https://doi.org/10.1051/epjconf/20136301017
Pairing and Blocking in High-K Isomers: Variation of the Collective Parameter gR
University of Tennessee, Department of Physics and Astronomy Knoxville, TN 37996, USA and Department of Physics, Oxford University, Oxford, OX1 3PU, United Kingdom
a e-mail: n.stone1@physics.ox.ac.uk
Published online: 19 December 2013
Using the principle of additivity, the quasi-particle contribution to magnetism in high-K isomers of Lu - Re has been estimated. Based on these estimates band structure branching ratio data is used to explore the behavior of the collective contribution as the number and neutron/proton nature (Np, Nn), of the quasi-particle excitations, change. A striking systematic variation of the collective g-factor gR with the difference, Np – Nn, is revealed. Basic ideas of pairing, its quenching by quasi-particle excitation and the consequent changes to moment of inertia and collective magnetism are discussed. The new found systematic behaviour of gR opens a fresh window on these effects amenable to detailed theoretical investigation.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
