Evidence for particle-hole excitations in the triaxial strongly-deformed well of {sup 163}Tm.

Journal Article · Mon Jan 01 00:00:00 EST 2007 · Phys. Lett. B

DOI:https://doi.org/10.1016/j.physletb.2007.01.057· OSTI ID:915325

Pattabiraman, N S; Gu, Y; Frauendorf, S; Garg, U; Li, T; Nayak, B K; Zhu, S; Wang, X; Ghugre, S S; Janssens, R V. F.; Chakrawarthy, R S; Whitehead, M; Macchiavelli, A O; LLNL, Schuster; BNL,

Two interacting, strongly-deformed triaxial (TSD) bands have been identified in the Z=69 nucleus {sup 163}Tm. This is the first time that interacting TSD bands have been observed in an element other than the Z=71 Lu nuclei, where wobbling bands have been previously identified. The observed TSD bands in {sup 163}Tm appear to be associated with particle--hole excitations, rather than wobbling. Tilted-axis cranking (TAC) calculations reproduce all experimental observables of these bands reasonably well and also provide an explanation for the presence of wobbling bands in the Lu nuclei, and their absence in the Tm isotopes.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC); National Science Foundation (NSF); FOR
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 915325
• Report Number(s): ANL/PHY/JA-56692; PYLBAJ; TRN: US0804924
• Journal Information: Phys. Lett. B, Vol. 647, Issue 2007; ISSN 0370-2693
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DEFORMED NUCLEI
HOLES
THULIUM 163
EXCITATION