Test of the critical point symmetry X(5) in neutron deficient osmium isotopes at A approximate to 180

	Test of the critical point symmetry X(5) in neutron deficient osmium isotopes at A approximate to 180
	Dewald, A.1; Moeller, O.; Melon, B.; Pissulla, T.; Saha, B.; Heinze, S.; Jolie, J.; Zell, K. O.; Petkov, P.2; Bazzacco, D.3
	2006
关键词	critical point symmetry lifetimes transition probabilities collective models
卷号	831
页码	195-+
英文摘要	The energy spectra and relative transition rates of Os-176,Os-178,Os-180 were found to be very similar to the values calculated in the framework of the critical point symmetry X(5). In order to enable more stringent tests, including also absolute transition probabilities, two coincidence RDDS lifetime measurements were performed at the Laboratori Nazionali di Legnaro with the GASP spectrometer using the (152,154)sm(Si-29,5n) Os-176,Os-171 reactions. The deduced transition quadrupole moments in Os-178 agree well with the X(5) predictions. For Os-176 only preliminary results were obtained so far. These preliminary data support an X(5) like structure also in the case of Os-176. The experimental data of both nuclei are compared to calculations in the framework of the interacting boson model (IBM) and of the general collective model (GCM).
会议录	FRONTIERS IN NUCLEAR STRUCTURE ASTROPHYSICS, AND REACTIONS: FINUSTAR
会议录出版者	AMER INST PHYSICS
会议录出版地	2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
语种	英语
资助项目	European Union TMR Programme[HPRI-CT 1999 00083]
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS记录号	WOS:000237323700035
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/57385]
专题	中国科学院近代物理研究所
通讯作者	Dewald, A.
作者单位	1.Univ Cologne, Inst Kernphys, Zulpicher Str 77, D-50937 Cologne, Germany 2.Inst Nucl Res & Nucl Energy Sofia, Sofia, Bulgaria 3.INFN, Padua, Italy 4.INFN, Lab Nazionali Legnaro, Legnaro, Italy 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China 6.NCSR, Inst Nucl Phys, Athens, Greece
推荐引用方式 GB/T 7714	Dewald, A.,Moeller, O.,Melon, B.,et al. Test of the critical point symmetry X(5) in neutron deficient osmium isotopes at A approximate to 180[C]. 见:.