Systematics of rotational bands withK=0 in odd-odd nuclei

Abstract

An empirical rule for the sign of the Newby shifts in K = 0 rotational bands from pure j-shells is proposed. An examination of 42 experimental K = 0 bands demonstrates the usefulness of this rule. A fit of the parameters in the residual neutron-proton interaction to the experimental Newby shifts shows the importance of the space exchange term for a good description of the Newby shifts.

Low-lying levels of 188Re nucleus from γγ-coincidence measurements

“…[7], have been included in the well-known residual NN-interaction data evaluations [24,[28][29][30], extended to include the data on some oddodd iridium isotopes in [31]. The present work provides a valuable additional information for the study of residual NN-interaction in nuclei belonging to the deformation phase transition region.…”

Nuclear structure models: applications and development

“…If a "standard form" of the residual interaction was included (using either finite range or zero range interactions taken from ref. [2] or [3]) the agreement was even worse. These standard forms omit the u0 term, which is crucial to our good results; therefore it is imperative to understand whether our Vpn is physically reasonable.…”

Particle-number conserving analysis for the 2-quasiparticle and high- K multi-quasiparticle states in doubly-odd 174,176 Lu

“…However, they often provide a wealth of nuclear structure phenomena. The rotational bands of deformed doublyodd nuclei exhibit several unusual features and anomalies such as Gallagher-Moszkowski (GM) splittings [1], Newby shifts [2], chiral structure [3], signature inversion [4,5], etc., which have been investigated from both experimental and theoretical sides [6][7][8][9][10][11][12][13][14][15][16][17][18]. A striking feature of axially symmetric deformed rare-earth nuclei with A∼180 is the observation of a large number of long-lived isomers [19].…”