In-beam spectroscopy of medium- and high-spin states in 133Ce

被引：8

作者：

Ayangeakaa, A. D. ^{[1
,3
]}

Garg, U. ^{[1
]}

Petrache, C. M. ^{[2
]}

Guo, S. ^{[2
]}

Zhao, P. W. ^{[3
]}

Matta, J. T. ^{[1
,9
]}

Nayak, B. K. ^{[1
,10
]}

Patel, D. ^{[1
,11
]}

Janssens, R. V. F. ^{[3
]}

Carpenter, M. P. ^{[3
]}

Chiara, C. J. ^{[3
,4
,12
]}

Kondev, F. G. ^{[5
]}

Lauritsen, T. ^{[3
]}

Seweryniak, D. ^{[3
]}

Zhu, S. ^{[3
]}

Ghugre, S. S. ^{[6
]}

Palit, R. ^{[7
,8
]}

机构：

[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[2] Univ Paris Saclay, CNRS, IN2P3, Ctr Sci Nucl & Sci Mat, Bat 104-108, F-91405 Orsay, France

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

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

[5] Argonne Natl Lab, Nucl Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA

[6] UGC DAE Consortium Sci Res, Kolkata 700098, India

[7] Tata Inst Fundamental Res, Homi Bhabha Rd, Bombay 400005, Maharashtra, India

[8] Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA

[9] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37830 USA

[10] Bhabha Atom Res Ctr, Div Nucl Phys, Bombay 400085, Maharashtra, India

[11] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA

[12] US Army Res Lab, Adelphi, MD 20783 USA

来源：

PHYSICAL REVIEW C | 2016年 / 93卷 / 05期

基金：

美国国家科学基金会;

关键词：

COINCIDENCE DATA SETS; ROTATIONAL BANDS; LIFETIME MEASUREMENTS; MAGNETIC ROTATION; COLLECTIVITY;

D O I：

10.1103/PhysRevC.93.054317

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：

Medium and high-spin states in Ce-133 were investigated using the Cd-116(Ne-22, 5n) reaction and the Gammasphere array. The level scheme was extended up to an excitation energy of similar to 22.8 MeV and spin 93/2 (h) over bar. Eleven bands of quadrupole transitions and two new dipole bands are identified. The connections to low-lying states of the previously known, high-spin triaxial bands were firmly established, thus fixing the excitation energy and, in many cases, the spin parity of the levels. Based on comparisons with cranked Nilsson-Strutinsky calculations and tilted axis cranking covariant density functional theory, it is shown that all observed bands are characterized by pronounced triaxiality. Competing multiquasiparticle configurations are found to contribute to a rich variety of collective phenomena in this nucleus.

引用

页数：19

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