ^{[4
]}

Cottenier, S. ^{[5
]}

Aoi, N. ^{[6
]}

Asahi, K. ^{[7
]}

Balabanski, D. L. ^{[8
]}

Fukuda, N. ^{[2
]}

Furukawa, T. ^{[9
]}

Georgiev, G. ^{[10
]}

Hayashi, H. ^{[7
]}

Iijima, H. ^{[7
]}

Inabe, N. ^{[2
]}

Inoue, T. ^{[7
]}

Ishihara, M. ^{[2
]}

Ishii, Y. ^{[7
]}

Kameda, D. ^{[2
]}

Kubo, T. ^{[2
]}

Nanao, T. ^{[7
]}

Neyens, G. ^{[11
]}

Ohnishi, T. ^{[2
]}

Rajabali, M. M. ^{[11
]}

Suzuki, K. ^{[7
]}

Takeda, H. ^{[2
]}

Tsuchiya, M. ^{[7
]}

Vermeulen, N. ^{[11
]}

Watanabe, H. ^{[2
]}

Yoshimi, A. ^{[12
]}

机构：

[1] DIF, CEA, DAM, F-91297 Arpajon, France

[2] RIKEN Nishina Ctr, Wako, Saitama 3510198, Japan

[3] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel

[4] CERN PH IS, CH-1211 Geneva 23, Switzerland

[5] Univ Ghent, Ctr Mol Modeling, Dept Mat Sci & Engn, BE-9052 Zwijnaarde, Belgium

[6] Osaka Univ, Res Ctr Nucl Phys, Osaka 5670047, Japan

[7] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

[8] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BU-1784 Sofia, Bulgaria

[9] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

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

[11] K U Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

[12] Okayama Univ, Okayama 7008530, Japan

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 16期

关键词：

NEUTRON-RICH NUCLEI; N=28 SHELL CLOSURE; QUADRUPOLE-MOMENT; FRAGMENTATION; INVERSION; STABILITY; PYRITE; BORDER; ISLAND; FE-57;

D O I：

10.1103/PhysRevLett.108.162501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the spectroscopic quadrupole moment measurement of the 7/2(1)(-) isomeric state in S-43(16)27 [E* = 320.5(5) keV, T-1/2 = 415(3) ns], using the time dependent perturbed angular distribution technique at the RIKEN RIBF facility. Our value, vertical bar Q(s) vertical bar = 23(3) efm(2), is larger than that expected for a single-particle state. Shell model calculations using the modern SDPF-U interaction for this mass region reproduce remarkably well the measured vertical bar Q(s) vertical bar, and show that non-negligible correlations drive the isomeric state away from a purely spherical shape.

引用

页数：5

共 38 条

[1] Collapse of the N=28 shell closure in 42Si [J].

Bastin, B. ;

Grevy, S. ;

Sohler, D. ;

Sorlin, O. ;

Dombradi, Zs. ;

Achouri, N. L. ;

Angelique, J. C. ;

Azaiez, F. ;

Baiborodin, D. ;

Borcea, R. ;

Bourgeois, C. ;

Buta, A. ;

Buerger, A. ;

Chapman, R. ;

Dalouzy, J. C. ;

Dlouhy, Z. ;

Drouard, A. ;

Elekes, Z. ;

Franchoo, S. ;

Iacob, S. ;

Laurent, B. ;

Lazar, M. ;

Liang, X. ;

Lienard, E. ;

Mrazek, J. ;

Nalpas, L. ;

Negoita, F. ;

Orr, N. A. ;

Penionzhkevich, Y. ;

Podolyak, Zs. ;

Pougheon, F. ;

Roussel-Chomaz, P. ;

Saint-Laurent, M. G. ;

Stanoiu, M. ;

Stefan, I. ;

Nowacki, F. ;

Poves, A. .

PHYSICAL REVIEW LETTERS, 2007, 99 (02)

[2] THE CRYSTAL ENERGY OF PYRITE [J].

BIRKHOLZ, M .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (29) :6227-6240

[3]

Blaha P., 1999, WIEN2K AUGMENTED PLA

[4] The N=28 shell closure;: from N = Z to the neutron drip line [J].

Caurier, E ;

Nowacki, F ;

Poves, A .

NUCLEAR PHYSICS A, 2004, 742 (1-2) :14-26

[5]

Caurier E, 1999, ACTA PHYS POL B, V30, P705

[6]

CAURIER E, 1989, ANTOINE CODE

[7]

Cottenier S., 2002, Density functional theory and the family of (L)APW methods: a step-by-step introduction

[8] g factor of the 44Cl ground state: Probing the reduced Z=16 and N=28 gaps [J].

De Rydt, M. ;

Daugas, J. M. ;

Santos, F. de Oliveira ;

Gaudefroy, L. ;

Grevy, S. ;

Kameda, D. ;

Kumar, V. ;

Lozeva, R. ;

Mertzimekis, T. J. ;

Morel, P. ;

Nagatomo, T. ;

Neyens, G. ;

Perrot, L. ;

Sorlin, O. ;

Stoedel, C. ;

Thomas, J. C. ;

Vermeulen, N. ;

Vingerhoets, P. .

PHYSICAL REVIEW C, 2010, 81 (03)

[9] BETA-DECAY OF NA-27-32 AND THEIR DESCENDANTS [J].

DETRAZ, C ;

GUILLEMAUD, D ;

HUBER, G ;

KLAPISCH, R ;

LANGEVIN, M ;

NAULIN, F ;

THIBAULT, C ;

CARRAZ, LC ;

TOUCHARD, F .

PHYSICAL REVIEW C, 1979, 19 (01) :164-176

[10] DETERMINATION OF THE NUCLEAR-QUADRUPOLE MOMENT OF FE-57 [J].

DUFEK, P ;

BLAHA, P ;

SCHWARZ, K .

PHYSICAL REVIEW LETTERS, 1995, 75 (19) :3545-3548

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