DECAY OF THE r-PROCESS NUCLIDES 137,138,139Sb AND THE A=130 SOLAR r-PROCESS ABUNDANCE PEAK

被引：0

作者：

Arndt, O. ^{[1
]}

Kratz, K. -L. ^{[1
]}

Farouqi, K. ^{[1
]}

Pfeiffer, B. ^{[1
]}

Hennrich, S. ^{[1
]}

Jost, C. J. ^{[1
]}

Walters, W. B. ^{[2
]}

Stoyer, M. A. ^{[2
]}

Koster, U. ^{[3
]}

Fedosseev, V. N. ^{[4
]}

Hecht, A. A. ^{[2
,5
]}

Shergur, J. ^{[2
,5
]}

Hoteling, N. ^{[2
,5
]}

Wohr, A. ^{[2
,5
]}

机构：

[1] Max Planck Inst Chem, Otto Hahn Inst, Joh J Becherweg 27, D-55128 Mainz, Germany

[2] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

[3] Inst Laue Langevin, F-38042 Grenoble, France

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

[5] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

来源：

CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS | 2013年

关键词：

NUCLEAR-DATA SHEETS; NUCLEOSYNTHESIS; ISOTOPES;

D O I：

暂无

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：

Half-life and beta-delayed neutron branching values of 492(25) ms and 49(8)%, 350(15) ms and 72(8)%, and 93(13) ms and 90(10)% for the r-process nuclei (137,138,139)b, respectively, have been measured at CERN/ISOLDE by simultaneously counting beta particles and beta-delayed neutrons. The sources were prepared by using the selective ionization of Sb with the Resonance Ionization Laser Ion Source and the High-Resolution Mass Separator. These new half-lives and beta-delayed neutron branching values are compared with calculated values for both spherical and deformed shapes. The data have been incorporated into parameterized nucleosynthesis calculations of the r-process in high-entropy winds of core collapse supernovae in order to study the properties of the A=130 Solar-System r-process abundance peak.

引用

页码：314 / 319

页数：6

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