Non-termination of yrast bands at maximum configuration spin in 73Kr

被引：4

作者：

Steinhardt, T. ^{[1
]}

Eberth, J. ^{[1
]}

Thelen, O. ^{[1
]}

Schnare, H. ^{[2
]}

Schwengner, R. ^{[2
]}

Plettner, C. ^{[2
]}

Kaeubler, L. ^{[2
]}

Doenau, F. ^{[2
]}

Algora, A. ^{[3
]}

de Angelis, G. ^{[3
]}

Gadea, A. ^{[3
]}

Napoli, D. R. ^{[3
]}

Hausmann, M. ^{[4
]}

Jungclaus, A. ^{[5
]}

Lieb, K. P. ^{[4
]}

Mueller, G. A. ^{[4
]}

Jenkins, D. G. ^{[6
]}

Wadsworth, R. ^{[6
]}

Wilson, A. N. ^{[6
]}

机构：

[1] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

[2] Forschungszentrum Dresden Rossendorf, Inst Strahlenphys, D-01314 Dresden, Germany

[3] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy

[4] Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany

[5] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain

[6] Univ York, Dept Phys, York Y01 5DD, N Yorkshire, England

来源：

PHYSICAL REVIEW C | 2010年 / 81卷 / 05期

关键词：

ROTATIONAL BANDS; SHAPE COEXISTENCE; IDENTIFICATION; EUROBALL; DECAY;

D O I：

10.1103/PhysRevC.81.054307

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：

High-spin states in Kr-73 were studied at the XTU tandem accelerator of the Laboratori Nazionali di Legnaro using the reaction Ca-40(Ca-40,alpha 2pn) at a beam energy of 185 MeV. Gamma rays were detected with the EUROBALL spectrometer. Particle detection enabled us to identify the reaction channel leading to Kr-73. The yrast bands of positive and negative parity were established up to probable spins of 61/2(+) and 63/2(-), respectively. The energies of the two identified bands agree well with the predictions of the configuration-dependent Cranked Nilsson-Strutinsky approximation and indicate that the nucleus remains collective up to the maximum spins of the respective high-spin configurations. The positive-parity band represents one of the rare cases where band non-termination at the highest spin of the configuration could be established experimentally.

引用

页数：7