High-spin spectrum of 24Mg studied through multiparticle angular correlations

被引:7
|
作者
Diffenderfer, E. S. [1 ]
Baby, L. T. [1 ]
Santiago-Gonzalez, D. [1 ]
Ahsan, N. [1 ]
Rojas, A. [1 ]
Volya, A. [1 ]
Wiedenhoever, I. [1 ]
Wuosmaa, A. H. [2 ]
Carpenter, M. P. [3 ]
Janssens, R. V. F. [3 ]
Lister, C. J. [3 ]
Devlin, M. [4 ]
Sarantites, D. G. [4 ]
Sobotka, L. G. [4 ]
Utsuno, Y. [5 ]
Horoi, M. [6 ]
机构
[1] Florida State Univ, Tallahassee, FL 32306 USA
[2] Western Michigan Univ, Kalamazoo, MI 49008 USA
[3] Argonne Natl Lab, Argonne, IL 60439 USA
[4] Washington Univ, St Louis, MO 63130 USA
[5] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan
[6] Cent Michigan Univ, Mt Pleasant, MI 48859 USA
来源
PHYSICAL REVIEW C | 2012年 / 85卷 / 03期
基金
美国国家科学基金会;
关键词
STATES; CONTINUUM;
D O I
10.1103/PhysRevC.85.034311
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
We describe the investigation of high-spin states in Mg-24 populated with the C-12(O-16, alpha)Mg-24 reaction at 62- and 68-MeV beam energy. The excited states were established through the coincident detection of up to four alpha and gamma particles in complete decay cascades toward a final state of angular momentum zero, the ground state of either Ne-20 or O-16. We describe a new analysis method for the angular correlations in such events and apply it with the goal to assign spin and parity to alpha-unbound states in Mg-24. We establish a number of high-spin, natural-parity states between spins 6 and 12, including the lowest known 10(+) and 12(+) levels. The energy systematics of positive- and negative-parity high-spin states are compared to the predictions of modern shell-model calculations. DOI: 10.1103/PhysRevC.85.034311
引用
收藏
页数:17
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