High-spin excitations of atomic nuclei

	High-spin excitations of atomic nuclei
	Xu, FR
刊名	HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
	2004-12
卷号	28 页码:11-15
关键词	cranking shell model high spin high-K isomer shape coexistence multi-quasiparticle excitation
ISSN号	0254-3052
英文摘要	We used the cranking shell model to investigate the high-spin motions and structures of atomic nuclei. We focus the collective rotations of the A similar to 50, 80 and 110 nuclei. The A similar to 50 calculations show complicated g spectroscopy, which can have significant vibration effects. The A approximate to 80 N approximate to Z nuclei show rich shape coexistences with prolate and oblate rotational bands. The A approximate to 110 nuclei near the r-process path can have well-deformed oblate shapes that become yrast and more stable with increasing rotational frequency. As another important investigation, we used the configuration-constrained adiabatic method to calculate the multi-quasiparticle high-K states in the A similar to 130, 180 and superheavy regions. The calculations show significant shape polarizations due to quasi-particle excitations for soft nuclei, which should be considered in the investigations of high-K states. We predicted some important high-K isomers, e.g., the 8(-) isomers in the unstable nuclei of Dy-140 and Pb-188, which have been confirmed in experiments. In superheavy nuclei, our calculations show systematic existence of high-K states. The high-K excitations can increase the productions of synthesis and the survival probabilities of superheavy nuclei.
WOS关键词	INTERACTING BOSON MODEL ; SIGNATURE INVERSION ; ROTATIONAL BANDS ; STATES ; TRIAXIALITY ; ISOTOPES
WOS研究方向	Physics
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000229226900003
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/56916]
专题	中国科学院近代物理研究所
通讯作者	Xu, FR
作者单位	1.Natl Lab Heavy Ion Phys, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 2.Peking Univ, Sch Phys, MOE Key Lab, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Xu, FR. High-spin excitations of atomic nuclei[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2004,28:11-15.
APA	Xu, FR.(2004).High-spin excitations of atomic nuclei.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,28,11-15.
MLA	Xu, FR."High-spin excitations of atomic nuclei".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 28(2004):11-15.