Complete spectroscopy of the 162Dy nucleus

被引：27

作者：

Aprahamian, A ^{[1
]}

Wu, X

Lesher, SR

Warner, DD

Gelletly, W

Börner, HG

Hoyler, F

Schreckenbach, K

Casten, RF

Shi, ZR

Kusnezov, D

Ibrahim, M

Macchiavelli, AO

Brinkman, MA

Becker, JA

机构：

[1] Univ Notre Dame, Inst Struct & Nucl Astrophys, Notre Dame, IN 46556 USA

[2] Daresbury Lab, Warrington WA4 4AD, Cheshire, England

[3] Univ Surrey, Guildford GU2 5XH, Surrey, England

[4] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[5] Yale Univ, Wright Nucl Struct Lab, New Haven, CT 06520 USA

[6] Inst Atom Energy, Beijing 102413, Peoples R China

[7] Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[8] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

NUCLEAR PHYSICS A | 2006年 / 764卷

基金：

美国国家科学基金会;

关键词：

nuclear reactions; Dy-161(n; gamma); E=0.03-2; MeV; measured E gamma; I gamma; E(ce); I(ce); Gd-160; (alpha; 2n); E=256; gamma gamma-coin; Dy-162 deduced levels; K; J; pi; lCC; configurations; collective features; complete spectroscopy; Ritz combination principle;

D O I：

10.1016/j.nuclphysa.2005.09.020

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：

States in Dy-162 have been populated by (n,gamma), (n, e(-)), and (alpha, 2n) reactions in order to characterize a complete set of low K bands below 2 MeV. The (n, gamma) and (n, e(-)) measurements were made using high precision curved crystal and beta(-) spectrometers. Gamma-gamma coincidence and DCO measurements were made following the (alpha, 2n) reaction using all array of Compton-suppressed Ge detectors. Using all these data and employing the Ritz combination principle, a level scheme was developed which represents one of the most complete and extensive spectra of levels available for comparison with nuclear models. The observed positive and negative parity bands are discussed in terms of collective quadrupole and octupole vibrational excitations as well as 2 quasi-particle excitations. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：42 / 78

页数：37

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