Beta-decay half-lives of new neutron-rich isotopes of Re, Os and Ir approaching the r-process path near N=126

被引：26

作者：

Kurtukian-Nieto, T. ^{[1
,4
]}

Benlliure, J. ^{[1
]}

Schmidt, K. -H. ^{[2
]}

Audouin, L. ^{[3
]}

Becker, F. ^{[2
]}

Blank, B. ^{[4
]}

Borzov, I. N. ^{[2
]}

Casarejos, E. ^{[1
]}

Farget, F. ^{[5
]}

Fernandez-Ordonez, M. ^{[1
]}

Giovinazzo, J. ^{[4
]}

Henzlova, D. ^{[2
]}

Jurado, B. ^{[4
]}

Langanke, K. ^{[2
,6
]}

Martinez-Pinedo, G. ^{[2
,6
]}

Pereira, J. ^{[1
]}

Yordanov, O. ^{[2
]}

机构：

[1] Univ Santiago de Compostela, Dept Fis Particulas, E-15782 Santiago De Compostela, Spain

[2] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

[3] Inst Phys Nucl, F-91406 Orsay, France

[4] Univ Bordeaux, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France

[5] GANIL, F-14076 Caen 5, France

[6] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

来源：

EUROPEAN PHYSICAL JOURNAL A | 2014年 / 50卷 / 09期

关键词：

NUCLEI; SEPARATION; SN-132;

D O I：

10.1140/epja/i2014-14135-5

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：

Heavy neutron-rich nuclei close to N = 126 were produced by fragmentation of a 1AGeV Pb-208 beam at the FRS at GSI. The beta-decay half-lives of 7 nuclides have been determined using a novel numerical analysis method. The half-lives of Ir-202,Ir-199, Os-200,Os-199 and Re-196 are reported for the first time. The comparison of the data with model calculations provides indications on the importance of first-forbidden transitions on the beta-decay of nuclei around N = 126 and Z < 82.

引用

页码：1 / 8

页数：8

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