Elastic alpha-particle resonances as evidence of clustering at high excitation in 40Ca

被引：9

作者：

Norrby, M. ^{[1
]}

Lonnroth, T. ^{[1
]}

Goldberg, V. Z. ^{[2
,3
]}

Rogachev, G. V. ^{[4
]}

Golovkov, M. S. ^{[5
]}

Kallman, K. -M. ^{[1
]}

Lattuada, M. ^{[6
,7
]}

Perov, S. V. ^{[5
]}

Romano, S. ^{[6
]}

Skorodumov, B. B. ^{[1
,2
]}

Tiourin, G. P. ^{[8
]}

Trzaska, W. H. ^{[8
]}

Tumino, A. ^{[6
]}

Vorontsov, A. N. ^{[2
]}

机构：

[1] Abo Akad Univ, Dept Phys, FIN-20500 Turku, Finland

[2] Russian Res Ctr Kurchatov, Moscow, Russia

[3] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA

[4] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[5] Joint Inst Nucl Res, Dubna, Russia

[6] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95129 Catania, Italy

[7] Univ Catania, Dipartimento Fis & Astron, Catania, Italy

[8] Univ Jyvaskyla, Dept Phys, Jyvaskyla, Finland

来源：

EUROPEAN PHYSICAL JOURNAL A | 2011年 / 47卷 / 08期

基金：

芬兰科学院; 美国国家科学基金会;

关键词：

HEAVY-ION REACTIONS; INVERSE-KINEMATICS; LIGHT-NUCLEI; MEAN-FIELD; STATES; MODEL; SCATTERING; AR-36; BEHAVIOR; NE-20;

D O I：

10.1140/epja/i2011-11096-1

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：

The elastic-scattering reaction Ar-36 + alpha was studied using the Thick Target Inverse Kinematics technique. Data were taken at a beam energy of 150MeV in a reaction chamber filled with He-4 gas, corresponding to the excitation region of 12-20MeV in Ca-40. Using a simplified R-matrix method of analysis energies, widths and spin assignments were obtained for 137 resonances. The structure is discussed within the concept of alpha-cluster structure in the quasi-continuum of Ca-40 and is compared to other nuclei in the same mass region.

引用

页数：7

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