A search for low-lying mixed symmetry states in 140Nd

被引：0
作者：
Williams, E. [1 ]
Casperson, R. J. [1 ]
Werner, V. [1 ]
Ai, H. [1 ]
Boutachkov, P. [2 ]
Chamberlain, M. [1 ,3 ]
Guerdal, G. [1 ,4 ]
Heinz, A. [1 ]
McCutchan, E. A. [1 ]
Qian, J. [1 ]
Winkler, R. [1 ]
机构：
[1] Yale Univ, WNSL, 272 Whitney Ave, New Haven, CT 06520 USA
[2] Rutgers State Univ, Dept Phys & Astrnom, New Brunswick, NJ 08903 USA
[3] Univ Surrey, Dept phys, Guildford GU2 5XH, Surrey, England
[4] Clark Univ, Worcester, MA 01610 USA
来源：
CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS | 2009年 / 1090卷
关键词：
mixed symmetry states; collective models; angular correlations; PROTON; SCATTERING; MO-94; EXCITATIONS; SHELL; MODEL;
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Multipole mixing ratios for transitions between excited 2(+) states and the 2(1)(+) state in Nd-140 are measured using angular correlation techniques for beta decay reactions. Two transitions with dominant M1 components are identified, and the higher-lying 2(+) states involved in these transitions are presented as candidates for the one-phonon mixed-symmetric 2(+) state in Nd-140. Assuming pure two-state mixing between the one-phonon 2(+) state and a presumed three-phonon symmetric state yields a mixing matrix element between these states, which is discussed in terms of shell effects on mixed-symmetric behavior in the N = 80 isotones.
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页码：268 / +
页数：2
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