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

页数：17

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