Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes

被引：180

作者：

Hannawald, M ^{[1
]}

Kautzsch, T

Wöhr, A

Walters, WB

Kratz, KL

Fedoseyev, VN

Mishin, VI

Böhmer, W

Pfeiffer, B

Sebastian, V

Jading, Y

Köster, U

Lettry, J

Ravn, HL

机构：

[1] Univ Mainz, Inst Kernchem, D-55099 Mainz, Germany

[2] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

[3] Univ Maryland, Dept Chem, College Pk, MD 20742 USA

[4] Russian Acad Sci, Inst Spect, RUS-142092 Troitzk, Russia

[5] Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[6] CERN, CH-1211 Geneva 23, Switzerland

[7] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.82.1391

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The use of chemically selective laser ionization combined with beta-delayed neutron counting at CERN/ISOLDE has permitted identification and half-life measurements for 623-ms Mn-61 up through 14-ms Mn-69. The measured half-lives are found to be significantly longer near N = 40 than the values calculated with a quasiparticle random-phase-approximation shell model. Gamma-ray singles and coincidence spectroscopy has been performed for Mn-64,Mn-66 decays to levels of Fe-64,Fe-66, revealing a significant drop in the energy of the first 2(+) state in these nuclides that suggests an unanticipated increase in collectivity mar N = 40. [S0031-9007(99)08463-X].

引用

页码：1391 / 1394

页数：4

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