Octupole collectivity in the ground band of [sup 148]Nd

Journal Article · Mon Sep 27 04:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.1990· OSTI ID:6114847

Ibbotson, R; White, C A; Czosnyka, T; Butler, P A; Clarkson, N; Cline, D; Cunningham, R A; Devlin, M; Helmer, K G; Hoare, T H; Hughes, J R; Jones, G D; Kavka, A E; Kotlinski, B; Poynter, R J; Regan, P; Vogt, E G; Wadsworth, R; Watson, D L; Wu, C Y ^[1]

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1. Nuclear Structure Research Laboratory, University of Rochester, Rochester, New York 14627 (United States) Oliver Lodge Laboratory, Univeristy of Liverpool, Liverpool L69 3BX (United Kingdom) Warsaw University, 02-097 Warszawa, Banacha 4 (Poland) Science and Engineering Research Council, Daresbury Laboratory, Warrington WA4 4AD (United Kingdom) Department of Physics, University of York, York YO1 5DD (United Kingdom)

[ital E]3 matrix elements have been determined for transitions between states up to [ital I][sup [pi]]=13[sup [minus]] in [sup 148]Nd, providing direct evidence for strong octupole collectivity in a rotational band. These values, as well as the corresponding [ital E]1 and [ital E]2 matrix elements, were obtained from Coulomb excitation data using [sup 58]Ni and [sup 92]Mo ions, projectile excitation using a [sup 208]Pb target, and from recoil distance lifetime measurements. The results are consistent with collective model predictions for [sup 148]Nd assuming intrinsic quadrupole and octupole moments of [ital Q][sub 20][approx]400 [ital e] fm[sup 2] and [ital Q][sub 30][approx]1500 [ital e] fm[sup 3]. The [ital E]3 strength coupling the negative-parity states to the [beta] band is found to be appreciable.

• OSTI ID: 6114847
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:13; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663120 -- Nuclear Structure Models & Methods-- (1992-)
663220* -- Electromagnetic Transitions-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BAND THEORY
CHARGED-PARTICLE REACTIONS
COULOMB EXCITATION
E1-TRANSITIONS
E2-TRANSITIONS
E3-TRANSITIONS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEAD 208 TARGET
LIFETIME
MATRIX ELEMENTS
MOLYBDENUM 92 REACTIONS
MULTIPOLE TRANSITIONS
MULTIPOLES
NEODYMIUM 148
NEODYMIUM ISOTOPES
NICKEL 58 REACTIONS
NUCLEAR REACTIONS
NUCLEI
OCTUPOLES
RARE EARTH NUCLEI
RECOILS
STABLE ISOTOPES
TARGETS