Measured magnetic moments and shape coexistence in the neutron-deficient nuclei {sup {bold 184,186,188}}{ital P}{ital t}

Journal Article · Fri Mar 01 00:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2246· OSTI ID:286086

Stuchbery, A E; Anderssen, S S; Byrne, A P; Davidson, P M; Dracoulis, G D; Lane, G J ^[1]

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1. Department of Nuclear Physics, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT 0200 (Australia)

A novel implantation-decay technique has been employed to measure the magnetic moments of the 2{sup +}{sub 1} states in the neutron-deficient nuclei {sup 184}Pt, {sup 186}Pt, and {sup 188}Pt. The magnetic moment systematics for the even Pt isotopes now extend from {sub 78}{sup 184}Pt{sub 106} to {sub 78}{sup 198}Pt{sub 106}, spanning the upper half of the valence neutron shell. Despite the prolate-to-oblate shape transition near {ital A}=190, they remain remarkably constant. The {ital g}(2{sup +}{sub 1}) values for {sup 184,186,188}Pt are consistent with shape-coexistence models in which the deformed configuration has a larger effective number of valence protons than the less-deformed configuration. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286086
• Journal Information: Physical Review Letters, Vol. 76, Issue 13; Other Information: PBD: Mar 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NEUTRON-DEFICIENT ISOTOPES
MAGNETIC MOMENTS
PLATINUM 184
PLATINUM 186
PLATINUM 188
SHAPE
DEFORMED NUCLEI